{ "type": "FeatureCollection", "features": [ { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674324C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4388348406219, 30.87097128284414 ], [ -88.4388348406219, 30.887602919957587 ], [ -88.41955203044726, 30.887602919957587 ], [ -88.41955203044726, 30.87097128284414 ], [ -88.4388348406219, 30.87097128284414 ] ] ] }, "bbox": [ -88.4388348406219, 30.87097128284414, -88.41955203044726, 30.887602919957587 ], "properties": { "created": "2026-03-18 15:34:58.487988+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674324C.json", "type": "application/json" } ], "assets": { "1674324C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674324C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674336C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.43915688532839, 30.903959825681085 ], [ -88.43915688532839, 30.92059155571968 ], [ -88.4198672571427, 30.92059155571968 ], [ -88.4198672571427, 30.903959825681085 ], [ -88.43915688532839, 30.903959825681085 ] ] ] }, "bbox": [ -88.43915688532839, 30.903959825681085, -88.4198672571427, 30.92059155571968 ], "properties": { "created": "2026-03-18 15:34:58.831933+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674336C.json", "type": "application/json" } ], "assets": { "1674336C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674336C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674342C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.43931810676862, 30.920454032822935 ], [ -88.43931810676862, 30.93708580934868 ], [ -88.42002506538509, 30.93708580934868 ], [ -88.42002506538509, 30.920454032822935 ], [ -88.43931810676862, 30.920454032822935 ] ] ] }, "bbox": [ -88.43931810676862, 30.920454032822935, -88.42002506538509, 30.93708580934868 ], "properties": { "created": "2026-03-18 15:34:58.945362+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674342C.json", "type": "application/json" } ], "assets": { "1674342C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674342C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674348C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.43947946105975, 30.936948197095592 ], [ -88.43947946105975, 30.95358002012492 ], [ -88.42018300368079, 30.95358002012492 ], [ -88.42018300368079, 30.936948197095592 ], [ -88.43947946105975, 30.936948197095592 ] ] ] }, "bbox": [ -88.43947946105975, 30.936948197095592, -88.42018300368079, 30.95358002012492 ], "properties": { "created": "2026-03-18 15:34:59.057861+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674348C.json", "type": "application/json" } ], "assets": { "1674348C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674348C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674354C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.43964094829657, 30.95344231848547 ], [ -88.43964094829657, 30.97007418803484 ], [ -88.42034107212255, 30.97007418803484 ], [ -88.42034107212255, 30.95344231848547 ], [ -88.43964094829657, 30.95344231848547 ] ] ] }, "bbox": [ -88.43964094829657, 30.95344231848547, -88.42034107212255, 30.97007418803484 ], "properties": { "created": "2026-03-18 15:34:59.211966+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674354C.json", "type": "application/json" } ], "assets": { "1674354C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674354C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674360C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.43980256857402, 30.969936396978984 ], [ -88.43980256857402, 30.986568313064947 ], [ -88.42049927080329, 30.986568313064947 ], [ -88.42049927080329, 30.969936396978984 ], [ -88.43980256857402, 30.969936396978984 ] ] ] }, "bbox": [ -88.43980256857402, 30.969936396978984, -88.42049927080329, 30.986568313064947 ], "properties": { "created": "2026-03-18 15:34:59.386077+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674360C.json", "type": "application/json" } ], "assets": { "1674360C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674360C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674366C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.43996432198718, 30.986430432562607 ], [ -88.43996432198718, 31.00306239520172 ], [ -88.42065759981597, 31.00306239520172 ], [ -88.42065759981597, 30.986430432562607 ], [ -88.43996432198718, 30.986430432562607 ] ] ] }, "bbox": [ -88.43996432198718, 30.986430432562607, -88.42065759981597, 31.00306239520172 ], "properties": { "created": "2026-03-18 15:34:59.509601+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674366C.json", "type": "application/json" } ], "assets": { "1674366C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674366C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.44012620863116, 31.00292442522279 ], [ -88.44012620863116, 31.01955643443167 ], [ -88.42081605925374, 31.01955643443167 ], [ -88.42081605925374, 31.00292442522279 ], [ -88.44012620863116, 31.00292442522279 ] ] ] }, "bbox": [ -88.44012620863116, 31.00292442522279, -88.42081605925374, 31.01955643443167 ], "properties": { "created": "2026-03-18 15:34:59.771031+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674372C.json", "type": "application/json" } ], "assets": { "1674372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.44028822860128, 31.019418374946017 ], [ -88.44028822860128, 31.036050430741305 ], [ -88.42097464920981, 31.036050430741305 ], [ -88.42097464920981, 31.019418374946017 ], [ -88.44028822860128, 31.019418374946017 ] ] ] }, "bbox": [ -88.44028822860128, 31.019418374946017, -88.42097464920981, 31.036050430741305 ], "properties": { "created": "2026-03-18 15:34:59.905942+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674378C.json", "type": "application/json" } ], "assets": { "1674378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4404503819929, 31.03591228171876 ], [ -88.4404503819929, 31.052544384117166 ], [ -88.42113336977752, 31.052544384117166 ], [ -88.42113336977752, 31.03591228171876 ], [ -88.4404503819929, 31.03591228171876 ] ] ] }, "bbox": [ -88.4404503819929, 31.03591228171876, -88.42113336977752, 31.052544384117166 ], "properties": { "created": "2026-03-18 15:35:00.097290+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674384C.json", "type": "application/json" } ], "assets": { "1674384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.44061266890158, 31.05240614552753 ], [ -88.44061266890158, 31.069038294545795 ], [ -88.42129222105034, 31.069038294545795 ], [ -88.42129222105034, 31.05240614552753 ], [ -88.44061266890158, 31.05240614552753 ] ] ] }, "bbox": [ -88.44061266890158, 31.05240614552753, -88.42129222105034, 31.069038294545795 ], "properties": { "created": "2026-03-18 15:35:00.229409+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674390C.json", "type": "application/json" } ], "assets": { "1674390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.44077508942289, 31.068899966358842 ], [ -88.44077508942289, 31.08553216201376 ], [ -88.4214512031218, 31.08553216201376 ], [ -88.4214512031218, 31.068899966358842 ], [ -88.44077508942289, 31.068899966358842 ] ] ] }, "bbox": [ -88.44077508942289, 31.068899966358842, -88.4214512031218, 31.08553216201376 ], "properties": { "created": "2026-03-18 15:35:00.358373+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674396C.json", "type": "application/json" } ], "assets": { "1674396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.44093764365262, 31.085393744199234 ], [ -88.44093764365262, 31.102025986507613 ], [ -88.42161031608562, 31.102025986507613 ], [ -88.42161031608562, 31.085393744199234 ], [ -88.44093764365262, 31.085393744199234 ] ] ] }, "bbox": [ -88.44093764365262, 31.085393744199234, -88.42161031608562, 31.102025986507613 ], "properties": { "created": "2026-03-18 15:35:00.473987+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674402C.json", "type": "application/json" } ], "assets": { "1674402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1674408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4411003316866, 31.101887479035216 ], [ -88.4411003316866, 31.118519768013954 ], [ -88.42176956003557, 31.118519768013954 ], [ -88.42176956003557, 31.101887479035216 ], [ -88.4411003316866, 31.101887479035216 ] ] ] }, "bbox": [ -88.4411003316866, 31.101887479035216, -88.42176956003557, 31.118519768013954 ], "properties": { "created": "2026-03-18 15:35:00.607807+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1674408C.json", "type": "application/json" } ], "assets": { "1674408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1674408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1674000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41503920706613, 30.376257234934798 ], [ -88.41503920706613, 30.392884803104977 ], [ -88.39586040407434, 30.392884803104977 ], [ -88.39586040407434, 30.376257234934798 ], [ -88.41503920706613, 30.376257234934798 ] ] ] }, "bbox": [ -88.41503920706613, 30.376257234934798, -88.39586040407434, 30.392884803104977 ], "properties": { "created": "2026-03-18 15:35:00.823831+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680144C.json", "type": "application/json" } ], "assets": { "1680144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41519302906426, 30.392752895024444 ], [ -88.41519302906426, 30.409380507388768 ], [ -88.39601090388726, 30.409380507388768 ], [ -88.39601090388726, 30.392752895024444 ], [ -88.41519302906426, 30.392752895024444 ] ] ] }, "bbox": [ -88.41519302906426, 30.392752895024444, -88.39601090388726, 30.409380507388768 ], "properties": { "created": "2026-03-18 15:35:00.994571+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680150C.json", "type": "application/json" } ], "assets": { "1680150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41534697829478, 30.409248512715486 ], [ -88.41534697829478, 30.42587616928844 ], [ -88.3961615282008, 30.42587616928844 ], [ -88.3961615282008, 30.409248512715486 ], [ -88.41534697829478, 30.409248512715486 ] ] ] }, "bbox": [ -88.41534697829478, 30.409248512715486, -88.3961615282008, 30.42587616928844 ], "properties": { "created": "2026-03-18 15:35:01.130293+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680156C.json", "type": "application/json" } ], "assets": { "1680156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41550105484706, 30.425744087993944 ], [ -88.41550105484706, 30.442371788790055 ], [ -88.39631227710234, 30.442371788790055 ], [ -88.39631227710234, 30.425744087993944 ], [ -88.41550105484706, 30.425744087993944 ] ] ] }, "bbox": [ -88.41550105484706, 30.425744087993944, -88.39631227710234, 30.442371788790055 ], "properties": { "created": "2026-03-18 15:35:01.248340+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680162C.json", "type": "application/json" } ], "assets": { "1680162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41565525881055, 30.442239620845832 ], [ -88.41565525881055, 30.458867365879694 ], [ -88.39646315067937, 30.458867365879694 ], [ -88.39646315067937, 30.442239620845832 ], [ -88.41565525881055, 30.442239620845832 ] ] ] }, "bbox": [ -88.41565525881055, 30.442239620845832, -88.39646315067937, 30.458867365879694 ], "properties": { "created": "2026-03-18 15:35:01.372649+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680168C.json", "type": "application/json" } ], "assets": { "1680168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41580959027482, 30.45873511125724 ], [ -88.41580959027482, 30.475362900543463 ], [ -88.39661414901948, 30.475362900543463 ], [ -88.39661414901948, 30.45873511125724 ], [ -88.41580959027482, 30.45873511125724 ] ] ] }, "bbox": [ -88.41580959027482, 30.45873511125724, -88.39661414901948, 30.475362900543463 ], "properties": { "created": "2026-03-18 15:35:01.563880+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680174C.json", "type": "application/json" } ], "assets": { "1680174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41596404932955, 30.4752305592142 ], [ -88.41596404932955, 30.491858392767426 ], [ -88.39676527221042, 30.491858392767426 ], [ -88.39676527221042, 30.4752305592142 ], [ -88.41596404932955, 30.4752305592142 ] ] ] }, "bbox": [ -88.41596404932955, 30.4752305592142, -88.39676527221042, 30.491858392767426 ], "properties": { "created": "2026-03-18 15:35:01.685599+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680180C.json", "type": "application/json" } ], "assets": { "1680180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41611863606452, 30.491725964702802 ], [ -88.41611863606452, 30.50835384253775 ], [ -88.39691652033997, 30.50835384253775 ], [ -88.39691652033997, 30.491725964702802 ], [ -88.41611863606452, 30.491725964702802 ] ] ] }, "bbox": [ -88.41611863606452, 30.491725964702802, -88.39691652033997, 30.50835384253775 ], "properties": { "created": "2026-03-18 15:35:01.833372+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680186C.json", "type": "application/json" } ], "assets": { "1680186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41627335056964, 30.508221327709137 ], [ -88.41627335056964, 30.524849249840546 ], [ -88.39706789349606, 30.524849249840546 ], [ -88.39706789349606, 30.508221327709137 ], [ -88.41627335056964, 30.508221327709137 ] ] ] }, "bbox": [ -88.41627335056964, 30.508221327709137, -88.39706789349606, 30.524849249840546 ], "properties": { "created": "2026-03-18 15:35:01.966098+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680192C.json", "type": "application/json" } ], "assets": { "1680192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4164281929349, 30.524716648219314 ], [ -88.4164281929349, 30.541344614661973 ], [ -88.39721939176671, 30.541344614661973 ], [ -88.39721939176671, 30.524716648219314 ], [ -88.4164281929349, 30.524716648219314 ] ] ] }, "bbox": [ -88.4164281929349, 30.524716648219314, -88.39721939176671, 30.541344614661973 ], "properties": { "created": "2026-03-18 15:35:02.112356+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680198C.json", "type": "application/json" } ], "assets": { "1680198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41658316325041, 30.54121192621945 ], [ -88.41658316325041, 30.557839936988177 ], [ -88.39737101524007, 30.557839936988177 ], [ -88.39737101524007, 30.54121192621945 ], [ -88.41658316325041, 30.54121192621945 ] ] ] }, "bbox": [ -88.41658316325041, 30.54121192621945, -88.39737101524007, 30.557839936988177 ], "properties": { "created": "2026-03-18 15:35:02.271189+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680204C.json", "type": "application/json" } ], "assets": { "1680204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680210C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41673826160641, 30.557707161695664 ], [ -88.41673826160641, 30.57433521680533 ], [ -88.39752276400436, 30.57433521680533 ], [ -88.39752276400436, 30.557707161695664 ], [ -88.41673826160641, 30.557707161695664 ] ] ] }, "bbox": [ -88.41673826160641, 30.557707161695664, -88.39752276400436, 30.57433521680533 ], "properties": { "created": "2026-03-18 15:35:02.417669+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680210C.json", "type": "application/json" } ], "assets": { "1680210C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680210C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680216C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41689348809321, 30.57420235463411 ], [ -88.41689348809321, 30.590830454099635 ], [ -88.39767463814796, 30.590830454099635 ], [ -88.39767463814796, 30.57420235463411 ], [ -88.41689348809321, 30.57420235463411 ] ] ] }, "bbox": [ -88.41689348809321, 30.57420235463411, -88.39767463814796, 30.590830454099635 ], "properties": { "created": "2026-03-18 15:35:02.690635+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680216C.json", "type": "application/json" } ], "assets": { "1680216C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680216C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680222C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41704884280126, 30.59069750502094 ], [ -88.41704884280126, 30.607325648857277 ], [ -88.39782663775931, 30.607325648857277 ], [ -88.39782663775931, 30.59069750502094 ], [ -88.41704884280126, 30.59069750502094 ] ] ] }, "bbox": [ -88.41704884280126, 30.59069750502094, -88.39782663775931, 30.607325648857277 ], "properties": { "created": "2026-03-18 15:35:02.870287+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680222C.json", "type": "application/json" } ], "assets": { "1680222C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680222C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680228C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41720432582113, 30.607192612842326 ], [ -88.41720432582113, 30.62382080106449 ], [ -88.39797876292695, 30.62382080106449 ], [ -88.39797876292695, 30.607192612842326 ], [ -88.41720432582113, 30.607192612842326 ] ] ] }, "bbox": [ -88.41720432582113, 30.607192612842326, -88.39797876292695, 30.62382080106449 ], "properties": { "created": "2026-03-18 15:35:02.975051+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680228C.json", "type": "application/json" } ], "assets": { "1680228C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680228C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680234C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41735993724346, 30.62368767808446 ], [ -88.41735993724346, 30.64031591070746 ], [ -88.39813101373959, 30.64031591070746 ], [ -88.39813101373959, 30.62368767808446 ], [ -88.41735993724346, 30.62368767808446 ] ] ] }, "bbox": [ -88.41735993724346, 30.62368767808446, -88.39813101373959, 30.64031591070746 ], "properties": { "created": "2026-03-18 15:35:03.163033+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680234C.json", "type": "application/json" } ], "assets": { "1680234C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680234C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680240C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41751567715902, 30.640182700733526 ], [ -88.41751567715902, 30.65681097777246 ], [ -88.39828339028597, 30.65681097777246 ], [ -88.39828339028597, 30.640182700733526 ], [ -88.41751567715902, 30.640182700733526 ] ] ] }, "bbox": [ -88.41751567715902, 30.640182700733526, -88.39828339028597, 30.65681097777246 ], "properties": { "created": "2026-03-18 15:35:03.305939+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680240C.json", "type": "application/json" } ], "assets": { "1680240C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680240C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680246C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41767154565869, 30.65667768077575 ], [ -88.41767154565869, 30.673306002245745 ], [ -88.39843589265499, 30.673306002245745 ], [ -88.39843589265499, 30.65667768077575 ], [ -88.41767154565869, 30.65667768077575 ] ] ] }, "bbox": [ -88.41767154565869, 30.65667768077575, -88.39843589265499, 30.673306002245745 ], "properties": { "created": "2026-03-18 15:35:03.435211+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680246C.json", "type": "application/json" } ], "assets": { "1680246C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680246C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680252C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41782754283348, 30.673172618197352 ], [ -88.41782754283348, 30.689800984113557 ], [ -88.39858852093566, 30.689800984113557 ], [ -88.39858852093566, 30.673172618197352 ], [ -88.41782754283348, 30.673172618197352 ] ] ] }, "bbox": [ -88.41782754283348, 30.673172618197352, -88.39858852093566, 30.689800984113557 ], "properties": { "created": "2026-03-18 15:35:03.669956+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680252C.json", "type": "application/json" } ], "assets": { "1680252C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680252C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680258C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41798366877447, 30.68966751298456 ], [ -88.41798366877447, 30.70629592336219 ], [ -88.39874127521705, 30.70629592336219 ], [ -88.39874127521705, 30.68966751298456 ], [ -88.41798366877447, 30.68966751298456 ] ] ] }, "bbox": [ -88.41798366877447, 30.68966751298456, -88.39874127521705, 30.70629592336219 ], "properties": { "created": "2026-03-18 15:35:03.798671+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680258C.json", "type": "application/json" } ], "assets": { "1680258C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680258C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680264C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41813992357287, 30.706162365123625 ], [ -88.41813992357287, 30.722790819977956 ], [ -88.3988941555884, 30.722790819977956 ], [ -88.3988941555884, 30.706162365123625 ], [ -88.41813992357287, 30.706162365123625 ] ] ] }, "bbox": [ -88.41813992357287, 30.706162365123625, -88.3988941555884, 30.722790819977956 ], "properties": { "created": "2026-03-18 15:35:03.914838+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680264C.json", "type": "application/json" } ], "assets": { "1680264C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680264C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680270C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41829630732002, 30.72265717460083 ], [ -88.41829630732002, 30.739285673947133 ], [ -88.39904716213901, 30.739285673947133 ], [ -88.39904716213901, 30.72265717460083 ], [ -88.41829630732002, 30.72265717460083 ] ] ] }, "bbox": [ -88.41829630732002, 30.72265717460083, -88.39904716213901, 30.739285673947133 ], "properties": { "created": "2026-03-18 15:35:04.096800+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680270C.json", "type": "application/json" } ], "assets": { "1680270C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680270C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680276C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41845282010735, 30.739151941402437 ], [ -88.41845282010735, 30.755780485256047 ], [ -88.39920029495829, 30.755780485256047 ], [ -88.39920029495829, 30.739151941402437 ], [ -88.41845282010735, 30.739151941402437 ] ] ] }, "bbox": [ -88.41845282010735, 30.739151941402437, -88.39920029495829, 30.755780485256047 ], "properties": { "created": "2026-03-18 15:35:04.206442+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680276C.json", "type": "application/json" } ], "assets": { "1680276C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680276C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680282C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41860946202638, 30.755646665514735 ], [ -88.41860946202638, 30.772275253891035 ], [ -88.39935355413581, 30.772275253891035 ], [ -88.39935355413581, 30.755646665514735 ], [ -88.41860946202638, 30.755646665514735 ] ] ] }, "bbox": [ -88.41860946202638, 30.755646665514735, -88.39935355413581, 30.772275253891035 ], "properties": { "created": "2026-03-18 15:35:04.317851+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680282C.json", "type": "application/json" } ], "assets": { "1680282C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680282C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680288C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41876623316881, 30.772141346924045 ], [ -88.41876623316881, 30.78876997983846 ], [ -88.3995069397612, 30.78876997983846 ], [ -88.3995069397612, 30.772141346924045 ], [ -88.41876623316881, 30.772141346924045 ] ] ] }, "bbox": [ -88.41876623316881, 30.772141346924045, -88.3995069397612, 30.78876997983846 ], "properties": { "created": "2026-03-18 15:35:04.443033+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680288C.json", "type": "application/json" } ], "assets": { "1680288C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680288C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680294C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41892313362636, 30.788635985616672 ], [ -88.41892313362636, 30.80526466308466 ], [ -88.39966045192419, 30.80526466308466 ], [ -88.39966045192419, 30.788635985616672 ], [ -88.41892313362636, 30.788635985616672 ] ] ] }, "bbox": [ -88.41892313362636, 30.788635985616672, -88.39966045192419, 30.80526466308466 ], "properties": { "created": "2026-03-18 15:35:04.624650+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680294C.json", "type": "application/json" } ], "assets": { "1680294C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680294C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680300C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41908016349095, 30.805130581578943 ], [ -88.41908016349095, 30.821759303616016 ], [ -88.39981409071464, 30.821759303616016 ], [ -88.39981409071464, 30.805130581578943 ], [ -88.41908016349095, 30.805130581578943 ] ] ] }, "bbox": [ -88.41908016349095, 30.805130581578943, -88.39981409071464, 30.821759303616016 ], "properties": { "created": "2026-03-18 15:35:04.847358+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680300C.json", "type": "application/json" } ], "assets": { "1680300C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680300C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680306C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41923732285454, 30.821625134797205 ], [ -88.41923732285454, 30.838253901418923 ], [ -88.39996785622256, 30.838253901418923 ], [ -88.39996785622256, 30.821625134797205 ], [ -88.41923732285454, 30.821625134797205 ] ] ] }, "bbox": [ -88.41923732285454, 30.821625134797205, -88.39996785622256, 30.838253901418923 ], "properties": { "created": "2026-03-18 15:35:04.963968+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680306C.json", "type": "application/json" } ], "assets": { "1680306C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680306C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680312C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41939461180924, 30.83811964525783 ], [ -88.41939461180924, 30.854748456479772 ], [ -88.40012174853801, 30.854748456479772 ], [ -88.40012174853801, 30.83811964525783 ], [ -88.41939461180924, 30.83811964525783 ] ] ] }, "bbox": [ -88.41939461180924, 30.83811964525783, -88.40012174853801, 30.854748456479772 ], "properties": { "created": "2026-03-18 15:35:05.063307+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680312C.json", "type": "application/json" } ], "assets": { "1680312C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680312C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680318C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41955203044726, 30.85461411294717 ], [ -88.41955203044726, 30.871242968784973 ], [ -88.40027576775115, 30.871242968784973 ], [ -88.40027576775115, 30.85461411294717 ], [ -88.41955203044726, 30.85461411294717 ] ] ] }, "bbox": [ -88.41955203044726, 30.85461411294717, -88.40027576775115, 30.871242968784973 ], "properties": { "created": "2026-03-18 15:35:05.173207+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680318C.json", "type": "application/json" } ], "assets": { "1680318C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680318C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680324C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.41970957886093, 30.871108537851622 ], [ -88.41970957886093, 30.887737438320976 ], [ -88.40042991395232, 30.887737438320976 ], [ -88.40042991395232, 30.871108537851622 ], [ -88.41970957886093, 30.871108537851622 ] ] ] }, "bbox": [ -88.41970957886093, 30.871108537851622, -88.40042991395232, 30.887737438320976 ], "properties": { "created": "2026-03-18 15:35:05.340234+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680324C.json", "type": "application/json" } ], "assets": { "1680324C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680324C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680330C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4198672571427, 30.887602919957587 ], [ -88.4198672571427, 30.904231865074188 ], [ -88.4005841872319, 30.904231865074188 ], [ -88.4005841872319, 30.887602919957587 ], [ -88.4198672571427, 30.887602919957587 ] ] ] }, "bbox": [ -88.4198672571427, 30.887602919957587, -88.4005841872319, 30.904231865074188 ], "properties": { "created": "2026-03-18 15:35:05.473635+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680330C.json", "type": "application/json" } ], "assets": { "1680330C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680330C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680336C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42002506538509, 30.90409725925146 ], [ -88.42002506538509, 30.920726249031095 ], [ -88.40073858768042, 30.920726249031095 ], [ -88.40073858768042, 30.90409725925146 ], [ -88.42002506538509, 30.90409725925146 ] ] ] }, "bbox": [ -88.42002506538509, 30.90409725925146, -88.40073858768042, 30.920726249031095 ], "properties": { "created": "2026-03-18 15:35:05.690424+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680336C.json", "type": "application/json" } ], "assets": { "1680336C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680336C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680342C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42018300368079, 30.92059155571968 ], [ -88.42018300368079, 30.93722059017815 ], [ -88.4008931153885, 30.93722059017815 ], [ -88.4008931153885, 30.92059155571968 ], [ -88.42018300368079, 30.92059155571968 ] ] ] }, "bbox": [ -88.42018300368079, 30.92059155571968, -88.4008931153885, 30.93722059017815 ], "properties": { "created": "2026-03-18 15:35:05.890334+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680342C.json", "type": "application/json" } ], "assets": { "1680342C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680342C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680348C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42034107212255, 30.93708580934868 ], [ -88.42034107212255, 30.95371488850183 ], [ -88.4010477704469, 30.95371488850183 ], [ -88.4010477704469, 30.93708580934868 ], [ -88.42034107212255, 30.93708580934868 ] ] ] }, "bbox": [ -88.42034107212255, 30.93708580934868, -88.4010477704469, 30.95371488850183 ], "properties": { "created": "2026-03-18 15:35:05.995054+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680348C.json", "type": "application/json" } ], "assets": { "1680348C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680348C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680354C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42049927080329, 30.95358002012492 ], [ -88.42049927080329, 30.970209143988633 ], [ -88.40120255294642, 30.970209143988633 ], [ -88.40120255294642, 30.95358002012492 ], [ -88.42049927080329, 30.95358002012492 ] ] ] }, "bbox": [ -88.42049927080329, 30.95358002012492, -88.40120255294642, 30.970209143988633 ], "properties": { "created": "2026-03-18 15:35:06.114225+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680354C.json", "type": "application/json" } ], "assets": { "1680354C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680354C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680360C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42065759981597, 30.97007418803484 ], [ -88.42065759981597, 30.986703356625085 ], [ -88.40135746297805, 30.986703356625085 ], [ -88.40135746297805, 30.97007418803484 ], [ -88.42065759981597, 30.97007418803484 ] ] ] }, "bbox": [ -88.42065759981597, 30.97007418803484, -88.40135746297805, 30.986703356625085 ], "properties": { "created": "2026-03-18 15:35:06.230653+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680360C.json", "type": "application/json" } ], "assets": { "1680360C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680360C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680366C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42081605925374, 30.986568313064947 ], [ -88.42081605925374, 31.00319752639767 ], [ -88.40151250063286, 31.00319752639767 ], [ -88.40151250063286, 30.986568313064947 ], [ -88.42081605925374, 30.986568313064947 ] ] ] }, "bbox": [ -88.42081605925374, 30.986568313064947, -88.40151250063286, 31.00319752639767 ], "properties": { "created": "2026-03-18 15:35:06.356135+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680366C.json", "type": "application/json" } ], "assets": { "1680366C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680366C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42097464920981, 31.00306239520172 ], [ -88.42097464920981, 31.019691653292945 ], [ -88.40166766600203, 31.019691653292945 ], [ -88.40166766600203, 31.00306239520172 ], [ -88.42097464920981, 31.00306239520172 ] ] ] }, "bbox": [ -88.42097464920981, 31.00306239520172, -88.40166766600203, 31.019691653292945 ], "properties": { "created": "2026-03-18 15:35:06.675641+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680372C.json", "type": "application/json" } ], "assets": { "1680372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42113336977752, 31.01955643443167 ], [ -88.42113336977752, 31.036185737297473 ], [ -88.40182295917685, 31.036185737297473 ], [ -88.40182295917685, 31.01955643443167 ], [ -88.42113336977752, 31.01955643443167 ] ] ] }, "bbox": [ -88.42113336977752, 31.01955643443167, -88.40182295917685, 31.036185737297473 ], "properties": { "created": "2026-03-18 15:35:06.799957+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680378C.json", "type": "application/json" } ], "assets": { "1680378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42129222105034, 31.036050430741305 ], [ -88.42129222105034, 31.052679778397806 ], [ -88.4019783802487, 31.052679778397806 ], [ -88.4019783802487, 31.036050430741305 ], [ -88.42129222105034, 31.036050430741305 ] ] ] }, "bbox": [ -88.42129222105034, 31.036050430741305, -88.4019783802487, 31.052679778397806 ], "properties": { "created": "2026-03-18 15:35:06.916370+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680384C.json", "type": "application/json" } ], "assets": { "1680384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4214512031218, 31.052544384117166 ], [ -88.4214512031218, 31.06917377658049 ], [ -88.40213392930912, 31.06917377658049 ], [ -88.40213392930912, 31.052544384117166 ], [ -88.4214512031218, 31.052544384117166 ] ] ] }, "bbox": [ -88.4214512031218, 31.052544384117166, -88.40213392930912, 31.06917377658049 ], "properties": { "created": "2026-03-18 15:35:07.047905+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680390C.json", "type": "application/json" } ], "assets": { "1680390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42161031608562, 31.069038294545795 ], [ -88.42161031608562, 31.085667731832157 ], [ -88.40228960644971, 31.085667731832157 ], [ -88.40228960644971, 31.069038294545795 ], [ -88.42161031608562, 31.069038294545795 ] ] ] }, "bbox": [ -88.42161031608562, 31.069038294545795, -88.40228960644971, 31.085667731832157 ], "properties": { "created": "2026-03-18 15:35:07.142828+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680396C.json", "type": "application/json" } ], "assets": { "1680396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42176956003557, 31.08553216201376 ], [ -88.42176956003557, 31.102161644139375 ], [ -88.40244541176223, 31.102161644139375 ], [ -88.40244541176223, 31.08553216201376 ], [ -88.42176956003557, 31.08553216201376 ] ] ] }, "bbox": [ -88.42176956003557, 31.08553216201376, -88.40244541176223, 31.102161644139375 ], "properties": { "created": "2026-03-18 15:35:07.267679+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680402C.json", "type": "application/json" } ], "assets": { "1680402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1680408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.42192893506558, 31.102025986507613 ], [ -88.42192893506558, 31.11865551348879 ], [ -88.40260134533851, 31.11865551348879 ], [ -88.40260134533851, 31.102025986507613 ], [ -88.42192893506558, 31.102025986507613 ] ] ] }, "bbox": [ -88.42192893506558, 31.102025986507613, -88.40260134533851, 31.11865551348879 ], "properties": { "created": "2026-03-18 15:35:07.386406+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1680408C.json", "type": "application/json" } ], "assets": { "1680408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1680408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1680000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1682270B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36100789384231, 30.723049687747242 ], [ -88.36100789384231, 30.739670014496575 ], [ -88.34176813094615, 30.739670014496575 ], [ -88.34176813094615, 30.723049687747242 ], [ -88.36100789384231, 30.723049687747242 ] ] ] }, "bbox": [ -88.36100789384231, 30.723049687747242, -88.34176813094615, 30.739670014496575 ], "properties": { "created": "2026-03-18 15:35:07.493917+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1682270B.json", "type": "application/json" } ], "assets": { "1682270B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1682270B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686130C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39571002867471, 30.343397436088416 ], [ -88.39571002867471, 30.3600222349101 ], [ -88.37654092738921, 30.3600222349101 ], [ -88.37654092738921, 30.343397436088416 ], [ -88.39571002867471, 30.343397436088416 ] ] ] }, "bbox": [ -88.39571002867471, 30.343397436088416, -88.37654092738921, 30.3600222349101 ], "properties": { "created": "2026-03-18 15:35:07.648357+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686130C.json", "type": "application/json" } ], "assets": { "1686130C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686130C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 132000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686138C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39586040407434, 30.35989326744084 ], [ -88.39586040407434, 30.376518108638447 ], [ -88.37668798861313, 30.376518108638447 ], [ -88.37668798861313, 30.35989326744084 ], [ -88.39586040407434, 30.35989326744084 ] ] ] }, "bbox": [ -88.39586040407434, 30.35989326744084, -88.37668798861313, 30.376518108638447 ], "properties": { "created": "2026-03-18 15:35:07.770375+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686138C.json", "type": "application/json" } ], "assets": { "1686138C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686138C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 138000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39601090388726, 30.376389056451018 ], [ -88.39601090388726, 30.393013940038387 ], [ -88.3768351715242, 30.393013940038387 ], [ -88.3768351715242, 30.376389056451018 ], [ -88.39601090388726, 30.376389056451018 ] ] ] }, "bbox": [ -88.39601090388726, 30.376389056451018, -88.3768351715242, 30.393013940038387 ], "properties": { "created": "2026-03-18 15:35:07.959588+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686144C.json", "type": "application/json" } ], "assets": { "1686144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3961615282008, 30.392884803104977 ], [ -88.3961615282008, 30.409509729095987 ], [ -88.37698247620781, 30.409509729095987 ], [ -88.37698247620781, 30.392884803104977 ], [ -88.3961615282008, 30.392884803104977 ] ] ] }, "bbox": [ -88.3961615282008, 30.392884803104977, -88.37698247620781, 30.409509729095987 ], "properties": { "created": "2026-03-18 15:35:08.099809+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686150C.json", "type": "application/json" } ], "assets": { "1686150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39631227710234, 30.409380507388768 ], [ -88.39631227710234, 30.42600547579735 ], [ -88.37712990274937, 30.42600547579735 ], [ -88.37712990274937, 30.409380507388768 ], [ -88.39631227710234, 30.409380507388768 ] ] ] }, "bbox": [ -88.39631227710234, 30.409380507388768, -88.37712990274937, 30.42600547579735 ], "properties": { "created": "2026-03-18 15:35:08.225502+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686156C.json", "type": "application/json" } ], "assets": { "1686156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39646315067937, 30.42587616928844 ], [ -88.39646315067937, 30.442501180128552 ], [ -88.37727745123442, 30.442501180128552 ], [ -88.37727745123442, 30.42587616928844 ], [ -88.39646315067937, 30.42587616928844 ] ] ] }, "bbox": [ -88.39646315067937, 30.42587616928844, -88.37727745123442, 30.442501180128552 ], "properties": { "created": "2026-03-18 15:35:08.336798+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686162C.json", "type": "application/json" } ], "assets": { "1686162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39661414901948, 30.442371788790055 ], [ -88.39661414901948, 30.4589968420757 ], [ -88.3774251217486, 30.4589968420757 ], [ -88.3774251217486, 30.442371788790055 ], [ -88.39661414901948, 30.442371788790055 ] ] ] }, "bbox": [ -88.39661414901948, 30.442371788790055, -88.3774251217486, 30.4589968420757 ], "properties": { "created": "2026-03-18 15:35:08.474867+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686168C.json", "type": "application/json" } ], "assets": { "1686168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39676527221042, 30.458867365879694 ], [ -88.39676527221042, 30.475492461624924 ], [ -88.37757291437764, 30.475492461624924 ], [ -88.37757291437764, 30.458867365879694 ], [ -88.39676527221042, 30.458867365879694 ] ] ] }, "bbox": [ -88.39676527221042, 30.458867365879694, -88.37757291437764, 30.475492461624924 ], "properties": { "created": "2026-03-18 15:35:08.803003+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686174C.json", "type": "application/json" } ], "assets": { "1686174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39691652033997, 30.475362900543463 ], [ -88.39691652033997, 30.491988038762347 ], [ -88.37772082920742, 30.491988038762347 ], [ -88.37772082920742, 30.475362900543463 ], [ -88.39691652033997, 30.475362900543463 ] ] ] }, "bbox": [ -88.39691652033997, 30.475362900543463, -88.37772082920742, 30.491988038762347 ], "properties": { "created": "2026-03-18 15:35:08.913874+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686180C.json", "type": "application/json" } ], "assets": { "1686180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39706789349606, 30.491858392767426 ], [ -88.39706789349606, 30.508483573474127 ], [ -88.37786886632387, 30.508483573474127 ], [ -88.37786886632387, 30.491858392767426 ], [ -88.39706789349606, 30.491858392767426 ] ] ] }, "bbox": [ -88.39706789349606, 30.491858392767426, -88.37786886632387, 30.508483573474127 ], "properties": { "created": "2026-03-18 15:35:09.054719+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686186C.json", "type": "application/json" } ], "assets": { "1686186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39721939176671, 30.50835384253775 ], [ -88.39721939176671, 30.524979065746425 ], [ -88.37801702581304, 30.524979065746425 ], [ -88.37801702581304, 30.50835384253775 ], [ -88.39721939176671, 30.50835384253775 ] ] ] }, "bbox": [ -88.39721939176671, 30.50835384253775, -88.37801702581304, 30.524979065746425 ], "properties": { "created": "2026-03-18 15:35:09.206450+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686192C.json", "type": "application/json" } ], "assets": { "1686192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39737101524007, 30.524849249840546 ], [ -88.39737101524007, 30.54147451556542 ], [ -88.37816530776111, 30.54147451556542 ], [ -88.37816530776111, 30.524849249840546 ], [ -88.39737101524007, 30.524849249840546 ] ] ] }, "bbox": [ -88.39737101524007, 30.524849249840546, -88.37816530776111, 30.54147451556542 ], "properties": { "created": "2026-03-18 15:35:09.310299+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686198C.json", "type": "application/json" } ], "assets": { "1686198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39752276400436, 30.541344614661973 ], [ -88.39752276400436, 30.55796992291727 ], [ -88.37831371225431, 30.55796992291727 ], [ -88.37831371225431, 30.541344614661973 ], [ -88.39752276400436, 30.541344614661973 ] ] ] }, "bbox": [ -88.39752276400436, 30.541344614661973, -88.37831371225431, 30.55796992291727 ], "properties": { "created": "2026-03-18 15:35:09.451860+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686204C.json", "type": "application/json" } ], "assets": { "1686204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686210C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39767463814796, 30.557839936988177 ], [ -88.39767463814796, 30.574465287788218 ], [ -88.37846223937905, 30.574465287788218 ], [ -88.37846223937905, 30.557839936988177 ], [ -88.39767463814796, 30.557839936988177 ] ] ] }, "bbox": [ -88.39767463814796, 30.557839936988177, -88.37846223937905, 30.574465287788218 ], "properties": { "created": "2026-03-18 15:35:09.618905+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686210C.json", "type": "application/json" } ], "assets": { "1686210C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686210C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686216C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39782663775931, 30.57433521680533 ], [ -88.39782663775931, 30.59096061016444 ], [ -88.37861088922179, 30.59096061016444 ], [ -88.37861088922179, 30.57433521680533 ], [ -88.39782663775931, 30.57433521680533 ] ] ] }, "bbox": [ -88.39782663775931, 30.57433521680533, -88.37861088922179, 30.59096061016444 ], "properties": { "created": "2026-03-18 15:35:09.737956+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686216C.json", "type": "application/json" } ], "assets": { "1686216C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686216C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686222C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39797876292695, 30.590830454099635 ], [ -88.39797876292695, 30.607455890032192 ], [ -88.37875966186911, 30.607455890032192 ], [ -88.37875966186911, 30.590830454099635 ], [ -88.39797876292695, 30.590830454099635 ] ] ] }, "bbox": [ -88.39797876292695, 30.590830454099635, -88.37875966186911, 30.607455890032192 ], "properties": { "created": "2026-03-18 15:35:09.859861+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686222C.json", "type": "application/json" } ], "assets": { "1686222C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686222C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686228C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39813101373959, 30.607325648857277 ], [ -88.39813101373959, 30.62395112737772 ], [ -88.37890855740767, 30.62395112737772 ], [ -88.37890855740767, 30.607325648857277 ], [ -88.39813101373959, 30.607325648857277 ] ] ] }, "bbox": [ -88.39813101373959, 30.607325648857277, -88.37890855740767, 30.62395112737772 ], "properties": { "created": "2026-03-18 15:35:09.959691+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686228C.json", "type": "application/json" } ], "assets": { "1686228C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686228C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686234C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39828339028597, 30.62382080106449 ], [ -88.39828339028597, 30.640446322187255 ], [ -88.37905757592429, 30.640446322187255 ], [ -88.37905757592429, 30.62382080106449 ], [ -88.39828339028597, 30.62382080106449 ] ] ] }, "bbox": [ -88.39828339028597, 30.62382080106449, -88.37905757592429, 30.640446322187255 ], "properties": { "created": "2026-03-18 15:35:10.081588+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686234C.json", "type": "application/json" } ], "assets": { "1686234C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686234C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686240C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39843589265499, 30.64031591070746 ], [ -88.39843589265499, 30.656941474447073 ], [ -88.37920671750585, 30.656941474447073 ], [ -88.37920671750585, 30.64031591070746 ], [ -88.39843589265499, 30.64031591070746 ] ] ] }, "bbox": [ -88.39843589265499, 30.64031591070746, -88.37920671750585, 30.656941474447073 ], "properties": { "created": "2026-03-18 15:35:10.196928+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686240C.json", "type": "application/json" } ], "assets": { "1686240C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686240C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686246C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39858852093566, 30.65681097777246 ], [ -88.39858852093566, 30.673436584143477 ], [ -88.37935598223936, 30.673436584143477 ], [ -88.37935598223936, 30.65681097777246 ], [ -88.39858852093566, 30.65681097777246 ] ] ] }, "bbox": [ -88.39858852093566, 30.65681097777246, -88.37935598223936, 30.673436584143477 ], "properties": { "created": "2026-03-18 15:35:10.323636+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686246C.json", "type": "application/json" } ], "assets": { "1686246C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686246C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686252C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39874127521705, 30.673306002245745 ], [ -88.39874127521705, 30.689931651262725 ], [ -88.37950537021192, 30.689931651262725 ], [ -88.37950537021192, 30.673306002245745 ], [ -88.39874127521705, 30.673306002245745 ] ] ] }, "bbox": [ -88.39874127521705, 30.673306002245745, -88.37950537021192, 30.689931651262725 ], "properties": { "created": "2026-03-18 15:35:10.418646+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686252C.json", "type": "application/json" } ], "assets": { "1686252C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686252C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686258C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3988941555884, 30.689800984113557 ], [ -88.3988941555884, 30.706426675791143 ], [ -88.3796548815107, 30.706426675791143 ], [ -88.3796548815107, 30.689800984113557 ], [ -88.3988941555884, 30.689800984113557 ] ] ] }, "bbox": [ -88.3988941555884, 30.689800984113557, -88.3796548815107, 30.706426675791143 ], "properties": { "created": "2026-03-18 15:35:10.660544+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686258C.json", "type": "application/json" } ], "assets": { "1686258C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686258C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686264C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39904716213901, 30.70629592336219 ], [ -88.39904716213901, 30.722921657715073 ], [ -88.37980451622309, 30.722921657715073 ], [ -88.37980451622309, 30.70629592336219 ], [ -88.39904716213901, 30.70629592336219 ] ] ] }, "bbox": [ -88.39904716213901, 30.70629592336219, -88.37980451622309, 30.722921657715073 ], "properties": { "created": "2026-03-18 15:35:10.752610+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686264C.json", "type": "application/json" } ], "assets": { "1686264C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686264C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686270C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39920029495829, 30.722790819977956 ], [ -88.39920029495829, 30.73941659702082 ], [ -88.37995427443647, 30.73941659702082 ], [ -88.37995427443647, 30.722790819977956 ], [ -88.39920029495829, 30.722790819977956 ] ] ] }, "bbox": [ -88.39920029495829, 30.722790819977956, -88.37995427443647, 30.73941659702082 ], "properties": { "created": "2026-03-18 15:35:11.072589+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686270C.json", "type": "application/json" } ], "assets": { "1686270C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686270C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686276C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39935355413581, 30.739285673947133 ], [ -88.39935355413581, 30.755911493694747 ], [ -88.38010415623837, 30.755911493694747 ], [ -88.38010415623837, 30.739285673947133 ], [ -88.39935355413581, 30.739285673947133 ] ] ] }, "bbox": [ -88.39935355413581, 30.739285673947133, -88.38010415623837, 30.755911493694747 ], "properties": { "created": "2026-03-18 15:35:11.191616+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686276C.json", "type": "application/json" } ], "assets": { "1686276C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686276C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686282B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3995069397612, 30.755780485256047 ], [ -88.3995069397612, 30.77240634772321 ], [ -88.38025416171644, 30.77240634772321 ], [ -88.38025416171644, 30.755780485256047 ], [ -88.3995069397612, 30.755780485256047 ] ] ] }, "bbox": [ -88.3995069397612, 30.755780485256047, -88.38025416171644, 30.77240634772321 ], "properties": { "created": "2026-03-18 15:35:11.321894+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686282B.json", "type": "application/json" } ], "assets": { "1686282B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686282B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686288B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39966045192419, 30.772275253891035 ], [ -88.39966045192419, 30.788901159092596 ], [ -88.3804042909584, 30.788901159092596 ], [ -88.3804042909584, 30.772275253891035 ], [ -88.39966045192419, 30.772275253891035 ] ] ] }, "bbox": [ -88.39966045192419, 30.772275253891035, -88.3804042909584, 30.788901159092596 ], "properties": { "created": "2026-03-18 15:35:11.422006+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686288B.json", "type": "application/json" } ], "assets": { "1686288B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686288B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686294C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39981409071464, 30.78876997983846 ], [ -88.39981409071464, 30.805395927789277 ], [ -88.3805545440521, 30.805395927789277 ], [ -88.3805545440521, 30.78876997983846 ], [ -88.39981409071464, 30.78876997983846 ] ] ] }, "bbox": [ -88.39981409071464, 30.78876997983846, -88.3805545440521, 30.805395927789277 ], "properties": { "created": "2026-03-18 15:35:11.623670+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686294C.json", "type": "application/json" } ], "assets": { "1686294C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686294C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686300C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.39996785622256, 30.80526466308466 ], [ -88.39996785622256, 30.82189065379967 ], [ -88.38070492108551, 30.82189065379967 ], [ -88.38070492108551, 30.80526466308466 ], [ -88.39996785622256, 30.80526466308466 ] ] ] }, "bbox": [ -88.39996785622256, 30.80526466308466, -88.38070492108551, 30.82189065379967 ], "properties": { "created": "2026-03-18 15:35:11.754770+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686300C.json", "type": "application/json" } ], "assets": { "1686300C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686300C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686306C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40012174853801, 30.821759303616016 ], [ -88.40012174853801, 30.8383853371102 ], [ -88.38085542214668, 30.8383853371102 ], [ -88.38085542214668, 30.821759303616016 ], [ -88.40012174853801, 30.821759303616016 ] ] ] }, "bbox": [ -88.40012174853801, 30.821759303616016, -88.38085542214668, 30.8383853371102 ], "properties": { "created": "2026-03-18 15:35:11.911464+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686306C.json", "type": "application/json" } ], "assets": { "1686306C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686306C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686312C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40027576775115, 30.838253901418923 ], [ -88.40027576775115, 30.854879977707274 ], [ -88.38100604732378, 30.854879977707274 ], [ -88.38100604732378, 30.838253901418923 ], [ -88.40027576775115, 30.838253901418923 ] ] ] }, "bbox": [ -88.40027576775115, 30.838253901418923, -88.38100604732378, 30.854879977707274 ], "properties": { "created": "2026-03-18 15:35:11.974449+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686312C.json", "type": "application/json" } ], "assets": { "1686312C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686312C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686318C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40042991395232, 30.854748456479772 ], [ -88.40042991395232, 30.871374575577335 ], [ -88.3811567967051, 30.871374575577335 ], [ -88.3811567967051, 30.854748456479772 ], [ -88.40042991395232, 30.854748456479772 ] ] ] }, "bbox": [ -88.40042991395232, 30.854748456479772, -88.3811567967051, 30.871374575577335 ], "properties": { "created": "2026-03-18 15:35:12.074720+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686318C.json", "type": "application/json" } ], "assets": { "1686318C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686318C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686324C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4005841872319, 30.871242968784973 ], [ -88.4005841872319, 30.887869130706857 ], [ -88.381307670379, 30.887869130706857 ], [ -88.381307670379, 30.871242968784973 ], [ -88.4005841872319, 30.871242968784973 ] ] ] }, "bbox": [ -88.4005841872319, 30.871242968784973, -88.381307670379, 30.887869130706857 ], "properties": { "created": "2026-03-18 15:35:12.210201+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686324C.json", "type": "application/json" } ], "assets": { "1686324C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686324C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686330C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40073858768042, 30.887737438320976 ], [ -88.40073858768042, 30.90436364308231 ], [ -88.38145866843398, 30.90436364308231 ], [ -88.38145866843398, 30.887737438320976 ], [ -88.40073858768042, 30.887737438320976 ] ] ] }, "bbox": [ -88.40073858768042, 30.887737438320976, -88.38145866843398, 30.90436364308231 ], "properties": { "created": "2026-03-18 15:35:12.326597+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686330C.json", "type": "application/json" } ], "assets": { "1686330C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686330C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686336C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4008931153885, 30.904231865074188 ], [ -88.4008931153885, 30.920858112690144 ], [ -88.38160979095862, 30.920858112690144 ], [ -88.38160979095862, 30.904231865074188 ], [ -88.4008931153885, 30.904231865074188 ] ] ] }, "bbox": [ -88.4008931153885, 30.904231865074188, -88.38160979095862, 30.920858112690144 ], "properties": { "created": "2026-03-18 15:35:12.430053+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686336C.json", "type": "application/json" } ], "assets": { "1686336C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686336C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686342C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4010477704469, 30.920726249031095 ], [ -88.4010477704469, 30.937352539516894 ], [ -88.38176103804165, 30.937352539516894 ], [ -88.38176103804165, 30.920726249031095 ], [ -88.4010477704469, 30.920726249031095 ] ] ] }, "bbox": [ -88.4010477704469, 30.920726249031095, -88.38176103804165, 30.937352539516894 ], "properties": { "created": "2026-03-18 15:35:12.598730+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686342C.json", "type": "application/json" } ], "assets": { "1686342C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686342C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686348C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40120255294642, 30.93722059017815 ], [ -88.40120255294642, 30.953846923549055 ], [ -88.38191240977187, 30.953846923549055 ], [ -88.38191240977187, 30.93722059017815 ], [ -88.40120255294642, 30.93722059017815 ] ] ] }, "bbox": [ -88.40120255294642, 30.93722059017815, -88.38191240977187, 30.953846923549055 ], "properties": { "created": "2026-03-18 15:35:12.742607+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686348C.json", "type": "application/json" } ], "assets": { "1686348C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686348C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686354C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40135746297805, 30.95371488850183 ], [ -88.40135746297805, 30.97034126477315 ], [ -88.3820639062382, 30.97034126477315 ], [ -88.3820639062382, 30.95371488850183 ], [ -88.40135746297805, 30.95371488850183 ] ] ] }, "bbox": [ -88.40135746297805, 30.95371488850183, -88.3820639062382, 30.97034126477315 ], "properties": { "created": "2026-03-18 15:35:12.941439+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686354C.json", "type": "application/json" } ], "assets": { "1686354C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686354C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686360C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40151250063286, 30.970209143988633 ], [ -88.40151250063286, 30.98683556317572 ], [ -88.38221552752968, 30.98683556317572 ], [ -88.38221552752968, 30.970209143988633 ], [ -88.40151250063286, 30.970209143988633 ] ] ] }, "bbox": [ -88.40151250063286, 30.970209143988633, -88.38221552752968, 30.98683556317572 ], "properties": { "created": "2026-03-18 15:35:13.146520+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686360C.json", "type": "application/json" } ], "assets": { "1686360C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686360C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686366C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40166766600203, 30.986703356625085 ], [ -88.40166766600203, 31.00332981874331 ], [ -88.38236727373543, 31.00332981874331 ], [ -88.38236727373543, 30.986703356625085 ], [ -88.40166766600203, 30.986703356625085 ] ] ] }, "bbox": [ -88.40166766600203, 30.986703356625085, -88.38236727373543, 31.00332981874331 ], "properties": { "created": "2026-03-18 15:35:13.312625+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686366C.json", "type": "application/json" } ], "assets": { "1686366C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686366C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40182295917685, 31.00319752639767 ], [ -88.40182295917685, 31.019824031462488 ], [ -88.3825191449447, 31.019824031462488 ], [ -88.3825191449447, 31.00319752639767 ], [ -88.40182295917685, 31.00319752639767 ] ] ] }, "bbox": [ -88.40182295917685, 31.00319752639767, -88.3825191449447, 31.019824031462488 ], "properties": { "created": "2026-03-18 15:35:13.430325+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686372C.json", "type": "application/json" } ], "assets": { "1686372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4019783802487, 31.019691653292945 ], [ -88.4019783802487, 31.036318201319837 ], [ -88.38267114124685, 31.036318201319837 ], [ -88.38267114124685, 31.019691653292945 ], [ -88.4019783802487, 31.019691653292945 ] ] ] }, "bbox": [ -88.4019783802487, 31.019691653292945, -88.38267114124685, 31.036318201319837 ], "properties": { "created": "2026-03-18 15:35:13.633628+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686378C.json", "type": "application/json" } ], "assets": { "1686378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40213392930912, 31.036185737297473 ], [ -88.40213392930912, 31.052812328301926 ], [ -88.38282326273134, 31.052812328301926 ], [ -88.38282326273134, 31.036185737297473 ], [ -88.40213392930912, 31.036185737297473 ] ] ] }, "bbox": [ -88.40213392930912, 31.036185737297473, -88.38282326273134, 31.052812328301926 ], "properties": { "created": "2026-03-18 15:35:13.838901+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686384C.json", "type": "application/json" } ], "assets": { "1686384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40228960644971, 31.052679778397806 ], [ -88.40228960644971, 31.069306412395374 ], [ -88.38297550948774, 31.069306412395374 ], [ -88.38297550948774, 31.052679778397806 ], [ -88.40228960644971, 31.052679778397806 ] ] ] }, "bbox": [ -88.40228960644971, 31.052679778397806, -88.38297550948774, 31.069306412395374 ], "properties": { "created": "2026-03-18 15:35:13.923997+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686390C.json", "type": "application/json" } ], "assets": { "1686390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40244541176223, 31.06917377658049 ], [ -88.40244541176223, 31.085800453586813 ], [ -88.38312788160572, 31.085800453586813 ], [ -88.38312788160572, 31.06917377658049 ], [ -88.40244541176223, 31.06917377658049 ] ] ] }, "bbox": [ -88.40244541176223, 31.06917377658049, -88.38312788160572, 31.085800453586813 ], "properties": { "created": "2026-03-18 15:35:14.071596+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686396C.json", "type": "application/json" } ], "assets": { "1686396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.40260134533851, 31.085667731832157 ], [ -88.40260134533851, 31.102294451862846 ], [ -88.38328037917509, 31.102294451862846 ], [ -88.38328037917509, 31.085667731832157 ], [ -88.40260134533851, 31.085667731832157 ] ] ] }, "bbox": [ -88.40260134533851, 31.085667731832157, -88.38328037917509, 31.102294451862846 ], "properties": { "created": "2026-03-18 15:35:14.176953+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686402C.json", "type": "application/json" } ], "assets": { "1686402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1686408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.4027574072705, 31.102161644139375 ], [ -88.4027574072705, 31.118788407210147 ], [ -88.38343300228574, 31.118788407210147 ], [ -88.38343300228574, 31.102161644139375 ], [ -88.4027574072705, 31.102161644139375 ] ] ] }, "bbox": [ -88.4027574072705, 31.102161644139375, -88.38343300228574, 31.118788407210147 ], "properties": { "created": "2026-03-18 15:35:14.299363+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1686408C.json", "type": "application/json" } ], "assets": { "1686408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1686408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1686000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37698247620781, 30.376518108638447 ], [ -88.37698247620781, 30.39314030576084 ], [ -88.35780981720158, 30.39314030576084 ], [ -88.35780981720158, 30.376518108638447 ], [ -88.37698247620781, 30.376518108638447 ] ] ] }, "bbox": [ -88.37698247620781, 30.376518108638447, -88.35780981720158, 30.39314030576084 ], "properties": { "created": "2026-03-18 15:35:14.410797+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692144C.json", "type": "application/json" } ], "assets": { "1692144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37712990274937, 30.393013940038387 ], [ -88.37712990274937, 30.409636177773283 ], [ -88.35795392667043, 30.409636177773283 ], [ -88.35795392667043, 30.393013940038387 ], [ -88.37712990274937, 30.393013940038387 ] ] ] }, "bbox": [ -88.37712990274937, 30.393013940038387, -88.35795392667043, 30.409636177773283 ], "properties": { "created": "2026-03-18 15:35:14.612291+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692150C.json", "type": "application/json" } ], "assets": { "1692150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37727745123442, 30.409509729095987 ], [ -88.37727745123442, 30.42613200745674 ], [ -88.35809815535447, 30.42613200745674 ], [ -88.35809815535447, 30.409509729095987 ], [ -88.37727745123442, 30.409509729095987 ] ] ] }, "bbox": [ -88.37727745123442, 30.409509729095987, -88.35809815535447, 30.42613200745674 ], "properties": { "created": "2026-03-18 15:35:14.810457+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692156C.json", "type": "application/json" } ], "assets": { "1692156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3774251217486, 30.42600547579735 ], [ -88.3774251217486, 30.442627794797342 ], [ -88.3582425033374, 30.442627794797342 ], [ -88.3582425033374, 30.42600547579735 ], [ -88.3774251217486, 30.42600547579735 ] ] ] }, "bbox": [ -88.3774251217486, 30.42600547579735, -88.3582425033374, 30.442627794797342 ], "properties": { "created": "2026-03-18 15:35:14.960625+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692162C.json", "type": "application/json" } ], "assets": { "1692162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37757291437764, 30.442501180128552 ], [ -88.37757291437764, 30.45912353978121 ], [ -88.35838697070298, 30.45912353978121 ], [ -88.35838697070298, 30.442501180128552 ], [ -88.37757291437764, 30.442501180128552 ] ] ] }, "bbox": [ -88.37757291437764, 30.442501180128552, -88.35838697070298, 30.45912353978121 ], "properties": { "created": "2026-03-18 15:35:15.067802+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692168C.json", "type": "application/json" } ], "assets": { "1692168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37772082920742, 30.4589968420757 ], [ -88.37772082920742, 30.475619242394522 ], [ -88.3585315575351, 30.475619242394522 ], [ -88.3585315575351, 30.4589968420757 ], [ -88.37772082920742, 30.4589968420757 ] ] ] }, "bbox": [ -88.37772082920742, 30.4589968420757, -88.3585315575351, 30.475619242394522 ], "properties": { "created": "2026-03-18 15:35:15.200279+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692174C.json", "type": "application/json" } ], "assets": { "1692174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37786886632387, 30.475492461624924 ], [ -88.37786886632387, 30.49211490262341 ], [ -88.35867626391776, 30.49211490262341 ], [ -88.35867626391776, 30.475492461624924 ], [ -88.37786886632387, 30.475492461624924 ] ] ] }, "bbox": [ -88.37786886632387, 30.475492461624924, -88.35867626391776, 30.49211490262341 ], "properties": { "created": "2026-03-18 15:35:15.323818+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692180C.json", "type": "application/json" } ], "assets": { "1692180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37801702581304, 30.491988038762347 ], [ -88.37801702581304, 30.508610520454063 ], [ -88.35882108993505, 30.508610520454063 ], [ -88.35882108993505, 30.491988038762347 ], [ -88.37801702581304, 30.491988038762347 ] ] ] }, "bbox": [ -88.37801702581304, 30.491988038762347, -88.35882108993505, 30.508610520454063 ], "properties": { "created": "2026-03-18 15:35:15.436706+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692186C.json", "type": "application/json" } ], "assets": { "1692186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37816530776111, 30.508483573474127 ], [ -88.37816530776111, 30.525106095872676 ], [ -88.35896603567114, 30.525106095872676 ], [ -88.35896603567114, 30.508483573474127 ], [ -88.37816530776111, 30.508483573474127 ] ] ] }, "bbox": [ -88.37816530776111, 30.508483573474127, -88.35896603567114, 30.525106095872676 ], "properties": { "created": "2026-03-18 15:35:15.552717+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692192C.json", "type": "application/json" } ], "assets": { "1692192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37831371225431, 30.524979065746425 ], [ -88.37831371225431, 30.54160162886544 ], [ -88.35911110121035, 30.54160162886544 ], [ -88.35911110121035, 30.524979065746425 ], [ -88.37831371225431, 30.524979065746425 ] ] ] }, "bbox": [ -88.37831371225431, 30.524979065746425, -88.35911110121035, 30.54160162886544 ], "properties": { "created": "2026-03-18 15:35:15.691017+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692198C.json", "type": "application/json" } ], "assets": { "1692198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37846223937905, 30.54147451556542 ], [ -88.37846223937905, 30.558097119418566 ], [ -88.35925628663705, 30.558097119418566 ], [ -88.35925628663705, 30.54147451556542 ], [ -88.37846223937905, 30.54147451556542 ] ] ] }, "bbox": [ -88.37846223937905, 30.54147451556542, -88.35925628663705, 30.558097119418566 ], "properties": { "created": "2026-03-18 15:35:15.828598+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692204C.json", "type": "application/json" } ], "assets": { "1692204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692210C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37861088922179, 30.55796992291727 ], [ -88.37861088922179, 30.5745925675183 ], [ -88.35940159203577, 30.5745925675183 ], [ -88.35940159203577, 30.55796992291727 ], [ -88.37861088922179, 30.55796992291727 ] ] ] }, "bbox": [ -88.37861088922179, 30.55796992291727, -88.35940159203577, 30.5745925675183 ], "properties": { "created": "2026-03-18 15:35:15.964613+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692210C.json", "type": "application/json" } ], "assets": { "1692210C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692210C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692216C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37875966186911, 30.574465287788218 ], [ -88.37875966186911, 30.59108797315087 ], [ -88.35954701749105, 30.59108797315087 ], [ -88.35954701749105, 30.574465287788218 ], [ -88.37875966186911, 30.574465287788218 ] ] ] }, "bbox": [ -88.37875966186911, 30.574465287788218, -88.35954701749105, 30.59108797315087 ], "properties": { "created": "2026-03-18 15:35:16.072676+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692216C.json", "type": "application/json" } ], "assets": { "1692216C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692216C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692222C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37890855740767, 30.59096061016444 ], [ -88.37890855740767, 30.607583336302536 ], [ -88.35969256308766, 30.607583336302536 ], [ -88.35969256308766, 30.59096061016444 ], [ -88.37890855740767, 30.59096061016444 ] ] ] }, "bbox": [ -88.37890855740767, 30.59096061016444, -88.35969256308766, 30.607583336302536 ], "properties": { "created": "2026-03-18 15:35:16.187024+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692222C.json", "type": "application/json" } ], "assets": { "1692222C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692222C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692228C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37905757592429, 30.607455890032192 ], [ -88.37905757592429, 30.624078656959576 ], [ -88.35983822891036, 30.624078656959576 ], [ -88.35983822891036, 30.607455890032192 ], [ -88.37905757592429, 30.607455890032192 ] ] ] }, "bbox": [ -88.37905757592429, 30.607455890032192, -88.35983822891036, 30.624078656959576 ], "properties": { "created": "2026-03-18 15:35:16.285005+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692228C.json", "type": "application/json" } ], "assets": { "1692228C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692228C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692234C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37920671750585, 30.62395112737772 ], [ -88.37920671750585, 30.640573935108257 ], [ -88.35998401504408, 30.640573935108257 ], [ -88.35998401504408, 30.62395112737772 ], [ -88.37920671750585, 30.62395112737772 ] ] ] }, "bbox": [ -88.37920671750585, 30.62395112737772, -88.35998401504408, 30.640573935108257 ], "properties": { "created": "2026-03-18 15:35:16.383704+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692234C.json", "type": "application/json" } ], "assets": { "1692234C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692234C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692240C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37935598223936, 30.640446322187255 ], [ -88.37935598223936, 30.657069170734882 ], [ -88.36012992157382, 30.657069170734882 ], [ -88.36012992157382, 30.640446322187255 ], [ -88.37935598223936, 30.640446322187255 ] ] ] }, "bbox": [ -88.37935598223936, 30.640446322187255, -88.36012992157382, 30.657069170734882 ], "properties": { "created": "2026-03-18 15:35:16.500053+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692240C.json", "type": "application/json" } ], "assets": { "1692240C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692240C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692246C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37950537021192, 30.656941474447073 ], [ -88.37950537021192, 30.673564363825758 ], [ -88.36027594858469, 30.673564363825758 ], [ -88.36027594858469, 30.656941474447073 ], [ -88.37950537021192, 30.656941474447073 ] ] ] }, "bbox": [ -88.37950537021192, 30.656941474447073, -88.36027594858469, 30.673564363825758 ], "properties": { "created": "2026-03-18 15:35:16.707669+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692246C.json", "type": "application/json" } ], "assets": { "1692246C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692246C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692252C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3796548815107, 30.673436584143477 ], [ -88.3796548815107, 30.69005951436722 ], [ -88.36042209616191, 30.69005951436722 ], [ -88.36042209616191, 30.673436584143477 ], [ -88.3796548815107, 30.673436584143477 ] ] ] }, "bbox": [ -88.3796548815107, 30.673436584143477, -88.36042209616191, 30.69005951436722 ], "properties": { "created": "2026-03-18 15:35:17.020698+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692252C.json", "type": "application/json" } ], "assets": { "1692252C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692252C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692258C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37980451622309, 30.689931651262725 ], [ -88.37980451622309, 30.706554622345596 ], [ -88.36056836439082, 30.706554622345596 ], [ -88.36056836439082, 30.689931651262725 ], [ -88.37980451622309, 30.689931651262725 ] ] ] }, "bbox": [ -88.37980451622309, 30.689931651262725, -88.36056836439082, 30.706554622345596 ], "properties": { "created": "2026-03-18 15:35:17.217527+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692258C.json", "type": "application/json" } ], "assets": { "1692258C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692258C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692264C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.37995427443647, 30.706426675791143 ], [ -88.37995427443647, 30.723049687747242 ], [ -88.36071475335682, 30.723049687747242 ], [ -88.36071475335682, 30.706426675791143 ], [ -88.37995427443647, 30.706426675791143 ] ] ] }, "bbox": [ -88.37995427443647, 30.706426675791143, -88.36071475335682, 30.723049687747242 ], "properties": { "created": "2026-03-18 15:35:17.385048+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692264C.json", "type": "application/json" } ], "assets": { "1692264C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692264C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692270B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38010415623837, 30.722921657715073 ], [ -88.38010415623837, 30.739544710558512 ], [ -88.36086126314542, 30.739544710558512 ], [ -88.36086126314542, 30.722921657715073 ], [ -88.38010415623837, 30.722921657715073 ] ] ] }, "bbox": [ -88.38010415623837, 30.722921657715073, -88.36086126314542, 30.739544710558512 ], "properties": { "created": "2026-03-18 15:35:17.512055+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692270B.json", "type": "application/json" } ], "assets": { "1692270B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692270B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692276B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38025416171644, 30.73941659702082 ], [ -88.38025416171644, 30.756039690765768 ], [ -88.36100789384231, 30.756039690765768 ], [ -88.36100789384231, 30.73941659702082 ], [ -88.38025416171644, 30.73941659702082 ] ] ] }, "bbox": [ -88.38025416171644, 30.73941659702082, -88.36100789384231, 30.756039690765768 ], "properties": { "created": "2026-03-18 15:35:17.628587+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692276B.json", "type": "application/json" } ], "assets": { "1692276B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692276B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692282B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3804042909584, 30.755911493694747 ], [ -88.3804042909584, 30.772534628355434 ], [ -88.36115464553318, 30.772534628355434 ], [ -88.36115464553318, 30.755911493694747 ], [ -88.3804042909584, 30.755911493694747 ] ] ] }, "bbox": [ -88.3804042909584, 30.755911493694747, -88.36115464553318, 30.772534628355434 ], "properties": { "created": "2026-03-18 15:35:17.733878+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692282B.json", "type": "application/json" } ], "assets": { "1692282B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692282B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692288B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3805545440521, 30.77240634772321 ], [ -88.3805545440521, 30.789029523313896 ], [ -88.36130151830388, 30.789029523313896 ], [ -88.36130151830388, 30.77240634772321 ], [ -88.3805545440521, 30.77240634772321 ] ] ] }, "bbox": [ -88.3805545440521, 30.77240634772321, -88.36130151830388, 30.789029523313896 ], "properties": { "created": "2026-03-18 15:35:17.829894+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692288B.json", "type": "application/json" } ], "assets": { "1692288B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692288B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692294B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38070492108551, 30.788901159092596 ], [ -88.38070492108551, 30.805524375627577 ], [ -88.36144851224034, 30.805524375627577 ], [ -88.36144851224034, 30.788901159092596 ], [ -88.38070492108551, 30.788901159092596 ] ] ] }, "bbox": [ -88.38070492108551, 30.788901159092596, -88.36144851224034, 30.805524375627577 ], "properties": { "created": "2026-03-18 15:35:17.953909+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692294B.json", "type": "application/json" } ], "assets": { "1692294B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692294B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692300B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38085542214668, 30.805395927789277 ], [ -88.38085542214668, 30.822019185282894 ], [ -88.36159562742863, 30.822019185282894 ], [ -88.36159562742863, 30.805395927789277 ], [ -88.38085542214668, 30.805395927789277 ] ] ] }, "bbox": [ -88.38085542214668, 30.805395927789277, -88.36159562742863, 30.822019185282894 ], "properties": { "created": "2026-03-18 15:35:18.053581+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692300B.json", "type": "application/json" } ], "assets": { "1692300B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692300B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692306B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38100604732378, 30.82189065379967 ], [ -88.38100604732378, 30.838513952266318 ], [ -88.36174286395489, 30.838513952266318 ], [ -88.36174286395489, 30.82189065379967 ], [ -88.38100604732378, 30.82189065379967 ] ] ] }, "bbox": [ -88.38100604732378, 30.82189065379967, -88.36174286395489, 30.838513952266318 ], "properties": { "created": "2026-03-18 15:35:18.182554+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692306B.json", "type": "application/json" } ], "assets": { "1692306B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692306B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692312B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3811567967051, 30.8383853371102 ], [ -88.3811567967051, 30.855008676564275 ], [ -88.36189022190538, 30.855008676564275 ], [ -88.36189022190538, 30.8383853371102 ], [ -88.3811567967051, 30.8383853371102 ] ] ] }, "bbox": [ -88.3811567967051, 30.8383853371102, -88.36189022190538, 30.855008676564275 ], "properties": { "created": "2026-03-18 15:35:18.283060+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692312B.json", "type": "application/json" } ], "assets": { "1692312B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692312B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692318B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.381307670379, 30.854879977707274 ], [ -88.381307670379, 30.871503358163245 ], [ -88.36203770136646, 30.871503358163245 ], [ -88.36203770136646, 30.854879977707274 ], [ -88.381307670379, 30.854879977707274 ] ] ] }, "bbox": [ -88.381307670379, 30.854879977707274, -88.36203770136646, 30.871503358163245 ], "properties": { "created": "2026-03-18 15:35:18.345696+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692318B.json", "type": "application/json" } ], "assets": { "1692318B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692318B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692324B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38145866843398, 30.871374575577335 ], [ -88.38145866843398, 30.887997997049734 ], [ -88.3621853024246, 30.887997997049734 ], [ -88.3621853024246, 30.871374575577335 ], [ -88.38145866843398, 30.871374575577335 ] ] ] }, "bbox": [ -88.38145866843398, 30.871374575577335, -88.3621853024246, 30.887997997049734 ], "properties": { "created": "2026-03-18 15:35:18.530526+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692324B.json", "type": "application/json" } ], "assets": { "1692324B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692324B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692330B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38160979095862, 30.887869130706857 ], [ -88.38160979095862, 30.90449259321023 ], [ -88.36233302516636, 30.90449259321023 ], [ -88.36233302516636, 30.887869130706857 ], [ -88.38160979095862, 30.887869130706857 ] ] ] }, "bbox": [ -88.38160979095862, 30.887869130706857, -88.36233302516636, 30.90449259321023 ], "properties": { "created": "2026-03-18 15:35:18.733372+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692330B.json", "type": "application/json" } ], "assets": { "1692330B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692330B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692336C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38176103804165, 30.90436364308231 ], [ -88.38176103804165, 30.92098714663122 ], [ -88.36248086967845, 30.92098714663122 ], [ -88.36248086967845, 30.90436364308231 ], [ -88.38176103804165, 30.90436364308231 ] ] ] }, "bbox": [ -88.38176103804165, 30.90436364308231, -88.36248086967845, 30.92098714663122 ], "properties": { "created": "2026-03-18 15:35:18.876897+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692336C.json", "type": "application/json" } ], "assets": { "1692336C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692336C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692342C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38191240977187, 30.920858112690144 ], [ -88.38191240977187, 30.937481657299255 ], [ -88.3626288360476, 30.937481657299255 ], [ -88.3626288360476, 30.920858112690144 ], [ -88.38191240977187, 30.920858112690144 ] ] ] }, "bbox": [ -88.38191240977187, 30.920858112690144, -88.3626288360476, 30.937481657299255 ], "properties": { "created": "2026-03-18 15:35:19.059973+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692342C.json", "type": "application/json" } ], "assets": { "1692342C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692342C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692348C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3820639062382, 30.937352539516894 ], [ -88.3820639062382, 30.953976125200853 ], [ -88.36277692436074, 30.953976125200853 ], [ -88.36277692436074, 30.937352539516894 ], [ -88.3820639062382, 30.937352539516894 ] ] ] }, "bbox": [ -88.3820639062382, 30.937352539516894, -88.36277692436074, 30.953976125200853 ], "properties": { "created": "2026-03-18 15:35:19.159443+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692348C.json", "type": "application/json" } ], "assets": { "1692348C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692348C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692354C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38221552752968, 30.953846923549055 ], [ -88.38221552752968, 30.970470550322595 ], [ -88.36292513470487, 30.970470550322595 ], [ -88.36292513470487, 30.953846923549055 ], [ -88.38221552752968, 30.953846923549055 ] ] ] }, "bbox": [ -88.38221552752968, 30.953846923549055, -88.36292513470487, 30.970470550322595 ], "properties": { "created": "2026-03-18 15:35:19.245924+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692354C.json", "type": "application/json" } ], "assets": { "1692354C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692354C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692360C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38236727373543, 30.97034126477315 ], [ -88.38236727373543, 30.986964932651027 ], [ -88.36307346716704, 30.986964932651027 ], [ -88.36307346716704, 30.97034126477315 ], [ -88.38236727373543, 30.97034126477315 ] ] ] }, "bbox": [ -88.38236727373543, 30.97034126477315, -88.36307346716704, 30.986964932651027 ], "properties": { "created": "2026-03-18 15:35:19.341860+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692360C.json", "type": "application/json" } ], "assets": { "1692360C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692360C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692366C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3825191449447, 30.98683556317572 ], [ -88.3825191449447, 31.003459272172716 ], [ -88.36322192183448, 31.003459272172716 ], [ -88.36322192183448, 30.98683556317572 ], [ -88.3825191449447, 30.98683556317572 ] ] ] }, "bbox": [ -88.3825191449447, 30.98683556317572, -88.36322192183448, 31.003459272172716 ], "properties": { "created": "2026-03-18 15:35:19.472042+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692366C.json", "type": "application/json" } ], "assets": { "1692366C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692366C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38267114124685, 31.00332981874331 ], [ -88.38267114124685, 31.019953568874286 ], [ -88.3633704987945, 31.019953568874286 ], [ -88.3633704987945, 31.00332981874331 ], [ -88.38267114124685, 31.00332981874331 ] ] ] }, "bbox": [ -88.38267114124685, 31.00332981874331, -88.3633704987945, 31.019953568874286 ], "properties": { "created": "2026-03-18 15:35:19.573643+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692372C.json", "type": "application/json" } ], "assets": { "1692372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38282326273134, 31.019824031462488 ], [ -88.38282326273134, 31.03644782274232 ], [ -88.36351919813453, 31.03644782274232 ], [ -88.36351919813453, 31.019824031462488 ], [ -88.38282326273134, 31.019824031462488 ] ] ] }, "bbox": [ -88.38282326273134, 31.019824031462488, -88.36351919813453, 31.03644782274232 ], "properties": { "created": "2026-03-18 15:35:19.676041+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692378C.json", "type": "application/json" } ], "assets": { "1692378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38297550948774, 31.036318201319837 ], [ -88.38297550948774, 31.052942033763447 ], [ -88.36366801994208, 31.052942033763447 ], [ -88.36366801994208, 31.036318201319837 ], [ -88.38297550948774, 31.036318201319837 ] ] ] }, "bbox": [ -88.38297550948774, 31.036318201319837, -88.36366801994208, 31.052942033763447 ], "properties": { "created": "2026-03-18 15:35:19.835889+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692384C.json", "type": "application/json" } ], "assets": { "1692384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38312788160572, 31.052812328301926 ], [ -88.38312788160572, 31.069436201924297 ], [ -88.36381696430477, 31.069436201924297 ], [ -88.36381696430477, 31.052812328301926 ], [ -88.38312788160572, 31.052812328301926 ] ] ] }, "bbox": [ -88.38312788160572, 31.052812328301926, -88.36381696430477, 31.069436201924297 ], "properties": { "created": "2026-03-18 15:35:19.955290+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692390C.json", "type": "application/json" } ], "assets": { "1692390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38328037917509, 31.069306412395374 ], [ -88.38328037917509, 31.08593032721151 ], [ -88.36396603131037, 31.08593032721151 ], [ -88.36396603131037, 31.069306412395374 ], [ -88.38328037917509, 31.069306412395374 ] ] ] }, "bbox": [ -88.38328037917509, 31.069306412395374, -88.36396603131037, 31.08593032721151 ], "properties": { "created": "2026-03-18 15:35:20.144626+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692396C.json", "type": "application/json" } ], "assets": { "1692396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38343300228574, 31.085800453586813 ], [ -88.38343300228574, 31.102424409611753 ], [ -88.36411522104669, 31.102424409611753 ], [ -88.36411522104669, 31.085800453586813 ], [ -88.38343300228574, 31.085800453586813 ] ] ] }, "bbox": [ -88.38343300228574, 31.085800453586813, -88.36411522104669, 31.102424409611753 ], "properties": { "created": "2026-03-18 15:35:20.215977+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692402C.json", "type": "application/json" } ], "assets": { "1692402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1692408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.38358575102767, 31.102294451862846 ], [ -88.38358575102767, 31.118918449111693 ], [ -88.3642645336017, 31.118918449111693 ], [ -88.3642645336017, 31.102294451862846 ], [ -88.38358575102767, 31.102294451862846 ] ] ] }, "bbox": [ -88.38358575102767, 31.102294451862846, -88.3642645336017, 31.118918449111693 ], "properties": { "created": "2026-03-18 15:35:20.352591+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1692408C.json", "type": "application/json" } ], "assets": { "1692408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1692408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1692000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35795392667043, 30.376644391433327 ], [ -88.35795392667043, 30.393263900209917 ], [ -88.33878434374735, 30.393263900209917 ], [ -88.33878434374735, 30.376644391433327 ], [ -88.35795392667043, 30.376644391433327 ] ] ] }, "bbox": [ -88.35795392667043, 30.376644391433327, -88.33878434374735, 30.393263900209917 ], "properties": { "created": "2026-03-18 15:35:20.537708+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698144C.json", "type": "application/json" } ], "assets": { "1698144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35809815535447, 30.39314030576084 ], [ -88.35809815535447, 30.40975985335814 ], [ -88.33892525791786, 30.40975985335814 ], [ -88.33892525791786, 30.39314030576084 ], [ -88.35809815535447, 30.39314030576084 ] ] ] }, "bbox": [ -88.35809815535447, 30.39314030576084, -88.33892525791786, 30.40975985335814 ], "properties": { "created": "2026-03-18 15:35:20.719933+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698150C.json", "type": "application/json" } ], "assets": { "1698150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3582425033374, 30.409636177773283 ], [ -88.3582425033374, 30.426255764204058 ], [ -88.3390662886607, 30.426255764204058 ], [ -88.3390662886607, 30.409636177773283 ], [ -88.3582425033374, 30.409636177773283 ] ] ] }, "bbox": [ -88.3582425033374, 30.409636177773283, -88.3390662886607, 30.426255764204058 ], "properties": { "created": "2026-03-18 15:35:21.005537+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698156C.json", "type": "application/json" } ], "assets": { "1698156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35838697070298, 30.42613200745674 ], [ -88.35838697070298, 30.44275163273382 ], [ -88.33920743605772, 30.44275163273382 ], [ -88.33920743605772, 30.42613200745674 ], [ -88.35838697070298, 30.42613200745674 ] ] ] }, "bbox": [ -88.35838697070298, 30.42613200745674, -88.33920743605772, 30.44275163273382 ], "properties": { "created": "2026-03-18 15:35:21.232642+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698162C.json", "type": "application/json" } ], "assets": { "1698162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3585315575351, 30.442627794797342 ], [ -88.3585315575351, 30.45924745893359 ], [ -88.33934870019081, 30.45924745893359 ], [ -88.33934870019081, 30.442627794797342 ], [ -88.3585315575351, 30.442627794797342 ] ] ] }, "bbox": [ -88.3585315575351, 30.442627794797342, -88.33934870019081, 30.45924745893359 ], "properties": { "created": "2026-03-18 15:35:21.345575+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698168C.json", "type": "application/json" } ], "assets": { "1698168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35867626391776, 30.45912353978121 ], [ -88.35867626391776, 30.47574324278954 ], [ -88.33949008114205, 30.47574324278954 ], [ -88.33949008114205, 30.45912353978121 ], [ -88.35867626391776, 30.45912353978121 ] ] ] }, "bbox": [ -88.35867626391776, 30.45912353978121, -88.33949008114205, 30.47574324278954 ], "properties": { "created": "2026-03-18 15:35:21.510610+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698174C.json", "type": "application/json" } ], "assets": { "1698174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35882108993505, 30.475619242394522 ], [ -88.35882108993505, 30.492238984287848 ], [ -88.33963157899349, 30.492238984287848 ], [ -88.33963157899349, 30.475619242394522 ], [ -88.35882108993505, 30.475619242394522 ] ] ] }, "bbox": [ -88.35882108993505, 30.475619242394522, -88.33963157899349, 30.492238984287848 ], "properties": { "created": "2026-03-18 15:35:21.648251+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698180C.json", "type": "application/json" } ], "assets": { "1698180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35896603567114, 30.49211490262341 ], [ -88.35896603567114, 30.508734683414744 ], [ -88.33977319382744, 30.508734683414744 ], [ -88.33977319382744, 30.49211490262341 ], [ -88.35896603567114, 30.49211490262341 ] ] ] }, "bbox": [ -88.35896603567114, 30.49211490262341, -88.33977319382744, 30.508734683414744 ], "properties": { "created": "2026-03-18 15:35:21.759653+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698186C.json", "type": "application/json" } ], "assets": { "1698186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35911110121035, 30.508610520454063 ], [ -88.35911110121035, 30.52523034015642 ], [ -88.33991492572616, 30.52523034015642 ], [ -88.33991492572616, 30.508610520454063 ], [ -88.35911110121035, 30.508610520454063 ] ] ] }, "bbox": [ -88.35911110121035, 30.508610520454063, -88.33991492572616, 30.52523034015642 ], "properties": { "created": "2026-03-18 15:35:21.883431+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698192C.json", "type": "application/json" } ], "assets": { "1698192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35925628663705, 30.525106095872676 ], [ -88.35925628663705, 30.541725954499125 ], [ -88.34005677477212, 30.541725954499125 ], [ -88.34005677477212, 30.525106095872676 ], [ -88.35925628663705, 30.525106095872676 ] ] ] }, "bbox": [ -88.35925628663705, 30.525106095872676, -88.34005677477212, 30.541725954499125 ], "properties": { "created": "2026-03-18 15:35:21.978967+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698198C.json", "type": "application/json" } ], "assets": { "1698198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35940159203577, 30.54160162886544 ], [ -88.35940159203577, 30.558221526429083 ], [ -88.34019874104781, 30.558221526429083 ], [ -88.34019874104781, 30.54160162886544 ], [ -88.35940159203577, 30.54160162886544 ] ] ] }, "bbox": [ -88.35940159203577, 30.54160162886544, -88.34019874104781, 30.558221526429083 ], "properties": { "created": "2026-03-18 15:35:22.063951+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698204C.json", "type": "application/json" } ], "assets": { "1698204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698210C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35954701749105, 30.558097119418566 ], [ -88.35954701749105, 30.574717055932556 ], [ -88.34034082463589, 30.574717055932556 ], [ -88.34034082463589, 30.558097119418566 ], [ -88.35954701749105, 30.558097119418566 ] ] ] }, "bbox": [ -88.35954701749105, 30.558097119418566, -88.34034082463589, 30.574717055932556 ], "properties": { "created": "2026-03-18 15:35:22.185390+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698210C.json", "type": "application/json" } ], "assets": { "1698210C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698210C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698216C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35969256308766, 30.5745925675183 ], [ -88.35969256308766, 30.591212542995805 ], [ -88.34048302561904, 30.591212542995805 ], [ -88.34048302561904, 30.5745925675183 ], [ -88.35969256308766, 30.5745925675183 ] ] ] }, "bbox": [ -88.35969256308766, 30.5745925675183, -88.34048302561904, 30.591212542995805 ], "properties": { "created": "2026-03-18 15:35:22.303620+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698216C.json", "type": "application/json" } ], "assets": { "1698216C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698216C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698222C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35983822891036, 30.59108797315087 ], [ -88.35983822891036, 30.607707987605124 ], [ -88.34062534408014, 30.607707987605124 ], [ -88.34062534408014, 30.59108797315087 ], [ -88.35983822891036, 30.59108797315087 ] ] ] }, "bbox": [ -88.35983822891036, 30.59108797315087, -88.34062534408014, 30.607707987605124 ], "properties": { "created": "2026-03-18 15:35:22.391851+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698222C.json", "type": "application/json" } ], "assets": { "1698222C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698222C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698228C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.35998401504408, 30.607583336302536 ], [ -88.35998401504408, 30.624203389746825 ], [ -88.34076778010206, 30.624203389746825 ], [ -88.34076778010206, 30.607583336302536 ], [ -88.35998401504408, 30.607583336302536 ] ] ] }, "bbox": [ -88.35998401504408, 30.607583336302536, -88.34076778010206, 30.624203389746825 ], "properties": { "created": "2026-03-18 15:35:22.638818+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698228C.json", "type": "application/json" } ], "assets": { "1698228C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698228C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698234C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36012992157382, 30.624078656959576 ], [ -88.36012992157382, 30.640698749407182 ], [ -88.34091033376785, 30.640698749407182 ], [ -88.34091033376785, 30.624078656959576 ], [ -88.36012992157382, 30.624078656959576 ] ] ] }, "bbox": [ -88.36012992157382, 30.624078656959576, -88.34091033376785, 30.640698749407182 ], "properties": { "created": "2026-03-18 15:35:22.854325+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698234C.json", "type": "application/json" } ], "assets": { "1698234C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698234C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698240C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36027594858469, 30.640573935108257 ], [ -88.36027594858469, 30.65719406657254 ], [ -88.34105300516066, 30.65719406657254 ], [ -88.34105300516066, 30.640573935108257 ], [ -88.36027594858469, 30.640573935108257 ] ] ] }, "bbox": [ -88.36027594858469, 30.640573935108257, -88.34105300516066, 30.65719406657254 ], "properties": { "created": "2026-03-18 15:35:22.966272+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698240C.json", "type": "application/json" } ], "assets": { "1698240C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698240C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698246C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36042209616191, 30.657069170734882 ], [ -88.36042209616191, 30.673689341229238 ], [ -88.34119579436368, 30.673689341229238 ], [ -88.34119579436368, 30.657069170734882 ], [ -88.36042209616191, 30.657069170734882 ] ] ] }, "bbox": [ -88.36042209616191, 30.657069170734882, -88.34119579436368, 30.673689341229238 ], "properties": { "created": "2026-03-18 15:35:23.101825+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698246C.json", "type": "application/json" } ], "assets": { "1698246C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698246C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698252C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36056836439082, 30.673564363825758 ], [ -88.36056836439082, 30.690184573363627 ], [ -88.34133870146026, 30.690184573363627 ], [ -88.34133870146026, 30.673564363825758 ], [ -88.36056836439082, 30.673564363825758 ] ] ] }, "bbox": [ -88.36056836439082, 30.673564363825758, -88.34133870146026, 30.690184573363627 ], "properties": { "created": "2026-03-18 15:35:23.227552+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698252C.json", "type": "application/json" } ], "assets": { "1698252C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698252C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698258C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36071475335682, 30.69005951436722 ], [ -88.36071475335682, 30.70667976296205 ], [ -88.34148172653383, 30.70667976296205 ], [ -88.34148172653383, 30.69005951436722 ], [ -88.36071475335682, 30.69005951436722 ] ] ] }, "bbox": [ -88.36071475335682, 30.69005951436722, -88.34148172653383, 30.70667976296205 ], "properties": { "created": "2026-03-18 15:35:23.313752+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698258C.json", "type": "application/json" } ], "assets": { "1698258C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698258C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698264B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36086126314542, 30.706554622345596 ], [ -88.36086126314542, 30.723174910010915 ], [ -88.34162486966792, 30.723174910010915 ], [ -88.34162486966792, 30.706554622345596 ], [ -88.36086126314542, 30.706554622345596 ] ] ] }, "bbox": [ -88.36086126314542, 30.706554622345596, -88.34162486966792, 30.723174910010915 ], "properties": { "created": "2026-03-18 15:35:23.434794+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698264B.json", "type": "application/json" } ], "assets": { "1698264B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698264B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698276B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36115464553318, 30.739544710558512 ], [ -88.36115464553318, 30.75616507640547 ], [ -88.34191151045228, 30.75616507640547 ], [ -88.34191151045228, 30.739544710558512 ], [ -88.36115464553318, 30.739544710558512 ] ] ] }, "bbox": [ -88.36115464553318, 30.739544710558512, -88.34191151045228, 30.75616507640547 ], "properties": { "created": "2026-03-18 15:35:23.564628+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698276B.json", "type": "application/json" } ], "assets": { "1698276B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698276B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698282B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36130151830388, 30.756039690765768 ], [ -88.36130151830388, 30.772660095723992 ], [ -88.3420550082701, 30.772660095723992 ], [ -88.3420550082701, 30.756039690765768 ], [ -88.36130151830388, 30.756039690765768 ] ] ] }, "bbox": [ -88.36130151830388, 30.756039690765768, -88.3420550082701, 30.772660095723992 ], "properties": { "created": "2026-03-18 15:35:23.732432+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698282B.json", "type": "application/json" } ], "assets": { "1698282B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698282B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698288B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36144851224034, 30.772534628355434 ], [ -88.36144851224034, 30.7891550724386 ], [ -88.34219862448359, 30.7891550724386 ], [ -88.34219862448359, 30.772534628355434 ], [ -88.36144851224034, 30.772534628355434 ] ] ] }, "bbox": [ -88.36144851224034, 30.772534628355434, -88.34219862448359, 30.7891550724386 ], "properties": { "created": "2026-03-18 15:35:23.835595+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698288B.json", "type": "application/json" } ], "assets": { "1698288B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698288B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698294B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36159562742863, 30.789029523313896 ], [ -88.36159562742863, 30.805650006535714 ], [ -88.34234235917677, 30.805650006535714 ], [ -88.34234235917677, 30.789029523313896 ], [ -88.36159562742863, 30.789029523313896 ] ] ] }, "bbox": [ -88.36159562742863, 30.789029523313896, -88.34234235917677, 30.805650006535714 ], "properties": { "created": "2026-03-18 15:35:23.925936+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698294B.json", "type": "application/json" } ], "assets": { "1698294B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698294B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698300B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36174286395489, 30.805524375627577 ], [ -88.36174286395489, 30.8221448980018 ], [ -88.34248621243378, 30.8221448980018 ], [ -88.34248621243378, 30.805524375627577 ], [ -88.36174286395489, 30.805524375627577 ] ] ] }, "bbox": [ -88.36174286395489, 30.805524375627577, -88.34248621243378, 30.8221448980018 ], "properties": { "created": "2026-03-18 15:35:24.027140+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698300B.json", "type": "application/json" } ], "assets": { "1698300B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698300B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698306B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36189022190538, 30.822019185282894 ], [ -88.36189022190538, 30.838639746823333 ], [ -88.34263018433887, 30.838639746823333 ], [ -88.34263018433887, 30.822019185282894 ], [ -88.36189022190538, 30.822019185282894 ] ] ] }, "bbox": [ -88.36189022190538, 30.822019185282894, -88.34263018433887, 30.838639746823333 ], "properties": { "created": "2026-03-18 15:35:24.117987+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698306B.json", "type": "application/json" } ], "assets": { "1698306B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698306B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698312B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36203770136646, 30.838513952266318 ], [ -88.36203770136646, 30.85513455298678 ], [ -88.34277427497639, 30.85513455298678 ], [ -88.34277427497639, 30.838513952266318 ], [ -88.36203770136646, 30.838513952266318 ] ] ] }, "bbox": [ -88.36203770136646, 30.838513952266318, -88.34277427497639, 30.85513455298678 ], "properties": { "created": "2026-03-18 15:35:24.246283+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698312B.json", "type": "application/json" } ], "assets": { "1698312B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698312B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698318B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3621853024246, 30.855008676564275 ], [ -88.3621853024246, 30.871629316478668 ], [ -88.3429184844308, 30.871629316478668 ], [ -88.3429184844308, 30.855008676564275 ], [ -88.3621853024246, 30.855008676564275 ] ] ] }, "bbox": [ -88.3621853024246, 30.855008676564275, -88.3429184844308, 30.871629316478668 ], "properties": { "created": "2026-03-18 15:35:24.376218+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698318B.json", "type": "application/json" } ], "assets": { "1698318B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698318B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698324B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36233302516636, 30.871503358163245 ], [ -88.36233302516636, 30.888124037285497 ], [ -88.3430628127866, 30.888124037285497 ], [ -88.3430628127866, 30.871503358163245 ], [ -88.36233302516636, 30.871503358163245 ] ] ] }, "bbox": [ -88.36233302516636, 30.871503358163245, -88.3430628127866, 30.888124037285497 ], "properties": { "created": "2026-03-18 15:35:24.538305+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698324B.json", "type": "application/json" } ], "assets": { "1698324B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698324B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698330B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36248086967845, 30.887997997049734 ], [ -88.36248086967845, 30.904618715393784 ], [ -88.34320726012848, 30.904618715393784 ], [ -88.34320726012848, 30.887997997049734 ], [ -88.36248086967845, 30.887997997049734 ] ] ] }, "bbox": [ -88.36248086967845, 30.887997997049734, -88.34320726012848, 30.904618715393784 ], "properties": { "created": "2026-03-18 15:35:24.718041+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698330B.json", "type": "application/json" } ], "assets": { "1698330B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698330B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698336B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3626288360476, 30.90449259321023 ], [ -88.3626288360476, 30.921113350790076 ], [ -88.34335182654121, 30.921113350790076 ], [ -88.34335182654121, 30.90449259321023 ], [ -88.3626288360476, 30.90449259321023 ] ] ] }, "bbox": [ -88.3626288360476, 30.90449259321023, -88.34335182654121, 30.921113350790076 ], "properties": { "created": "2026-03-18 15:35:24.929773+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698336B.json", "type": "application/json" } ], "assets": { "1698336B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698336B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698342B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36277692436074, 30.92098714663122 ], [ -88.36277692436074, 30.937607943460925 ], [ -88.34349651210961, 30.937607943460925 ], [ -88.34349651210961, 30.92098714663122 ], [ -88.36277692436074, 30.92098714663122 ] ] ] }, "bbox": [ -88.36277692436074, 30.92098714663122, -88.34349651210961, 30.937607943460925 ], "properties": { "created": "2026-03-18 15:35:25.061354+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698342B.json", "type": "application/json" } ], "assets": { "1698342B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698342B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698348B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36292513470487, 30.937481657299255 ], [ -88.36292513470487, 30.954102493392895 ], [ -88.34364131691868, 30.954102493392895 ], [ -88.34364131691868, 30.937481657299255 ], [ -88.36292513470487, 30.937481657299255 ] ] ] }, "bbox": [ -88.36292513470487, 30.937481657299255, -88.34364131691868, 30.954102493392895 ], "properties": { "created": "2026-03-18 15:35:25.124633+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698348B.json", "type": "application/json" } ], "assets": { "1698348B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698348B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698354B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36307346716704, 30.953976125200853 ], [ -88.36307346716704, 30.97059700057256 ], [ -88.34378624105346, 30.97059700057256 ], [ -88.34378624105346, 30.953976125200853 ], [ -88.36307346716704, 30.953976125200853 ] ] ] }, "bbox": [ -88.36307346716704, 30.953976125200853, -88.34378624105346, 30.97059700057256 ], "properties": { "created": "2026-03-18 15:35:25.187393+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698354B.json", "type": "application/json" } ], "assets": { "1698354B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698354B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698360C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36322192183448, 30.970470550322595 ], [ -88.36322192183448, 30.98709146498654 ], [ -88.34393128459914, 30.98709146498654 ], [ -88.34393128459914, 30.970470550322595 ], [ -88.36322192183448, 30.970470550322595 ] ] ] }, "bbox": [ -88.36322192183448, 30.970470550322595, -88.34393128459914, 30.98709146498654 ], "properties": { "created": "2026-03-18 15:35:25.284981+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698360C.json", "type": "application/json" } ], "assets": { "1698360C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698360C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698366C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3633704987945, 30.986964932651027 ], [ -88.3633704987945, 31.003585886621412 ], [ -88.34407644764096, 31.003585886621412 ], [ -88.34407644764096, 30.986964932651027 ], [ -88.3633704987945, 30.986964932651027 ] ] ] }, "bbox": [ -88.3633704987945, 30.986964932651027, -88.34407644764096, 31.003585886621412 ], "properties": { "created": "2026-03-18 15:35:25.410882+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698366C.json", "type": "application/json" } ], "assets": { "1698366C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698366C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36351919813453, 31.003459272172716 ], [ -88.36351919813453, 31.020080265463797 ], [ -88.34422173026434, 31.020080265463797 ], [ -88.34422173026434, 31.003459272172716 ], [ -88.36351919813453, 31.003459272172716 ] ] ] }, "bbox": [ -88.36351919813453, 31.003459272172716, -88.34422173026434, 31.020080265463797 ], "properties": { "created": "2026-03-18 15:35:25.508674+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698372C.json", "type": "application/json" } ], "assets": { "1698372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36366801994208, 31.019953568874286 ], [ -88.36366801994208, 31.036574601500348 ], [ -88.34436713255471, 31.036574601500348 ], [ -88.34436713255471, 31.019953568874286 ], [ -88.36366801994208, 31.019953568874286 ] ] ] }, "bbox": [ -88.36366801994208, 31.019953568874286, -88.34436713255471, 31.036574601500348 ], "properties": { "created": "2026-03-18 15:35:25.686791+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698378C.json", "type": "application/json" } ], "assets": { "1698378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36381696430477, 31.03644782274232 ], [ -88.36381696430477, 31.0530688947177 ], [ -88.3445126545977, 31.0530688947177 ], [ -88.3445126545977, 31.03644782274232 ], [ -88.36381696430477, 31.03644782274232 ] ] ] }, "bbox": [ -88.36381696430477, 31.03644782274232, -88.3445126545977, 31.0530688947177 ], "properties": { "created": "2026-03-18 15:35:25.785957+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698384C.json", "type": "application/json" } ], "assets": { "1698384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36396603131037, 31.052942033763447 ], [ -88.36396603131037, 31.069563145102514 ], [ -88.34465829647897, 31.069563145102514 ], [ -88.34465829647897, 31.052942033763447 ], [ -88.36396603131037, 31.052942033763447 ] ] ] }, "bbox": [ -88.36396603131037, 31.052942033763447, -88.34465829647897, 31.069563145102514 ], "properties": { "created": "2026-03-18 15:35:25.948518+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698390C.json", "type": "application/json" } ], "assets": { "1698390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36411522104669, 31.069436201924297 ], [ -88.36411522104669, 31.086057352641475 ], [ -88.3448040582843, 31.086057352641475 ], [ -88.3448040582843, 31.069436201924297 ], [ -88.36411522104669, 31.069436201924297 ] ] ] }, "bbox": [ -88.36411522104669, 31.069436201924297, -88.3448040582843, 31.086057352641475 ], "properties": { "created": "2026-03-18 15:35:26.060861+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698396C.json", "type": "application/json" } ], "assets": { "1698396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3642645336017, 31.08593032721151 ], [ -88.3642645336017, 31.10255151732125 ], [ -88.34494994009962, 31.10255151732125 ], [ -88.34494994009962, 31.08593032721151 ], [ -88.3642645336017, 31.08593032721151 ] ] ] }, "bbox": [ -88.3642645336017, 31.08593032721151, -88.34494994009962, 31.10255151732125 ], "properties": { "created": "2026-03-18 15:35:26.176982+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698402C.json", "type": "application/json" } ], "assets": { "1698402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1698408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.36441396906343, 31.102424409611753 ], [ -88.36441396906343, 31.119045639128544 ], [ -88.34509594201093, 31.119045639128544 ], [ -88.34509594201093, 31.102424409611753 ], [ -88.36441396906343, 31.102424409611753 ] ] ] }, "bbox": [ -88.36441396906343, 31.102424409611753, -88.34509594201093, 31.119045639128544 ], "properties": { "created": "2026-03-18 15:35:26.295676+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1698408C.json", "type": "application/json" } ], "assets": { "1698408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1698408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1698000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704084C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33752134851515, 30.211805627602207 ], [ -88.33752134851515, 30.228422076533978 ], [ -88.31838781448874, 30.228422076533978 ], [ -88.31838781448874, 30.211805627602207 ], [ -88.33752134851515, 30.211805627602207 ] ] ] }, "bbox": [ -88.33752134851515, 30.211805627602207, -88.31838781448874, 30.228422076533978 ], "properties": { "created": "2026-03-18 15:35:26.408767+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704084C.json", "type": "application/json" } ], "assets": { "1704084C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704084C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 84000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704090C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33766121720062, 30.22830204515777 ], [ -88.33766121720062, 30.244918530997843 ], [ -88.31852439836275, 30.244918530997843 ], [ -88.31852439836275, 30.22830204515777 ], [ -88.33766121720062, 30.22830204515777 ] ] ] }, "bbox": [ -88.33766121720062, 30.22830204515777, -88.31852439836275, 30.244918530997843 ], "properties": { "created": "2026-03-18 15:35:26.529964+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704090C.json", "type": "application/json" } ], "assets": { "1704090C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704090C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 90000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33892525791786, 30.376767904773263 ], [ -88.33892525791786, 30.393384723324527 ], [ -88.31975875380255, 30.393384723324527 ], [ -88.31975875380255, 30.376767904773263 ], [ -88.33892525791786, 30.376767904773263 ] ] ] }, "bbox": [ -88.33892525791786, 30.376767904773263, -88.31975875380255, 30.393384723324527 ], "properties": { "created": "2026-03-18 15:35:26.628986+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704144C.json", "type": "application/json" } ], "assets": { "1704144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3390662886607, 30.393263900209917 ], [ -88.3390662886607, 30.409880755789434 ], [ -88.31989647259299, 30.409880755789434 ], [ -88.31989647259299, 30.393263900209917 ], [ -88.3390662886607, 30.393263900209917 ] ] ] }, "bbox": [ -88.3390662886607, 30.393263900209917, -88.31989647259299, 30.409880755789434 ], "properties": { "created": "2026-03-18 15:35:26.815866+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704150C.json", "type": "application/json" } ], "assets": { "1704150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33920743605772, 30.40975985335814 ], [ -88.33920743605772, 30.426376745978125 ], [ -88.3200343053128, 30.426376745978125 ], [ -88.3200343053128, 30.40975985335814 ], [ -88.33920743605772, 30.40975985335814 ] ] ] }, "bbox": [ -88.33920743605772, 30.40975985335814, -88.3200343053128, 30.426376745978125 ], "properties": { "created": "2026-03-18 15:35:26.928642+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704156C.json", "type": "application/json" } ], "assets": { "1704156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33934870019081, 30.426255764204058 ], [ -88.33934870019081, 30.44287269387675 ], [ -88.32017225204197, 30.44287269387675 ], [ -88.32017225204197, 30.426255764204058 ], [ -88.33934870019081, 30.426255764204058 ] ] ] }, "bbox": [ -88.33934870019081, 30.426255764204058, -88.32017225204197, 30.44287269387675 ], "properties": { "created": "2026-03-18 15:35:27.041525+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704162C.json", "type": "application/json" } ], "assets": { "1704162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33949008114205, 30.44275163273382 ], [ -88.33949008114205, 30.45936859947152 ], [ -88.32031031286056, 30.45936859947152 ], [ -88.32031031286056, 30.44275163273382 ], [ -88.33949008114205, 30.44275163273382 ] ] ] }, "bbox": [ -88.33949008114205, 30.44275163273382, -88.32031031286056, 30.45936859947152 ], "properties": { "created": "2026-03-18 15:35:27.147876+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704168C.json", "type": "application/json" } ], "assets": { "1704168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33963157899349, 30.45924745893359 ], [ -88.33963157899349, 30.47586446274863 ], [ -88.32044848784875, 30.47586446274863 ], [ -88.32044848784875, 30.45924745893359 ], [ -88.33963157899349, 30.45924745893359 ] ] ] }, "bbox": [ -88.33963157899349, 30.45924745893359, -88.32044848784875, 30.47586446274863 ], "properties": { "created": "2026-03-18 15:35:27.290197+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704174C.json", "type": "application/json" } ], "assets": { "1704174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33977319382744, 30.47574324278954 ], [ -88.33977319382744, 30.492360283694275 ], [ -88.32058677708679, 30.492360283694275 ], [ -88.32058677708679, 30.47574324278954 ], [ -88.33977319382744, 30.47574324278954 ] ] ] }, "bbox": [ -88.33977319382744, 30.47574324278954, -88.32058677708679, 30.492360283694275 ], "properties": { "created": "2026-03-18 15:35:27.459960+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704180C.json", "type": "application/json" } ], "assets": { "1704180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.33991492572616, 30.492238984287848 ], [ -88.33991492572616, 30.508856062294704 ], [ -88.32072518065505, 30.508856062294704 ], [ -88.32072518065505, 30.492238984287848 ], [ -88.33991492572616, 30.492238984287848 ] ] ] }, "bbox": [ -88.33991492572616, 30.492238984287848, -88.32072518065505, 30.508856062294704 ], "properties": { "created": "2026-03-18 15:35:27.605788+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704186C.json", "type": "application/json" } ], "assets": { "1704186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34005677477212, 30.508734683414744 ], [ -88.34005677477212, 30.525351798536164 ], [ -88.32086369863399, 30.525351798536164 ], [ -88.32086369863399, 30.508734683414744 ], [ -88.34005677477212, 30.508734683414744 ] ] ] }, "bbox": [ -88.34005677477212, 30.508734683414744, -88.32086369863399, 30.525351798536164 ], "properties": { "created": "2026-03-18 15:35:27.818781+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704192C.json", "type": "application/json" } ], "assets": { "1704192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34019874104781, 30.52523034015642 ], [ -88.34019874104781, 30.541847492404905 ], [ -88.32100233110415, 30.541847492404905 ], [ -88.32100233110415, 30.52523034015642 ], [ -88.34019874104781, 30.52523034015642 ] ] ] }, "bbox": [ -88.34019874104781, 30.52523034015642, -88.32100233110415, 30.541847492404905 ], "properties": { "created": "2026-03-18 15:35:27.976366+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704198C.json", "type": "application/json" } ], "assets": { "1704198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34034082463589, 30.541725954499125 ], [ -88.34034082463589, 30.55834314388719 ], [ -88.32114107814623, 30.55834314388719 ], [ -88.32114107814623, 30.541725954499125 ], [ -88.34034082463589, 30.541725954499125 ] ] ] }, "bbox": [ -88.34034082463589, 30.541725954499125, -88.32114107814623, 30.55834314388719 ], "properties": { "created": "2026-03-18 15:35:28.183742+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704204C.json", "type": "application/json" } ], "assets": { "1704204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704210C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34048302561904, 30.558221526429083 ], [ -88.34048302561904, 30.574838752969303 ], [ -88.32127993984093, 30.574838752969303 ], [ -88.32127993984093, 30.558221526429083 ], [ -88.34048302561904, 30.558221526429083 ] ] ] }, "bbox": [ -88.34048302561904, 30.558221526429083, -88.32127993984093, 30.574838752969303 ], "properties": { "created": "2026-03-18 15:35:28.297885+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704210C.json", "type": "application/json" } ], "assets": { "1704210C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704210C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704216C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34062534408014, 30.574717055932556 ], [ -88.34062534408014, 30.591334319637532 ], [ -88.32141891626912, 30.591334319637532 ], [ -88.32141891626912, 30.574717055932556 ], [ -88.34062534408014, 30.574717055932556 ] ] ] }, "bbox": [ -88.34062534408014, 30.574717055932556, -88.32141891626912, 30.591334319637532 ], "properties": { "created": "2026-03-18 15:35:28.433836+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704216C.json", "type": "application/json" } ], "assets": { "1704216C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704216C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704222C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34076778010206, 30.591212542995805 ], [ -88.34076778010206, 30.607829843878203 ], [ -88.32155800751177, 30.607829843878203 ], [ -88.32155800751177, 30.591212542995805 ], [ -88.34076778010206, 30.591212542995805 ] ] ] }, "bbox": [ -88.34076778010206, 30.591212542995805, -88.32155800751177, 30.607829843878203 ], "properties": { "created": "2026-03-18 15:35:28.717657+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704222C.json", "type": "application/json" } ], "assets": { "1704222C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704222C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704228C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34091033376785, 30.607707987605124 ], [ -88.34091033376785, 30.624325325677642 ], [ -88.3216972136499, 30.624325325677642 ], [ -88.3216972136499, 30.607707987605124 ], [ -88.34091033376785, 30.607707987605124 ] ] ] }, "bbox": [ -88.34091033376785, 30.607707987605124, -88.3216972136499, 30.624325325677642 ], "properties": { "created": "2026-03-18 15:35:28.821471+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704228C.json", "type": "application/json" } ], "assets": { "1704228C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704228C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704234B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34105300516066, 30.624203389746825 ], [ -88.34105300516066, 30.640820765022163 ], [ -88.32183653476466, 30.640820765022163 ], [ -88.32183653476466, 30.624203389746825 ], [ -88.34105300516066, 30.624203389746825 ] ] ] }, "bbox": [ -88.34105300516066, 30.624203389746825, -88.32183653476466, 30.640820765022163 ], "properties": { "created": "2026-03-18 15:35:28.978633+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704234B.json", "type": "application/json" } ], "assets": { "1704234B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704234B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704240B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34119579436368, 30.640698749407182 ], [ -88.34119579436368, 30.657316161898134 ], [ -88.32197597093729, 30.657316161898134 ], [ -88.32197597093729, 30.640698749407182 ], [ -88.34119579436368, 30.640698749407182 ] ] ] }, "bbox": [ -88.34119579436368, 30.640698749407182, -88.32197597093729, 30.657316161898134 ], "properties": { "created": "2026-03-18 15:35:29.065843+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704240B.json", "type": "application/json" } ], "assets": { "1704240B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704240B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704246B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34133870146026, 30.65719406657254 ], [ -88.34133870146026, 30.673811516291916 ], [ -88.32211552224915, 30.673811516291916 ], [ -88.32211552224915, 30.65719406657254 ], [ -88.34133870146026, 30.65719406657254 ] ] ] }, "bbox": [ -88.34133870146026, 30.65719406657254, -88.32211552224915, 30.673811516291916 ], "properties": { "created": "2026-03-18 15:35:29.174984+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704246B.json", "type": "application/json" } ], "assets": { "1704246B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704246B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704252B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34148172653383, 30.673689341229238 ], [ -88.34148172653383, 30.690306828189875 ], [ -88.32225518878164, 30.690306828189875 ], [ -88.32225518878164, 30.673689341229238 ], [ -88.34148172653383, 30.673689341229238 ] ] ] }, "bbox": [ -88.34148172653383, 30.673689341229238, -88.32225518878164, 30.690306828189875 ], "properties": { "created": "2026-03-18 15:35:29.281453+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704252B.json", "type": "application/json" } ], "assets": { "1704252B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704252B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704258B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34162486966792, 30.690184573363627 ], [ -88.34162486966792, 30.706802097578404 ], [ -88.32239497061634, 30.706802097578404 ], [ -88.32239497061634, 30.690184573363627 ], [ -88.34162486966792, 30.690184573363627 ] ] ] }, "bbox": [ -88.34162486966792, 30.690184573363627, -88.32239497061634, 30.706802097578404 ], "properties": { "created": "2026-03-18 15:35:29.407843+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704258B.json", "type": "application/json" } ], "assets": { "1704258B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704258B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704264B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34176813094615, 30.70667976296205 ], [ -88.34176813094615, 30.723297324443923 ], [ -88.3225348678349, 30.723297324443923 ], [ -88.3225348678349, 30.70667976296205 ], [ -88.34176813094615, 30.70667976296205 ] ] ] }, "bbox": [ -88.34176813094615, 30.70667976296205, -88.3225348678349, 30.723297324443923 ], "properties": { "created": "2026-03-18 15:35:29.479666+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704264B.json", "type": "application/json" } ], "assets": { "1704264B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704264B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704270B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34191151045228, 30.723174910010915 ], [ -88.34191151045228, 30.73979250877283 ], [ -88.32267488051902, 30.73979250877283 ], [ -88.32267488051902, 30.723174910010915 ], [ -88.34191151045228, 30.723174910010915 ] ] ] }, "bbox": [ -88.34191151045228, 30.723174910010915, -88.32267488051902, 30.73979250877283 ], "properties": { "created": "2026-03-18 15:35:29.561146+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704270B.json", "type": "application/json" } ], "assets": { "1704270B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704270B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704276B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3420550082701, 30.739670014496575 ], [ -88.3420550082701, 30.756287650551574 ], [ -88.32281500875052, 30.756287650551574 ], [ -88.32281500875052, 30.739670014496575 ], [ -88.3420550082701, 30.739670014496575 ] ] ] }, "bbox": [ -88.3420550082701, 30.739670014496575, -88.32281500875052, 30.756287650551574 ], "properties": { "created": "2026-03-18 15:35:29.713029+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704276B.json", "type": "application/json" } ], "assets": { "1704276B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704276B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704282B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34219862448359, 30.75616507640547 ], [ -88.34219862448359, 30.772782749766584 ], [ -88.3229552526114, 30.772782749766584 ], [ -88.3229552526114, 30.75616507640547 ], [ -88.34219862448359, 30.75616507640547 ] ] ] }, "bbox": [ -88.34219862448359, 30.75616507640547, -88.3229552526114, 30.772782749766584 ], "properties": { "created": "2026-03-18 15:35:29.856505+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704282B.json", "type": "application/json" } ], "assets": { "1704282B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704282B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704288B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34234235917677, 30.772660095723992 ], [ -88.34234235917677, 30.789277806404325 ], [ -88.32309561218362, 30.789277806404325 ], [ -88.32309561218362, 30.772660095723992 ], [ -88.34234235917677, 30.772660095723992 ] ] ] }, "bbox": [ -88.34234235917677, 30.772660095723992, -88.32309561218362, 30.789277806404325 ], "properties": { "created": "2026-03-18 15:35:29.973492+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704288B.json", "type": "application/json" } ], "assets": { "1704288B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704288B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704294B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34248621243378, 30.7891550724386 ], [ -88.34248621243378, 30.805772820451264 ], [ -88.32323608754939, 30.805772820451264 ], [ -88.32323608754939, 30.7891550724386 ], [ -88.34248621243378, 30.7891550724386 ] ] ] }, "bbox": [ -88.34248621243378, 30.7891550724386, -88.32323608754939, 30.805772820451264 ], "properties": { "created": "2026-03-18 15:35:30.055247+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704294B.json", "type": "application/json" } ], "assets": { "1704294B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704294B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704300B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34263018433887, 30.805650006535714 ], [ -88.34263018433887, 30.822267791893893 ], [ -88.32337667879088, 30.822267791893893 ], [ -88.32337667879088, 30.805650006535714 ], [ -88.34263018433887, 30.805650006535714 ] ] ] }, "bbox": [ -88.34263018433887, 30.805650006535714, -88.32337667879088, 30.822267791893893 ], "properties": { "created": "2026-03-18 15:35:30.117673+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704300B.json", "type": "application/json" } ], "assets": { "1704300B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704300B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704306B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34277427497639, 30.8221448980018 ], [ -88.34277427497639, 30.8387627207187 ], [ -88.32351738599047, 30.8387627207187 ], [ -88.32351738599047, 30.8221448980018 ], [ -88.34277427497639, 30.8221448980018 ] ] ] }, "bbox": [ -88.34277427497639, 30.8221448980018, -88.32351738599047, 30.8387627207187 ], "properties": { "created": "2026-03-18 15:35:30.192396+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704306B.json", "type": "application/json" } ], "assets": { "1704306B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704306B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704312B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3429184844308, 30.838639746823333 ], [ -88.3429184844308, 30.855257606912204 ], [ -88.32365820923056, 30.855257606912204 ], [ -88.32365820923056, 30.838639746823333 ], [ -88.3429184844308, 30.838639746823333 ] ] ] }, "bbox": [ -88.3429184844308, 30.838639746823333, -88.32365820923056, 30.855257606912204 ], "properties": { "created": "2026-03-18 15:35:30.304816+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704312B.json", "type": "application/json" } ], "assets": { "1704312B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704312B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704318B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3430628127866, 30.85513455298678 ], [ -88.3430628127866, 30.87175245046093 ], [ -88.32379914859371, 30.87175245046093 ], [ -88.32379914859371, 30.85513455298678 ], [ -88.3430628127866, 30.85513455298678 ] ] ] }, "bbox": [ -88.3430628127866, 30.85513455298678, -88.32379914859371, 30.87175245046093 ], "properties": { "created": "2026-03-18 15:35:30.431995+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704318B.json", "type": "application/json" } ], "assets": { "1704318B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704318B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704324B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34320726012848, 30.871629316478668 ], [ -88.34320726012848, 30.888247251351434 ], [ -88.32394020416254, 30.888247251351434 ], [ -88.32394020416254, 30.871629316478668 ], [ -88.34320726012848, 30.871629316478668 ] ] ] }, "bbox": [ -88.34320726012848, 30.871629316478668, -88.32394020416254, 30.888247251351434 ], "properties": { "created": "2026-03-18 15:35:30.529924+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704324B.json", "type": "application/json" } ], "assets": { "1704324B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704324B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704330B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34335182654121, 30.888124037285497 ], [ -88.34335182654121, 30.904742009570228 ], [ -88.32408137601979, 30.904742009570228 ], [ -88.32408137601979, 30.888124037285497 ], [ -88.34335182654121, 30.888124037285497 ] ] ] }, "bbox": [ -88.34335182654121, 30.888124037285497, -88.32408137601979, 30.904742009570228 ], "properties": { "created": "2026-03-18 15:35:30.657988+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704330B.json", "type": "application/json" } ], "assets": { "1704330B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704330B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704336B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34349651210961, 30.904618715393784 ], [ -88.34349651210961, 30.921236725103906 ], [ -88.3242226642483, 30.921236725103906 ], [ -88.3242226642483, 30.904618715393784 ], [ -88.34349651210961, 30.904618715393784 ] ] ] }, "bbox": [ -88.34349651210961, 30.904618715393784, -88.3242226642483, 30.921236725103906 ], "properties": { "created": "2026-03-18 15:35:30.795996+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704336B.json", "type": "application/json" } ], "assets": { "1704336B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704336B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704342B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34364131691868, 30.921113350790076 ], [ -88.34364131691868, 30.93773139793906 ], [ -88.32436406893099, 30.93773139793906 ], [ -88.32436406893099, 30.921113350790076 ], [ -88.34364131691868, 30.921113350790076 ] ] ] }, "bbox": [ -88.34364131691868, 30.921113350790076, -88.32436406893099, 30.93773139793906 ], "properties": { "created": "2026-03-18 15:35:30.983956+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704342B.json", "type": "application/json" } ], "assets": { "1704342B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704342B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704348B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34378624105346, 30.937607943460925 ], [ -88.34378624105346, 30.954226028062244 ], [ -88.3245055901509, 30.954226028062244 ], [ -88.3245055901509, 30.937607943460925 ], [ -88.34378624105346, 30.937607943460925 ] ] ] }, "bbox": [ -88.34378624105346, 30.937607943460925, -88.3245055901509, 30.954226028062244 ], "properties": { "created": "2026-03-18 15:35:31.047523+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704348B.json", "type": "application/json" } ], "assets": { "1704348B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704348B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704354B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34393128459914, 30.954102493392895 ], [ -88.34393128459914, 30.970720615460095 ], [ -88.32464722799119, 30.970720615460095 ], [ -88.32464722799119, 30.954102493392895 ], [ -88.34393128459914, 30.954102493392895 ] ] ] }, "bbox": [ -88.34393128459914, 30.954102493392895, -88.32464722799119, 30.970720615460095 ], "properties": { "created": "2026-03-18 15:35:31.169648+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704354B.json", "type": "application/json" } ], "assets": { "1704354B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704354B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704360B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34407644764096, 30.97059700057256 ], [ -88.34407644764096, 30.98721516011923 ], [ -88.3247889825351, 30.98721516011923 ], [ -88.3247889825351, 30.97059700057256 ], [ -88.34407644764096, 30.97059700057256 ] ] ] }, "bbox": [ -88.34407644764096, 30.97059700057256, -88.3247889825351, 30.98721516011923 ], "properties": { "created": "2026-03-18 15:35:31.295315+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704360B.json", "type": "application/json" } ], "assets": { "1704360B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704360B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704366B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34422173026434, 30.98709146498654 ], [ -88.34422173026434, 31.003709662026274 ], [ -88.32493085386594, 31.003709662026274 ], [ -88.32493085386594, 30.98709146498654 ], [ -88.34422173026434, 30.98709146498654 ] ] ] }, "bbox": [ -88.34422173026434, 30.98709146498654, -88.32493085386594, 31.003709662026274 ], "properties": { "created": "2026-03-18 15:35:31.415902+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704366B.json", "type": "application/json" } ], "assets": { "1704366B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704366B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34436713255471, 31.003585886621412 ], [ -88.34436713255471, 31.02020412116788 ], [ -88.32507284206716, 31.02020412116788 ], [ -88.32507284206716, 31.003585886621412 ], [ -88.34436713255471, 31.003585886621412 ] ] ] }, "bbox": [ -88.34436713255471, 31.003585886621412, -88.32507284206716, 31.02020412116788 ], "properties": { "created": "2026-03-18 15:35:31.696916+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704372C.json", "type": "application/json" } ], "assets": { "1704372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3445126545977, 31.020080265463797 ], [ -88.3445126545977, 31.036698537530707 ], [ -88.3252149472223, 31.036698537530707 ], [ -88.3252149472223, 31.020080265463797 ], [ -88.3445126545977, 31.020080265463797 ] ] ] }, "bbox": [ -88.3445126545977, 31.020080265463797, -88.3252149472223, 31.036698537530707 ], "properties": { "created": "2026-03-18 15:35:31.787610+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704378C.json", "type": "application/json" } ], "assets": { "1704378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34465829647897, 31.036574601500348 ], [ -88.34465829647897, 31.053192911101423 ], [ -88.32535716941503, 31.053192911101423 ], [ -88.32535716941503, 31.036574601500348 ], [ -88.34465829647897, 31.036574601500348 ] ] ] }, "bbox": [ -88.34465829647897, 31.036574601500348, -88.32535716941503, 31.053192911101423 ], "properties": { "created": "2026-03-18 15:35:31.931531+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704384C.json", "type": "application/json" } ], "assets": { "1704384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3448040582843, 31.0530688947177 ], [ -88.3448040582843, 31.069687241866724 ], [ -88.32549950872908, 31.069687241866724 ], [ -88.32549950872908, 31.0530688947177 ], [ -88.3448040582843, 31.0530688947177 ] ] ] }, "bbox": [ -88.3448040582843, 31.0530688947177, -88.32549950872908, 31.069687241866724 ], "properties": { "created": "2026-03-18 15:35:32.083993+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704390C.json", "type": "application/json" } ], "assets": { "1704390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34494994009962, 31.069563145102514 ], [ -88.34494994009962, 31.08618152981332 ], [ -88.3256419652483, 31.08618152981332 ], [ -88.3256419652483, 31.069563145102514 ], [ -88.34494994009962, 31.069563145102514 ] ] ] }, "bbox": [ -88.34494994009962, 31.069563145102514, -88.3256419652483, 31.08618152981332 ], "properties": { "created": "2026-03-18 15:35:32.195599+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704396C.json", "type": "application/json" } ], "assets": { "1704396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34509594201093, 31.086057352641475 ], [ -88.34509594201093, 31.10267577492791 ], [ -88.32578453905661, 31.10267577492791 ], [ -88.32578453905661, 31.086057352641475 ], [ -88.34509594201093, 31.086057352641475 ] ] ] }, "bbox": [ -88.34509594201093, 31.086057352641475, -88.32578453905661, 31.10267577492791 ], "properties": { "created": "2026-03-18 15:35:32.303432+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704402C.json", "type": "application/json" } ], "assets": { "1704402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34524206410433, 31.10255151732125 ], [ -88.34524206410433, 31.11916997719722 ], [ -88.32592723023811, 31.11916997719722 ], [ -88.32592723023811, 31.10255151732125 ], [ -88.34524206410433, 31.10255151732125 ] ] ] }, "bbox": [ -88.34524206410433, 31.10255151732125, -88.32592723023811, 31.11916997719722 ], "properties": { "created": "2026-03-18 15:35:32.387598+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704408C.json", "type": "application/json" } ], "assets": { "1704408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704414C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34538830646599, 31.119045639128544 ], [ -88.34538830646599, 31.135664136608018 ], [ -88.32607003887694, 31.135664136608018 ], [ -88.32607003887694, 31.119045639128544 ], [ -88.34538830646599, 31.119045639128544 ] ] ] }, "bbox": [ -88.34538830646599, 31.119045639128544, -88.32607003887694, 31.135664136608018 ], "properties": { "created": "2026-03-18 15:35:32.488370+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704414C.json", "type": "application/json" } ], "assets": { "1704414C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704414C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 414000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1704420C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.34553466918229, 31.135539718050108 ], [ -88.34553466918229, 31.15215825314704 ], [ -88.32621296505734, 31.15215825314704 ], [ -88.32621296505734, 31.135539718050108 ], [ -88.34553466918229, 31.135539718050108 ] ] ] }, "bbox": [ -88.34553466918229, 31.135539718050108, -88.32621296505734, 31.15215825314704 ], "properties": { "created": "2026-03-18 15:35:32.610707+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1704420C.json", "type": "application/json" } ], "assets": { "1704420C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1704420C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1704000.0, 0.0, -2.0, 420000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710084C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.31852439836275, 30.211925579946847 ], [ -88.31852439836275, 30.228539354674766 ], [ -88.29939392033234, 30.228539354674766 ], [ -88.29939392033234, 30.211925579946847 ], [ -88.31852439836275, 30.211925579946847 ] ] ] }, "bbox": [ -88.31852439836275, 30.211925579946847, -88.29939392033234, 30.228539354674766 ], "properties": { "created": "2026-03-18 15:35:32.780702+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710084C.json", "type": "application/json" } ], "assets": { "1710084C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710084C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 84000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710090C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.31866109537168, 30.228422076533978 ], [ -88.31866109537168, 30.24503588638278 ], [ -88.29952733507541, 30.24503588638278 ], [ -88.29952733507541, 30.228422076533978 ], [ -88.31866109537168, 30.228422076533978 ] ] ] }, "bbox": [ -88.31866109537168, 30.228422076533978, -88.29952733507541, 30.24503588638278 ], "properties": { "created": "2026-03-18 15:35:32.954835+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710090C.json", "type": "application/json" } ], "assets": { "1710090C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710090C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 90000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710138C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.31975875380255, 30.36039253162138 ], [ -88.31975875380255, 30.377006622845585 ], [ -88.30059863788605, 30.377006622845585 ], [ -88.30059863788605, 30.36039253162138 ], [ -88.31975875380255, 30.36039253162138 ] ] ] }, "bbox": [ -88.31975875380255, 30.36039253162138, -88.30059863788605, 30.377006622845585 ], "properties": { "created": "2026-03-18 15:35:33.193508+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710138C.json", "type": "application/json" } ], "assets": { "1710138C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710138C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 138000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.31989647259299, 30.376888648597223 ], [ -88.31989647259299, 30.393502775044972 ], [ -88.30073305000825, 30.393502775044972 ], [ -88.30073305000825, 30.376888648597223 ], [ -88.31989647259299, 30.376888648597223 ] ] ] }, "bbox": [ -88.31989647259299, 30.376888648597223, -88.30073305000825, 30.393502775044972 ], "properties": { "created": "2026-03-18 15:35:33.287908+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710144C.json", "type": "application/json" } ], "assets": { "1710144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3200343053128, 30.393384723324527 ], [ -88.3200343053128, 30.409998885007422 ], [ -88.30086757333873, 30.409998885007422 ], [ -88.30086757333873, 30.393384723324527 ], [ -88.3200343053128, 30.393384723324527 ] ] ] }, "bbox": [ -88.3200343053128, 30.393384723324527, -88.30086757333873, 30.409998885007422 ], "properties": { "created": "2026-03-18 15:35:33.389635+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710150C.json", "type": "application/json" } ], "assets": { "1710150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32017225204197, 30.409880755789434 ], [ -88.32017225204197, 30.426494952719125 ], [ -88.30100220795555, 30.426494952719125 ], [ -88.30100220795555, 30.409880755789434 ], [ -88.32017225204197, 30.409880755789434 ] ] ] }, "bbox": [ -88.32017225204197, 30.409880755789434, -88.30100220795555, 30.426494952719125 ], "properties": { "created": "2026-03-18 15:35:33.480990+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710156C.json", "type": "application/json" } ], "assets": { "1710156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32031031286056, 30.426376745978125 ], [ -88.32031031286056, 30.44299097816628 ], [ -88.3011369539368, 30.44299097816628 ], [ -88.3011369539368, 30.426376745978125 ], [ -88.32031031286056, 30.426376745978125 ] ] ] }, "bbox": [ -88.32031031286056, 30.426376745978125, -88.3011369539368, 30.44299097816628 ], "properties": { "created": "2026-03-18 15:35:33.652415+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710162C.json", "type": "application/json" } ], "assets": { "1710162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32044848784875, 30.44287269387675 ], [ -88.32044848784875, 30.4594869613351 ], [ -88.30127181136072, 30.4594869613351 ], [ -88.30127181136072, 30.44287269387675 ], [ -88.32044848784875, 30.44287269387675 ] ] ] }, "bbox": [ -88.32044848784875, 30.44287269387675, -88.30127181136072, 30.4594869613351 ], "properties": { "created": "2026-03-18 15:35:33.770618+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710168C.json", "type": "application/json" } ], "assets": { "1710168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32058677708679, 30.45936859947152 ], [ -88.32058677708679, 30.475982902211804 ], [ -88.30140678030561, 30.475982902211804 ], [ -88.30140678030561, 30.45936859947152 ], [ -88.32058677708679, 30.45936859947152 ] ] ] }, "bbox": [ -88.32058677708679, 30.45936859947152, -88.30140678030561, 30.475982902211804 ], "properties": { "created": "2026-03-18 15:35:33.935438+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710174C.json", "type": "application/json" } ], "assets": { "1710174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32072518065505, 30.47586446274863 ], [ -88.32072518065505, 30.49247880078265 ], [ -88.30154186084988, 30.49247880078265 ], [ -88.30154186084988, 30.47586446274863 ], [ -88.32072518065505, 30.47586446274863 ] ] ] }, "bbox": [ -88.32072518065505, 30.47586446274863, -88.30154186084988, 30.49247880078265 ], "properties": { "created": "2026-03-18 15:35:34.182482+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710180C.json", "type": "application/json" } ], "assets": { "1710180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32086369863399, 30.492360283694275 ], [ -88.32086369863399, 30.508974657033885 ], [ -88.30167705307198, 30.508974657033885 ], [ -88.30167705307198, 30.492360283694275 ], [ -88.32086369863399, 30.492360283694275 ] ] ] }, "bbox": [ -88.32086369863399, 30.492360283694275, -88.30167705307198, 30.508974657033885 ], "properties": { "created": "2026-03-18 15:35:34.325982+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710186C.json", "type": "application/json" } ], "assets": { "1710186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32100233110415, 30.508856062294704 ], [ -88.32100233110415, 30.525470470951777 ], [ -88.3018123570506, 30.525470470951777 ], [ -88.3018123570506, 30.508856062294704 ], [ -88.32100233110415, 30.508856062294704 ] ] ] }, "bbox": [ -88.32100233110415, 30.508856062294704, -88.3018123570506, 30.525470470951777 ], "properties": { "created": "2026-03-18 15:35:34.483506+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710192C.json", "type": "application/json" } ], "assets": { "1710192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32114107814623, 30.525351798536164 ], [ -88.32114107814623, 30.541966242522594 ], [ -88.30194777286432, 30.541966242522594 ], [ -88.30194777286432, 30.525351798536164 ], [ -88.32114107814623, 30.525351798536164 ] ] ] }, "bbox": [ -88.32114107814623, 30.525351798536164, -88.30194777286432, 30.541966242522594 ], "properties": { "created": "2026-03-18 15:35:34.580891+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710198C.json", "type": "application/json" } ], "assets": { "1710198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32127993984093, 30.541847492404905 ], [ -88.32127993984093, 30.55846197173265 ], [ -88.302083300592, 30.55846197173265 ], [ -88.302083300592, 30.541847492404905 ], [ -88.32127993984093, 30.541847492404905 ] ] ] }, "bbox": [ -88.32127993984093, 30.541847492404905, -88.302083300592, 30.55846197173265 ], "properties": { "created": "2026-03-18 15:35:34.800584+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710204C.json", "type": "application/json" } ], "assets": { "1710204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710210C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32141891626912, 30.55834314388719 ], [ -88.32141891626912, 30.574957658568263 ], [ -88.3022189403125, 30.574957658568263 ], [ -88.3022189403125, 30.55834314388719 ], [ -88.32141891626912, 30.55834314388719 ] ] ] }, "bbox": [ -88.32141891626912, 30.55834314388719, -88.3022189403125, 30.574957658568263 ], "properties": { "created": "2026-03-18 15:35:34.926219+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710210C.json", "type": "application/json" } ], "assets": { "1710210C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710210C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710216A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32155800751177, 30.574838752969303 ], [ -88.32155800751177, 30.59145330301571 ], [ -88.30235469210479, 30.59145330301571 ], [ -88.30235469210479, 30.574838752969303 ], [ -88.32155800751177, 30.574838752969303 ] ] ] }, "bbox": [ -88.32155800751177, 30.574838752969303, -88.30235469210479, 30.59145330301571 ], "properties": { "created": "2026-03-18 15:35:35.085348+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710216A.json", "type": "application/json" } ], "assets": { "1710216A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710216A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710222A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3216972136499, 30.591334319637532 ], [ -88.3216972136499, 30.607948905061377 ], [ -88.30249055604794, 30.607948905061377 ], [ -88.30249055604794, 30.591334319637532 ], [ -88.3216972136499, 30.591334319637532 ] ] ] }, "bbox": [ -88.3216972136499, 30.591334319637532, -88.30249055604794, 30.607948905061377 ], "properties": { "created": "2026-03-18 15:35:35.206891+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710222A.json", "type": "application/json" } ], "assets": { "1710222A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710222A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710228A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32183653476466, 30.607829843878203 ], [ -88.32183653476466, 30.62444446469158 ], [ -88.30262653222113, 30.62444446469158 ], [ -88.30262653222113, 30.607829843878203 ], [ -88.32183653476466, 30.607829843878203 ] ] ] }, "bbox": [ -88.32183653476466, 30.607829843878203, -88.30262653222113, 30.62444446469158 ], "properties": { "created": "2026-03-18 15:35:35.326781+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710228A.json", "type": "application/json" } ], "assets": { "1710228A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710228A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710234A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32197597093729, 30.624325325677642 ], [ -88.32197597093729, 30.640939981892693 ], [ -88.3027626207036, 30.640939981892693 ], [ -88.3027626207036, 30.624325325677642 ], [ -88.32197597093729, 30.624325325677642 ] ] ] }, "bbox": [ -88.32197597093729, 30.624325325677642, -88.3027626207036, 30.640939981892693 ], "properties": { "created": "2026-03-18 15:35:35.452539+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710234A.json", "type": "application/json" } ], "assets": { "1710234A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710234A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710240A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32211552224915, 30.640820765022163 ], [ -88.32211552224915, 30.65743545665109 ], [ -88.30289882157473, 30.65743545665109 ], [ -88.30289882157473, 30.640820765022163 ], [ -88.32211552224915, 30.640820765022163 ] ] ] }, "bbox": [ -88.32211552224915, 30.640820765022163, -88.30289882157473, 30.65743545665109 ], "properties": { "created": "2026-03-18 15:35:35.515462+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710240A.json", "type": "application/json" } ], "assets": { "1710240A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710240A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710246A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32225518878164, 30.657316161898134 ], [ -88.32225518878164, 30.67393088895317 ], [ -88.30303513491396, 30.67393088895317 ], [ -88.30303513491396, 30.657316161898134 ], [ -88.32225518878164, 30.657316161898134 ] ] ] }, "bbox": [ -88.32225518878164, 30.657316161898134, -88.30303513491396, 30.67393088895317 ], "properties": { "created": "2026-03-18 15:35:35.578366+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710246A.json", "type": "application/json" } ], "assets": { "1710246A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710246A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710252A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32239497061634, 30.673811516291916 ], [ -88.32239497061634, 30.690426278785324 ], [ -88.30317156080086, 30.690426278785324 ], [ -88.30317156080086, 30.673811516291916 ], [ -88.32239497061634, 30.673811516291916 ] ] ] }, "bbox": [ -88.32239497061634, 30.673811516291916, -88.30317156080086, 30.690426278785324 ], "properties": { "created": "2026-03-18 15:35:35.709755+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710252A.json", "type": "application/json" } ], "assets": { "1710252A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710252A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710258A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3225348678349, 30.690306828189875 ], [ -88.3225348678349, 30.706921626133955 ], [ -88.30330809931506, 30.706921626133955 ], [ -88.30330809931506, 30.690306828189875 ], [ -88.3225348678349, 30.690306828189875 ] ] ] }, "bbox": [ -88.3225348678349, 30.690306828189875, -88.30330809931506, 30.706921626133955 ], "properties": { "created": "2026-03-18 15:35:35.958192+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710258A.json", "type": "application/json" } ], "assets": { "1710258A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710258A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710264A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32267488051902, 30.706802097578404 ], [ -88.32267488051902, 30.723416930985522 ], [ -88.30344475053633, 30.723416930985522 ], [ -88.30344475053633, 30.706802097578404 ], [ -88.32267488051902, 30.706802097578404 ] ] ] }, "bbox": [ -88.32267488051902, 30.706802097578404, -88.30344475053633, 30.723416930985522 ], "properties": { "created": "2026-03-18 15:35:36.082927+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710264A.json", "type": "application/json" } ], "assets": { "1710264A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710264A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710270A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32281500875052, 30.723297324443923 ], [ -88.32281500875052, 30.739912193326465 ], [ -88.30358151454448, 30.739912193326465 ], [ -88.30358151454448, 30.723297324443923 ], [ -88.32281500875052, 30.723297324443923 ] ] ] }, "bbox": [ -88.32281500875052, 30.723297324443923, -88.30358151454448, 30.739912193326465 ], "properties": { "created": "2026-03-18 15:35:36.193684+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710270A.json", "type": "application/json" } ], "assets": { "1710270A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710270A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710276A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3229552526114, 30.73979250877283 ], [ -88.3229552526114, 30.75640741314321 ], [ -88.30371839141947, 30.75640741314321 ], [ -88.30371839141947, 30.73979250877283 ], [ -88.3229552526114, 30.73979250877283 ] ] ] }, "bbox": [ -88.3229552526114, 30.73979250877283, -88.30371839141947, 30.75640741314321 ], "properties": { "created": "2026-03-18 15:35:36.302387+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710276A.json", "type": "application/json" } ], "assets": { "1710276A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710276A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710282A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32309561218362, 30.756287650551574 ], [ -88.32309561218362, 30.772902590422262 ], [ -88.30385538124132, 30.772902590422262 ], [ -88.30385538124132, 30.756287650551574 ], [ -88.32309561218362, 30.756287650551574 ] ] ] }, "bbox": [ -88.32309561218362, 30.756287650551574, -88.30385538124132, 30.772902590422262 ], "properties": { "created": "2026-03-18 15:35:36.436572+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710282A.json", "type": "application/json" } ], "assets": { "1710282A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710282A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710288B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32323608754939, 30.772782749766584 ], [ -88.32323608754939, 30.7893977251501 ], [ -88.30399248409017, 30.7893977251501 ], [ -88.30399248409017, 30.772782749766584 ], [ -88.32323608754939, 30.772782749766584 ] ] ] }, "bbox": [ -88.32323608754939, 30.772782749766584, -88.30399248409017, 30.7893977251501 ], "properties": { "created": "2026-03-18 15:35:36.515895+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710288B.json", "type": "application/json" } ], "assets": { "1710288B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710288B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710294B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32337667879088, 30.789277806404325 ], [ -88.32337667879088, 30.805892817313214 ], [ -88.30412970004626, 30.805892817313214 ], [ -88.30412970004626, 30.789277806404325 ], [ -88.32337667879088, 30.789277806404325 ] ] ] }, "bbox": [ -88.32337667879088, 30.789277806404325, -88.30412970004626, 30.805892817313214 ], "properties": { "created": "2026-03-18 15:35:36.666983+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710294B.json", "type": "application/json" } ], "assets": { "1710294B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710294B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710300B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32351738599047, 30.805772820451264 ], [ -88.32351738599047, 30.822387866898087 ], [ -88.30426702918992, 30.822387866898087 ], [ -88.30426702918992, 30.805772820451264 ], [ -88.32351738599047, 30.805772820451264 ] ] ] }, "bbox": [ -88.32351738599047, 30.805772820451264, -88.30426702918992, 30.822387866898087 ], "properties": { "created": "2026-03-18 15:35:37.139163+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710300B.json", "type": "application/json" } ], "assets": { "1710300B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710300B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710306B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32365820923056, 30.822267791893893 ], [ -88.32365820923056, 30.838882873891308 ], [ -88.30440447160154, 30.838882873891308 ], [ -88.30440447160154, 30.822267791893893 ], [ -88.32365820923056, 30.822267791893893 ] ] ] }, "bbox": [ -88.32365820923056, 30.822267791893893, -88.30440447160154, 30.838882873891308 ], "properties": { "created": "2026-03-18 15:35:37.238952+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710306B.json", "type": "application/json" } ], "assets": { "1710306B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710306B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710312B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32379914859371, 30.8387627207187 ], [ -88.32379914859371, 30.855377838279363 ], [ -88.30454202736169, 30.855377838279363 ], [ -88.30454202736169, 30.8387627207187 ], [ -88.32379914859371, 30.8387627207187 ] ] ] }, "bbox": [ -88.32379914859371, 30.8387627207187, -88.30454202736169, 30.855377838279363 ], "properties": { "created": "2026-03-18 15:35:37.341019+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710312B.json", "type": "application/json" } ], "assets": { "1710312B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710312B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710318B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32394020416254, 30.855257606912204 ], [ -88.32394020416254, 30.871872760048813 ], [ -88.30467969655096, 30.871872760048813 ], [ -88.30467969655096, 30.855257606912204 ], [ -88.32394020416254, 30.855257606912204 ] ] ] }, "bbox": [ -88.32394020416254, 30.855257606912204, -88.30467969655096, 30.871872760048813 ], "properties": { "created": "2026-03-18 15:35:37.488526+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710318B.json", "type": "application/json" } ], "assets": { "1710318B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710318B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710324B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32408137601979, 30.87175245046093 ], [ -88.32408137601979, 30.888367639186253 ], [ -88.30481747925006, 30.888367639186253 ], [ -88.30481747925006, 30.87175245046093 ], [ -88.32408137601979, 30.87175245046093 ] ] ] }, "bbox": [ -88.32408137601979, 30.87175245046093, -88.30481747925006, 30.888367639186253 ], "properties": { "created": "2026-03-18 15:35:37.832696+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710324B.json", "type": "application/json" } ], "assets": { "1710324B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710324B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710330B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3242226642483, 30.888247251351434 ], [ -88.3242226642483, 30.904862475678218 ], [ -88.30495537553985, 30.904862475678218 ], [ -88.30495537553985, 30.888247251351434 ], [ -88.3242226642483, 30.888247251351434 ] ] ] }, "bbox": [ -88.3242226642483, 30.888247251351434, -88.30495537553985, 30.904862475678218 ], "properties": { "created": "2026-03-18 15:35:37.929960+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710330B.json", "type": "application/json" } ], "assets": { "1710330B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710330B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710336B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32436406893099, 30.904742009570228 ], [ -88.32436406893099, 30.921357269511326 ], [ -88.30509338550121, 30.921357269511326 ], [ -88.30509338550121, 30.904742009570228 ], [ -88.32436406893099, 30.904742009570228 ] ] ] }, "bbox": [ -88.32436406893099, 30.904742009570228, -88.30509338550121, 30.921357269511326 ], "properties": { "created": "2026-03-18 15:35:38.200745+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710336B.json", "type": "application/json" } ], "assets": { "1710336B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710336B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710342B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3245055901509, 30.921236725103906 ], [ -88.3245055901509, 30.93785202067218 ], [ -88.30523150921515, 30.93785202067218 ], [ -88.30523150921515, 30.921236725103906 ], [ -88.3245055901509, 30.921236725103906 ] ] ] }, "bbox": [ -88.3245055901509, 30.921236725103906, -88.30523150921515, 30.93785202067218 ], "properties": { "created": "2026-03-18 15:35:38.298519+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710342B.json", "type": "application/json" } ], "assets": { "1710342B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710342B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710348B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32464722799119, 30.93773139793906 ], [ -88.32464722799119, 30.9543467291474 ], [ -88.30536974676279, 30.9543467291474 ], [ -88.30536974676279, 30.93773139793906 ], [ -88.32464722799119, 30.93773139793906 ] ] ] }, "bbox": [ -88.32464722799119, 30.93773139793906, -88.30536974676279, 30.9543467291474 ], "properties": { "created": "2026-03-18 15:35:38.394731+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710348B.json", "type": "application/json" } ], "assets": { "1710348B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710348B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710354B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3247889825351, 30.954226028062244 ], [ -88.3247889825351, 30.970841394923617 ], [ -88.30550809822535, 30.970841394923617 ], [ -88.30550809822535, 30.954226028062244 ], [ -88.3247889825351, 30.954226028062244 ] ] ] }, "bbox": [ -88.3247889825351, 30.954226028062244, -88.30550809822535, 30.970841394923617 ], "properties": { "created": "2026-03-18 15:35:38.465962+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710354B.json", "type": "application/json" } ], "assets": { "1710354B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710354B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710360B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32493085386594, 30.970720615460095 ], [ -88.32493085386594, 30.98733601798748 ], [ -88.30564656368414, 30.98733601798748 ], [ -88.30564656368414, 30.970720615460095 ], [ -88.32493085386594, 30.970720615460095 ] ] ] }, "bbox": [ -88.32493085386594, 30.970720615460095, -88.30564656368414, 30.98733601798748 ], "properties": { "created": "2026-03-18 15:35:38.659743+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710360B.json", "type": "application/json" } ], "assets": { "1710360B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710360B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710366B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32507284206716, 30.98721516011923 ], [ -88.32507284206716, 31.003830598325646 ], [ -88.30578514322053, 31.003830598325646 ], [ -88.30578514322053, 30.98721516011923 ], [ -88.32507284206716, 30.98721516011923 ] ] ] }, "bbox": [ -88.32507284206716, 30.98721516011923, -88.30578514322053, 31.003830598325646 ], "properties": { "created": "2026-03-18 15:35:38.816602+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710366B.json", "type": "application/json" } ], "assets": { "1710366B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710366B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3252149472223, 31.003709662026274 ], [ -88.3252149472223, 31.020325135924786 ], [ -88.30592383691607, 31.020325135924786 ], [ -88.30592383691607, 31.003709662026274 ], [ -88.3252149472223, 31.003709662026274 ] ] ] }, "bbox": [ -88.3252149472223, 31.003709662026274, -88.30592383691607, 31.020325135924786 ], "properties": { "created": "2026-03-18 15:35:39.108591+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710372C.json", "type": "application/json" } ], "assets": { "1710372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32535716941503, 31.02020412116788 ], [ -88.32535716941503, 31.0368196307716 ], [ -88.30606264485235, 31.0368196307716 ], [ -88.30606264485235, 31.02020412116788 ], [ -88.32535716941503, 31.02020412116788 ] ] ] }, "bbox": [ -88.32535716941503, 31.02020412116788, -88.30606264485235, 31.0368196307716 ], "properties": { "created": "2026-03-18 15:35:39.231001+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710378C.json", "type": "application/json" } ], "assets": { "1710378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32549950872908, 31.036698537530707 ], [ -88.32549950872908, 31.053314082852776 ], [ -88.30620156711107, 31.053314082852776 ], [ -88.30620156711107, 31.036698537530707 ], [ -88.32549950872908, 31.036698537530707 ] ] ] }, "bbox": [ -88.32549950872908, 31.036698537530707, -88.30620156711107, 31.053314082852776 ], "properties": { "created": "2026-03-18 15:35:39.343626+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710384C.json", "type": "application/json" } ], "assets": { "1710384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3256419652483, 31.053192911101423 ], [ -88.3256419652483, 31.06980849215504 ], [ -88.30634060377405, 31.06980849215504 ], [ -88.30634060377405, 31.053192911101423 ], [ -88.3256419652483, 31.053192911101423 ] ] ] }, "bbox": [ -88.3256419652483, 31.053192911101423, -88.30634060377405, 31.06980849215504 ], "properties": { "created": "2026-03-18 15:35:39.478920+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710390C.json", "type": "application/json" } ], "assets": { "1710390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32578453905661, 31.069687241866724 ], [ -88.32578453905661, 31.086302858665118 ], [ -88.30647975492316, 31.086302858665118 ], [ -88.30647975492316, 31.069687241866724 ], [ -88.32578453905661, 31.069687241866724 ] ] ] }, "bbox": [ -88.32578453905661, 31.069687241866724, -88.30647975492316, 31.086302858665118 ], "properties": { "created": "2026-03-18 15:35:39.645958+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710396C.json", "type": "application/json" } ], "assets": { "1710396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32592723023811, 31.08618152981332 ], [ -88.32592723023811, 31.102797182369734 ], [ -88.30661902064044, 31.102797182369734 ], [ -88.30661902064044, 31.08618152981332 ], [ -88.32592723023811, 31.08618152981332 ] ] ] }, "bbox": [ -88.32592723023811, 31.08618152981332, -88.30661902064044, 31.102797182369734 ], "properties": { "created": "2026-03-18 15:35:39.902737+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710402C.json", "type": "application/json" } ], "assets": { "1710402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32607003887694, 31.10267577492791 ], [ -88.32607003887694, 31.11929146325567 ], [ -88.30675840100798, 31.11929146325567 ], [ -88.30675840100798, 31.10267577492791 ], [ -88.32607003887694, 31.10267577492791 ] ] ] }, "bbox": [ -88.32607003887694, 31.10267577492791, -88.30675840100798, 31.11929146325567 ], "properties": { "created": "2026-03-18 15:35:40.045863+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710408C.json", "type": "application/json" } ], "assets": { "1710408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710414C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32621296505734, 31.11916997719722 ], [ -88.32621296505734, 31.135785701309675 ], [ -88.30689789610797, 31.135785701309675 ], [ -88.30689789610797, 31.11916997719722 ], [ -88.32621296505734, 31.11916997719722 ] ] ] }, "bbox": [ -88.32621296505734, 31.11916997719722, -88.30689789610797, 31.135785701309675 ], "properties": { "created": "2026-03-18 15:35:40.148140+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710414C.json", "type": "application/json" } ], "assets": { "1710414C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710414C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 414000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1710420C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.32635600886367, 31.135664136608018 ], [ -88.32635600886367, 31.152279896518547 ], [ -88.30703750602274, 31.152279896518547 ], [ -88.30703750602274, 31.135664136608018 ], [ -88.32635600886367, 31.135664136608018 ] ] ] }, "bbox": [ -88.32635600886367, 31.135664136608018, -88.30703750602274, 31.152279896518547 ], "properties": { "created": "2026-03-18 15:35:40.243895+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1710420C.json", "type": "application/json" } ], "assets": { "1710420C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1710420C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1710000.0, 0.0, -2.0, 420000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716090C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2996608603288, 30.228539354674766 ], [ -88.2996608603288, 30.245150486661224 ], [ -88.2805301612778, 30.245150486661224 ], [ -88.2805301612778, 30.228539354674766 ], [ -88.2996608603288, 30.228539354674766 ] ] ] }, "bbox": [ -88.2996608603288, 30.228539354674766, -88.2805301612778, 30.245150486661224 ], "properties": { "created": "2026-03-18 15:35:40.353482+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716090C.json", "type": "application/json" } ], "assets": { "1716090C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716090C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 90000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30086757333873, 30.377006622845585 ], [ -88.30086757333873, 30.393618055312903 ], [ -88.28170723500567, 30.393618055312903 ], [ -88.28170723500567, 30.377006622845585 ], [ -88.30086757333873, 30.377006622845585 ] ] ] }, "bbox": [ -88.30086757333873, 30.377006622845585, -88.28170723500567, 30.393618055312903 ], "properties": { "created": "2026-03-18 15:35:40.587783+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716144C.json", "type": "application/json" } ], "assets": { "1716144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30100220795555, 30.393502775044972 ], [ -88.30100220795555, 30.4101142409537 ], [ -88.28183856279819, 30.4101142409537 ], [ -88.28183856279819, 30.393502775044972 ], [ -88.30100220795555, 30.393502775044972 ] ] ] }, "bbox": [ -88.30100220795555, 30.393502775044972, -88.28183856279819, 30.4101142409537 ], "properties": { "created": "2026-03-18 15:35:40.664850+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716150C.json", "type": "application/json" } ], "assets": { "1716150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3011369539368, 30.409998885007422 ], [ -88.3011369539368, 30.426610384368622 ], [ -88.28196999923388, 30.426610384368622 ], [ -88.28196999923388, 30.409998885007422 ], [ -88.3011369539368, 30.409998885007422 ] ] ] }, "bbox": [ -88.3011369539368, 30.409998885007422, -88.28196999923388, 30.426610384368622 ], "properties": { "created": "2026-03-18 15:35:40.764489+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716156C.json", "type": "application/json" } ], "assets": { "1716156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30127181136072, 30.426494952719125 ], [ -88.30127181136072, 30.44310648554389 ], [ -88.28210154438901, 30.44310648554389 ], [ -88.28210154438901, 30.426494952719125 ], [ -88.30127181136072, 30.426494952719125 ] ] ] }, "bbox": [ -88.30127181136072, 30.426494952719125, -88.28210154438901, 30.44310648554389 ], "properties": { "created": "2026-03-18 15:35:40.885968+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716162C.json", "type": "application/json" } ], "assets": { "1716162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30140678030561, 30.44299097816628 ], [ -88.30140678030561, 30.459602544465778 ], [ -88.28223319833994, 30.459602544465778 ], [ -88.28223319833994, 30.44299097816628 ], [ -88.30140678030561, 30.44299097816628 ] ] ] }, "bbox": [ -88.30140678030561, 30.44299097816628, -88.28223319833994, 30.459602544465778 ], "properties": { "created": "2026-03-18 15:35:41.002946+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716168C.json", "type": "application/json" } ], "assets": { "1716168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30154186084988, 30.4594869613351 ], [ -88.30154186084988, 30.4760985611205 ], [ -88.28236496116313, 30.4760985611205 ], [ -88.28236496116313, 30.4594869613351 ], [ -88.30154186084988, 30.4594869613351 ] ] ] }, "bbox": [ -88.30154186084988, 30.4594869613351, -88.28236496116313, 30.4760985611205 ], "properties": { "created": "2026-03-18 15:35:41.129006+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716174C.json", "type": "application/json" } ], "assets": { "1716174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30167705307198, 30.475982902211804 ], [ -88.30167705307198, 30.492594535494337 ], [ -88.2824968329351, 30.492594535494337 ], [ -88.2824968329351, 30.475982902211804 ], [ -88.30167705307198, 30.475982902211804 ] ] ] }, "bbox": [ -88.30167705307198, 30.475982902211804, -88.2824968329351, 30.492594535494337 ], "properties": { "created": "2026-03-18 15:35:41.255709+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716180C.json", "type": "application/json" } ], "assets": { "1716180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3018123570506, 30.49247880078265 ], [ -88.3018123570506, 30.509090467573568 ], [ -88.2826288137325, 30.509090467573568 ], [ -88.2826288137325, 30.49247880078265 ], [ -88.3018123570506, 30.49247880078265 ] ] ] }, "bbox": [ -88.3018123570506, 30.49247880078265, -88.2826288137325, 30.509090467573568 ], "properties": { "created": "2026-03-18 15:35:41.351045+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716186C.json", "type": "application/json" } ], "assets": { "1716186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30194777286432, 30.508974657033885 ], [ -88.30194777286432, 30.525586357344498 ], [ -88.28276090363205, 30.525586357344498 ], [ -88.28276090363205, 30.508974657033885 ], [ -88.30194777286432, 30.508974657033885 ] ] ] }, "bbox": [ -88.30194777286432, 30.508974657033885, -88.28276090363205, 30.525586357344498 ], "properties": { "created": "2026-03-18 15:35:41.480932+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716192C.json", "type": "application/json" } ], "assets": { "1716192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.302083300592, 30.525470470951777 ], [ -88.302083300592, 30.54208220479342 ], [ -88.28289310271057, 30.54208220479342 ], [ -88.28289310271057, 30.525470470951777 ], [ -88.302083300592, 30.525470470951777 ] ] ] }, "bbox": [ -88.302083300592, 30.525470470951777, -88.28289310271057, 30.54208220479342 ], "properties": { "created": "2026-03-18 15:35:41.631633+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716198C.json", "type": "application/json" } ], "assets": { "1716198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3022189403125, 30.541966242522594 ], [ -88.3022189403125, 30.558578009906647 ], [ -88.28302541104499, 30.558578009906647 ], [ -88.28302541104499, 30.541966242522594 ], [ -88.3022189403125, 30.541966242522594 ] ] ] }, "bbox": [ -88.3022189403125, 30.541966242522594, -88.28302541104499, 30.558578009906647 ], "properties": { "created": "2026-03-18 15:35:41.783692+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716204C.json", "type": "application/json" } ], "assets": { "1716204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716210A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30235469210479, 30.55846197173265 ], [ -88.30235469210479, 30.575073772670528 ], [ -88.28315782871229, 30.575073772670528 ], [ -88.28315782871229, 30.55846197173265 ], [ -88.30235469210479, 30.55846197173265 ] ] ] }, "bbox": [ -88.30235469210479, 30.55846197173265, -88.28315782871229, 30.575073772670528 ], "properties": { "created": "2026-03-18 15:35:41.916647+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716210A.json", "type": "application/json" } ], "assets": { "1716210A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716210A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716216A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30249055604794, 30.574957658568263 ], [ -88.30249055604794, 30.591569493071407 ], [ -88.28329035578959, 30.591569493071407 ], [ -88.28329035578959, 30.574957658568263 ], [ -88.30249055604794, 30.574957658568263 ] ] ] }, "bbox": [ -88.30249055604794, 30.574957658568263, -88.28329035578959, 30.591569493071407 ], "properties": { "created": "2026-03-18 15:35:42.031153+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716216A.json", "type": "application/json" } ], "assets": { "1716216A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716216A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716222A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30262653222113, 30.59145330301571 ], [ -88.30262653222113, 30.608065171095635 ], [ -88.28342299235409, 30.608065171095635 ], [ -88.28342299235409, 30.59145330301571 ], [ -88.30262653222113, 30.59145330301571 ] ] ] }, "bbox": [ -88.30262653222113, 30.59145330301571, -88.28342299235409, 30.608065171095635 ], "properties": { "created": "2026-03-18 15:35:42.251010+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716222A.json", "type": "application/json" } ], "assets": { "1716222A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716222A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716228A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.3027626207036, 30.607948905061377 ], [ -88.3027626207036, 30.624560806729598 ], [ -88.28355573848307, 30.624560806729598 ], [ -88.28355573848307, 30.607948905061377 ], [ -88.3027626207036, 30.607948905061377 ] ] ] }, "bbox": [ -88.3027626207036, 30.607948905061377, -88.28355573848307, 30.624560806729598 ], "properties": { "created": "2026-03-18 15:35:42.352514+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716228A.json", "type": "application/json" } ], "assets": { "1716228A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716228A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716234A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30289882157473, 30.62444446469158 ], [ -88.30289882157473, 30.641056399959673 ], [ -88.2836885942539, 30.641056399959673 ], [ -88.2836885942539, 30.62444446469158 ], [ -88.30289882157473, 30.62444446469158 ] ] ] }, "bbox": [ -88.30289882157473, 30.62444446469158, -88.2836885942539, 30.641056399959673 ], "properties": { "created": "2026-03-18 15:35:42.460883+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716234A.json", "type": "application/json" } ], "assets": { "1716234A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716234A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716240A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30303513491396, 30.640939981892693 ], [ -88.30303513491396, 30.657551950772262 ], [ -88.28382155974406, 30.657551950772262 ], [ -88.28382155974406, 30.640939981892693 ], [ -88.30303513491396, 30.640939981892693 ] ] ] }, "bbox": [ -88.30303513491396, 30.640939981892693, -88.28382155974406, 30.657551950772262 ], "properties": { "created": "2026-03-18 15:35:42.524162+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716240A.json", "type": "application/json" } ], "assets": { "1716240A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716240A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716246A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30317156080086, 30.65743545665109 ], [ -88.30317156080086, 30.6740474591538 ], [ -88.28395463503112, 30.6740474591538 ], [ -88.28395463503112, 30.65743545665109 ], [ -88.30317156080086, 30.65743545665109 ] ] ] }, "bbox": [ -88.30317156080086, 30.65743545665109, -88.28395463503112, 30.6740474591538 ], "properties": { "created": "2026-03-18 15:35:42.657770+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716246A.json", "type": "application/json" } ], "assets": { "1716246A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716246A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716252A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30330809931506, 30.67393088895317 ], [ -88.30330809931506, 30.690542925090696 ], [ -88.28408782019277, 30.690542925090696 ], [ -88.28408782019277, 30.67393088895317 ], [ -88.30330809931506, 30.67393088895317 ] ] ] }, "bbox": [ -88.30330809931506, 30.67393088895317, -88.28408782019277, 30.690542925090696 ], "properties": { "created": "2026-03-18 15:35:42.842144+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716252A.json", "type": "application/json" } ], "assets": { "1716252A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716252A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716258A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30344475053633, 30.690426278785324 ], [ -88.30344475053633, 30.707038348569384 ], [ -88.28422111530672, 30.707038348569384 ], [ -88.28422111530672, 30.690426278785324 ], [ -88.30344475053633, 30.690426278785324 ] ] ] }, "bbox": [ -88.30344475053633, 30.690426278785324, -88.28422111530672, 30.707038348569384 ], "properties": { "created": "2026-03-18 15:35:43.033852+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716258A.json", "type": "application/json" } ], "assets": { "1716258A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716258A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716264A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30358151454448, 30.706921626133955 ], [ -88.30358151454448, 30.723533729576342 ], [ -88.28435452045086, 30.723533729576342 ], [ -88.28435452045086, 30.706921626133955 ], [ -88.30358151454448, 30.706921626133955 ] ] ] }, "bbox": [ -88.30358151454448, 30.706921626133955, -88.28435452045086, 30.723533729576342 ], "properties": { "created": "2026-03-18 15:35:43.150621+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716264A.json", "type": "application/json" } ], "assets": { "1716264A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716264A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716270A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30371839141947, 30.723416930985522 ], [ -88.30371839141947, 30.740029068098032 ], [ -88.28448803570312, 30.740029068098032 ], [ -88.28448803570312, 30.723416930985522 ], [ -88.30371839141947, 30.723416930985522 ] ] ] }, "bbox": [ -88.30371839141947, 30.723416930985522, -88.28448803570312, 30.740029068098032 ], "properties": { "created": "2026-03-18 15:35:43.254917+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716270A.json", "type": "application/json" } ], "assets": { "1716270A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716270A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716276A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30385538124132, 30.739912193326465 ], [ -88.30385538124132, 30.75652436412092 ], [ -88.28462166114154, 30.75652436412092 ], [ -88.28462166114154, 30.739912193326465 ], [ -88.30385538124132, 30.739912193326465 ] ] ] }, "bbox": [ -88.30385538124132, 30.739912193326465, -88.28462166114154, 30.75652436412092 ], "properties": { "created": "2026-03-18 15:35:43.371199+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716276A.json", "type": "application/json" } ], "assets": { "1716276A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716276A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716282A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30399248409017, 30.75640741314321 ], [ -88.30399248409017, 30.77301961763152 ], [ -88.28475539684426, 30.77301961763152 ], [ -88.28475539684426, 30.75640741314321 ], [ -88.30399248409017, 30.75640741314321 ] ] ] }, "bbox": [ -88.30399248409017, 30.75640741314321, -88.28475539684426, 30.77301961763152 ], "properties": { "created": "2026-03-18 15:35:43.507738+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716282A.json", "type": "application/json" } ], "assets": { "1716282A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716282A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716288C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30412970004626, 30.772902590422262 ], [ -88.30412970004626, 30.78951482861634 ], [ -88.2848892428895, 30.78951482861634 ], [ -88.2848892428895, 30.772902590422262 ], [ -88.30412970004626, 30.772902590422262 ] ] ] }, "bbox": [ -88.30412970004626, 30.772902590422262, -88.2848892428895, 30.78951482861634 ], "properties": { "created": "2026-03-18 15:35:43.737403+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716288C.json", "type": "application/json" } ], "assets": { "1716288C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716288C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716294C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30426702918992, 30.7893977251501 ], [ -88.30426702918992, 30.806009997061896 ], [ -88.2850231993556, 30.806009997061896 ], [ -88.2850231993556, 30.7893977251501 ], [ -88.30426702918992, 30.7893977251501 ] ] ] }, "bbox": [ -88.30426702918992, 30.7893977251501, -88.2850231993556, 30.806009997061896 ], "properties": { "created": "2026-03-18 15:35:43.921234+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716294C.json", "type": "application/json" } ], "assets": { "1716294C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716294C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716300B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30440447160154, 30.805892817313214 ], [ -88.30440447160154, 30.822505122954727 ], [ -88.28515726632098, 30.822505122954727 ], [ -88.28515726632098, 30.805892817313214 ], [ -88.30440447160154, 30.805892817313214 ] ] ] }, "bbox": [ -88.30440447160154, 30.805892817313214, -88.28515726632098, 30.822505122954727 ], "properties": { "created": "2026-03-18 15:35:44.024089+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716300B.json", "type": "application/json" } ], "assets": { "1716300B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716300B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716306B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30454202736169, 30.822387866898087 ], [ -88.30454202736169, 30.839000206281387 ], [ -88.28529144386414, 30.839000206281387 ], [ -88.28529144386414, 30.822387866898087 ], [ -88.30454202736169, 30.822387866898087 ] ] ] }, "bbox": [ -88.30454202736169, 30.822387866898087, -88.28529144386414, 30.839000206281387 ], "properties": { "created": "2026-03-18 15:35:44.223511+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716306B.json", "type": "application/json" } ], "assets": { "1716306B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716306B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716312B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30467969655096, 30.838882873891308 ], [ -88.30467969655096, 30.85549524702844 ], [ -88.28542573206371, 30.85549524702844 ], [ -88.28542573206371, 30.838882873891308 ], [ -88.30467969655096, 30.838882873891308 ] ] ] }, "bbox": [ -88.30467969655096, 30.838882873891308, -88.28542573206371, 30.85549524702844 ], "properties": { "created": "2026-03-18 15:35:44.379869+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716312B.json", "type": "application/json" } ], "assets": { "1716312B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716312B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716318B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30481747925006, 30.855377838279363 ], [ -88.30481747925006, 30.871990245182467 ], [ -88.28556013099838, 30.871990245182467 ], [ -88.28556013099838, 30.855377838279363 ], [ -88.30481747925006, 30.855377838279363 ] ] ] }, "bbox": [ -88.30481747925006, 30.855377838279363, -88.28556013099838, 30.871990245182467 ], "properties": { "created": "2026-03-18 15:35:44.492994+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716318B.json", "type": "application/json" } ], "assets": { "1716318B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716318B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716324B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30495537553985, 30.871872760048813 ], [ -88.30495537553985, 30.88848520073005 ], [ -88.28569464074697, 30.88848520073005 ], [ -88.28569464074697, 30.871872760048813 ], [ -88.30495537553985, 30.871872760048813 ] ] ] }, "bbox": [ -88.30495537553985, 30.871872760048813, -88.28569464074697, 30.88848520073005 ], "properties": { "created": "2026-03-18 15:35:44.587863+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716324B.json", "type": "application/json" } ], "assets": { "1716324B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716324B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716330B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30509338550121, 30.888367639186253 ], [ -88.30509338550121, 30.904980113657786 ], [ -88.28582926138836, 30.904980113657786 ], [ -88.28582926138836, 30.888367639186253 ], [ -88.30509338550121, 30.888367639186253 ] ] ] }, "bbox": [ -88.30509338550121, 30.888367639186253, -88.28582926138836, 30.904980113657786 ], "properties": { "created": "2026-03-18 15:35:44.695993+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716330B.json", "type": "application/json" } ], "assets": { "1716330B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716330B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716336B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30523150921515, 30.904862475678218 ], [ -88.30523150921515, 30.921474983952304 ], [ -88.28596399300154, 30.921474983952304 ], [ -88.28596399300154, 30.904862475678218 ], [ -88.30523150921515, 30.904862475678218 ] ] ] }, "bbox": [ -88.30523150921515, 30.904862475678218, -88.28596399300154, 30.921474983952304 ], "properties": { "created": "2026-03-18 15:35:44.786475+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716336B.json", "type": "application/json" } ], "assets": { "1716336B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716336B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716342B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30536974676279, 30.921357269511326 ], [ -88.30536974676279, 30.937969811600254 ], [ -88.28609883566563, 30.937969811600254 ], [ -88.28609883566563, 30.921357269511326 ], [ -88.30536974676279, 30.921357269511326 ] ] ] }, "bbox": [ -88.30536974676279, 30.921357269511326, -88.28609883566563, 30.937969811600254 ], "properties": { "created": "2026-03-18 15:35:44.974030+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716342B.json", "type": "application/json" } ], "assets": { "1716342B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716342B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716348B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30550809822535, 30.93785202067218 ], [ -88.30550809822535, 30.954464596588252 ], [ -88.28623378945979, 30.954464596588252 ], [ -88.28623378945979, 30.93785202067218 ], [ -88.30550809822535, 30.93785202067218 ] ] ] }, "bbox": [ -88.30550809822535, 30.93785202067218, -88.28623378945979, 30.954464596588252 ], "properties": { "created": "2026-03-18 15:35:45.066850+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716348B.json", "type": "application/json" } ], "assets": { "1716348B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716348B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716354B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30564656368414, 30.9543467291474 ], [ -88.30564656368414, 30.97095933890297 ], [ -88.2863688544633, 30.97095933890297 ], [ -88.2863688544633, 30.9543467291474 ], [ -88.30564656368414, 30.9543467291474 ] ] ] }, "bbox": [ -88.30564656368414, 30.9543467291474, -88.2863688544633, 30.97095933890297 ], "properties": { "created": "2026-03-18 15:35:45.157623+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716354B.json", "type": "application/json" } ], "assets": { "1716354B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716354B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716360B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30578514322053, 30.970841394923617 ], [ -88.30578514322053, 30.987454038531087 ], [ -88.28650403075555, 30.987454038531087 ], [ -88.28650403075555, 30.970841394923617 ], [ -88.30578514322053, 30.970841394923617 ] ] ] }, "bbox": [ -88.30578514322053, 30.970841394923617, -88.28650403075555, 30.987454038531087 ], "properties": { "created": "2026-03-18 15:35:45.295365+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716360B.json", "type": "application/json" } ], "assets": { "1716360B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716360B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716366B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30592383691607, 30.98733601798748 ], [ -88.30592383691607, 31.003948695459272 ], [ -88.28663931841601, 31.003948695459272 ], [ -88.28663931841601, 30.98733601798748 ], [ -88.30592383691607, 30.98733601798748 ] ] ] }, "bbox": [ -88.30592383691607, 30.98733601798748, -88.28663931841601, 31.003948695459272 ], "properties": { "created": "2026-03-18 15:35:45.422216+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716366B.json", "type": "application/json" } ], "assets": { "1716366B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716366B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30606264485235, 31.003830598325646 ], [ -88.30606264485235, 31.020443309674224 ], [ -88.28677471752427, 31.020443309674224 ], [ -88.28677471752427, 31.003830598325646 ], [ -88.30606264485235, 31.003830598325646 ] ] ] }, "bbox": [ -88.30606264485235, 31.003830598325646, -88.28677471752427, 31.020443309674224 ], "properties": { "created": "2026-03-18 15:35:45.522387+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716372C.json", "type": "application/json" } ], "assets": { "1716372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30620156711107, 31.020325135924786 ], [ -88.30620156711107, 31.03693788116269 ], [ -88.28691022815997, 31.03693788116269 ], [ -88.28691022815997, 31.020325135924786 ], [ -88.30620156711107, 31.020325135924786 ] ] ] }, "bbox": [ -88.30620156711107, 31.020325135924786, -88.28691022815997, 31.03693788116269 ], "properties": { "created": "2026-03-18 15:35:45.615993+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716378C.json", "type": "application/json" } ], "assets": { "1716378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30634060377405, 31.0368196307716 ], [ -88.30634060377405, 31.053432409911355 ], [ -88.28704585040288, 31.053432409911355 ], [ -88.28704585040288, 31.0368196307716 ], [ -88.30634060377405, 31.0368196307716 ] ] ] }, "bbox": [ -88.30634060377405, 31.0368196307716, -88.28704585040288, 31.053432409911355 ], "properties": { "created": "2026-03-18 15:35:45.808955+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716384C.json", "type": "application/json" } ], "assets": { "1716384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30647975492316, 31.053314082852776 ], [ -88.30647975492316, 31.069926895906985 ], [ -88.28718158433287, 31.069926895906985 ], [ -88.28718158433287, 31.053314082852776 ], [ -88.30647975492316, 31.053314082852776 ] ] ] }, "bbox": [ -88.30647975492316, 31.053314082852776, -88.28718158433287, 31.069926895906985 ], "properties": { "created": "2026-03-18 15:35:45.929948+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716390C.json", "type": "application/json" } ], "assets": { "1716390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30661902064044, 31.06980849215504 ], [ -88.30661902064044, 31.086421339136333 ], [ -88.2873174300299, 31.086421339136333 ], [ -88.2873174300299, 31.06980849215504 ], [ -88.30661902064044, 31.06980849215504 ] ] ] }, "bbox": [ -88.30661902064044, 31.06980849215504, -88.2873174300299, 31.086421339136333 ], "properties": { "created": "2026-03-18 15:35:46.023951+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716396C.json", "type": "application/json" } ], "assets": { "1716396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30675840100798, 31.086302858665118 ], [ -88.30675840100798, 31.10291573958615 ], [ -88.28745338757403, 31.10291573958615 ], [ -88.28745338757403, 31.086302858665118 ], [ -88.30675840100798, 31.086302858665118 ] ] ] }, "bbox": [ -88.30675840100798, 31.086302858665118, -88.28745338757403, 31.10291573958615 ], "properties": { "created": "2026-03-18 15:35:46.110506+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716402C.json", "type": "application/json" } ], "assets": { "1716402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30689789610797, 31.102797182369734 ], [ -88.30689789610797, 31.11941009724324 ], [ -88.2875894570454, 31.11941009724324 ], [ -88.2875894570454, 31.102797182369734 ], [ -88.30689789610797, 31.102797182369734 ] ] ] }, "bbox": [ -88.30689789610797, 31.102797182369734, -88.2875894570454, 31.11941009724324 ], "properties": { "created": "2026-03-18 15:35:46.223338+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716408C.json", "type": "application/json" } ], "assets": { "1716408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716414C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30703750602274, 31.11929146325567 ], [ -88.30703750602274, 31.13590441209439 ], [ -88.28772563852428, 31.13590441209439 ], [ -88.28772563852428, 31.11929146325567 ], [ -88.30703750602274, 31.11929146325567 ] ] ] }, "bbox": [ -88.30703750602274, 31.11929146325567, -88.28772563852428, 31.13590441209439 ], "properties": { "created": "2026-03-18 15:35:46.321988+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716414C.json", "type": "application/json" } ], "assets": { "1716414C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716414C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 414000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1716420C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.30717723083467, 31.135785701309675 ], [ -88.30717723083467, 31.152398684126403 ], [ -88.287861932091, 31.152398684126403 ], [ -88.287861932091, 31.135785701309675 ], [ -88.30717723083467, 31.135785701309675 ] ] ] }, "bbox": [ -88.30717723083467, 31.135785701309675, -88.287861932091, 31.152398684126403 ], "properties": { "created": "2026-03-18 15:35:46.440426+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1716420C.json", "type": "application/json" } ], "assets": { "1716420C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1716420C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1716000.0, 0.0, -2.0, 420000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722090C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28066051469847, 30.228653879522323 ], [ -88.28066051469847, 30.24526233177666 ], [ -88.26153287959461, 30.24526233177666 ], [ -88.26153287959461, 30.228653879522323 ], [ -88.28066051469847, 30.228653879522323 ] ] ] }, "bbox": [ -88.28066051469847, 30.228653879522323, -88.26153287959461, 30.24526233177666 ], "properties": { "created": "2026-03-18 15:35:46.575365+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722090C.json", "type": "application/json" } ], "assets": { "1722090C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722090C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 90000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722120C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2813139027259, 30.311136494204 ], [ -88.2813139027259, 30.327745104331516 ], [ -88.2621698412369, 30.327745104331516 ], [ -88.2621698412369, 30.311136494204 ], [ -88.2813139027259, 30.311136494204 ] ] ] }, "bbox": [ -88.2813139027259, 30.311136494204, -88.2621698412369, 30.327745104331516 ], "properties": { "created": "2026-03-18 15:35:46.662139+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722120C.json", "type": "application/json" } ], "assets": { "1722120C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722120C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 120000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722124C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28144490504556, 30.327632890767042 ], [ -88.28144490504556, 30.344241532499957 ], [ -88.26229755015784, 30.344241532499957 ], [ -88.26229755015784, 30.327632890767042 ], [ -88.28144490504556, 30.327632890767042 ] ] ] }, "bbox": [ -88.28144490504556, 30.327632890767042, -88.26229755015784, 30.344241532499957 ], "properties": { "created": "2026-03-18 15:35:46.764285+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722124C.json", "type": "application/json" } ], "assets": { "1722124C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722124C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 126000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722132C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28157601578015, 30.344129245173285 ], [ -88.28157601578015, 30.36073791852194 ], [ -88.26242536478196, 30.36073791852194 ], [ -88.26242536478196, 30.344129245173285 ], [ -88.28157601578015, 30.344129245173285 ] ] ] }, "bbox": [ -88.28157601578015, 30.344129245173285, -88.26242536478196, 30.36073791852194 ], "properties": { "created": "2026-03-18 15:35:46.883042+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722132C.json", "type": "application/json" } ], "assets": { "1722132C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722132C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 132000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722138C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28170723500567, 30.36062555740889 ], [ -88.28170723500567, 30.377234262383684 ], [ -88.26255328518333, 30.377234262383684 ], [ -88.26255328518333, 30.36062555740889 ], [ -88.28170723500567, 30.36062555740889 ] ] ] }, "bbox": [ -88.28170723500567, 30.36062555740889, -88.26255328518333, 30.377234262383684 ], "properties": { "created": "2026-03-18 15:35:46.969391+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722138C.json", "type": "application/json" } ], "assets": { "1722138C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722138C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 138000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28183856279819, 30.37712182746004 ], [ -88.28183856279819, 30.393730564071376 ], [ -88.2626813114361, 30.393730564071376 ], [ -88.2626813114361, 30.37712182746004 ], [ -88.28183856279819, 30.37712182746004 ] ] ] }, "bbox": [ -88.28183856279819, 30.37712182746004, -88.2626813114361, 30.393730564071376 ], "properties": { "created": "2026-03-18 15:35:47.059980+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722144C.json", "type": "application/json" } ], "assets": { "1722144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28196999923388, 30.393618055312903 ], [ -88.28196999923388, 30.410226823571257 ], [ -88.26280944361446, 30.410226823571257 ], [ -88.26280944361446, 30.393618055312903 ], [ -88.28196999923388, 30.393618055312903 ] ] ] }, "bbox": [ -88.28196999923388, 30.393618055312903, -88.26280944361446, 30.410226823571257 ], "properties": { "created": "2026-03-18 15:35:47.170000+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722150C.json", "type": "application/json" } ], "assets": { "1722150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28210154438901, 30.4101142409537 ], [ -88.28210154438901, 30.42672304086955 ], [ -88.26293768179278, 30.42672304086955 ], [ -88.26293768179278, 30.4101142409537 ], [ -88.28210154438901, 30.4101142409537 ] ] ] }, "bbox": [ -88.28210154438901, 30.4101142409537, -88.26293768179278, 30.42672304086955 ], "properties": { "created": "2026-03-18 15:35:47.279890+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722156C.json", "type": "application/json" } ], "assets": { "1722156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28223319833994, 30.426610384368622 ], [ -88.28223319833994, 30.443219215952503 ], [ -88.26306602604542, 30.443219215952503 ], [ -88.26306602604542, 30.426610384368622 ], [ -88.28223319833994, 30.426610384368622 ] ] ] }, "bbox": [ -88.28223319833994, 30.426610384368622, -88.26306602604542, 30.443219215952503 ], "properties": { "created": "2026-03-18 15:35:47.408064+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722162C.json", "type": "application/json" } ], "assets": { "1722162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28236496116313, 30.44310648554389 ], [ -88.28236496116313, 30.459715348806387 ], [ -88.26319447644693, 30.459715348806387 ], [ -88.26319447644693, 30.44310648554389 ], [ -88.28236496116313, 30.44310648554389 ] ] ] }, "bbox": [ -88.28236496116313, 30.44310648554389, -88.26319447644693, 30.459715348806387 ], "properties": { "created": "2026-03-18 15:35:47.522951+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722168C.json", "type": "application/json" } ], "assets": { "1722168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2824968329351, 30.459602544465778 ], [ -88.2824968329351, 30.476211439417483 ], [ -88.26332303307186, 30.476211439417483 ], [ -88.26332303307186, 30.459602544465778 ], [ -88.2824968329351, 30.459602544465778 ] ] ] }, "bbox": [ -88.2824968329351, 30.459602544465778, -88.26332303307186, 30.476211439417483 ], "properties": { "created": "2026-03-18 15:35:47.613625+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722174C.json", "type": "application/json" } ], "assets": { "1722174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2826288137325, 30.4760985611205 ], [ -88.2826288137325, 30.492707487772062 ], [ -88.26345169599492, 30.492707487772062 ], [ -88.26345169599492, 30.4760985611205 ], [ -88.2826288137325, 30.4760985611205 ] ] ] }, "bbox": [ -88.2826288137325, 30.4760985611205, -88.26345169599492, 30.492707487772062 ], "properties": { "created": "2026-03-18 15:35:47.812553+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722180C.json", "type": "application/json" } ], "assets": { "1722180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28276090363205, 30.492594535494337 ], [ -88.28276090363205, 30.509203493856457 ], [ -88.26358046529086, 30.509203493856457 ], [ -88.26358046529086, 30.492594535494337 ], [ -88.28276090363205, 30.492594535494337 ] ] ] }, "bbox": [ -88.28276090363205, 30.492594535494337, -88.26358046529086, 30.509203493856457 ], "properties": { "created": "2026-03-18 15:35:47.932076+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722186C.json", "type": "application/json" } ], "assets": { "1722186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28289310271057, 30.509090467573568 ], [ -88.28289310271057, 30.525699457656966 ], [ -88.26370934103454, 30.525699457656966 ], [ -88.26370934103454, 30.509090467573568 ], [ -88.28289310271057, 30.509090467573568 ] ] ] }, "bbox": [ -88.28289310271057, 30.509090467573568, -88.26370934103454, 30.525699457656966 ], "properties": { "created": "2026-03-18 15:35:48.407058+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722192C.json", "type": "application/json" } ], "assets": { "1722192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28302541104499, 30.525586357344498 ], [ -88.28302541104499, 30.542195379159928 ], [ -88.26383832330094, 30.542195379159928 ], [ -88.26383832330094, 30.525586357344498 ], [ -88.28302541104499, 30.525586357344498 ] ] ] }, "bbox": [ -88.28302541104499, 30.525586357344498, -88.26383832330094, 30.542195379159928 ], "properties": { "created": "2026-03-18 15:35:48.552162+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722198C.json", "type": "application/json" } ], "assets": { "1722198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722204C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28315782871229, 30.54208220479342 ], [ -88.28315782871229, 30.55869125835167 ], [ -88.26396741216509, 30.55869125835167 ], [ -88.26396741216509, 30.54208220479342 ], [ -88.28315782871229, 30.54208220479342 ] ] ] }, "bbox": [ -88.28315782871229, 30.54208220479342, -88.26396741216509, 30.55869125835167 ], "properties": { "created": "2026-03-18 15:35:48.659930+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722204C.json", "type": "application/json" } ], "assets": { "1722204C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722204C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722210A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28329035578959, 30.558578009906647 ], [ -88.28329035578959, 30.57518709521858 ], [ -88.2640966077021, 30.57518709521858 ], [ -88.2640966077021, 30.558578009906647 ], [ -88.28329035578959, 30.558578009906647 ] ] ] }, "bbox": [ -88.28329035578959, 30.558578009906647, -88.2640966077021, 30.57518709521858 ], "properties": { "created": "2026-03-18 15:35:48.763242+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722210A.json", "type": "application/json" } ], "assets": { "1722210A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722210A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722216A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28342299235409, 30.575073772670528 ], [ -88.28342299235409, 30.591682889747013 ], [ -88.26422590998723, 30.591682889747013 ], [ -88.26422590998723, 30.575073772670528 ], [ -88.28342299235409, 30.575073772670528 ] ] ] }, "bbox": [ -88.28342299235409, 30.575073772670528, -88.26422590998723, 30.591682889747013 ], "properties": { "created": "2026-03-18 15:35:49.029007+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722216A.json", "type": "application/json" } ], "assets": { "1722216A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722216A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722222A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28355573848307, 30.591569493071407 ], [ -88.28355573848307, 30.608178641923356 ], [ -88.26435531909578, 30.608178641923356 ], [ -88.26435531909578, 30.591569493071407 ], [ -88.28355573848307, 30.591569493071407 ] ] ] }, "bbox": [ -88.28355573848307, 30.591569493071407, -88.26435531909578, 30.608178641923356 ], "properties": { "created": "2026-03-18 15:35:49.111607+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722222A.json", "type": "application/json" } ], "assets": { "1722222A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722222A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722228A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2836885942539, 30.608065171095635 ], [ -88.2836885942539, 30.624674351733997 ], [ -88.26448483510316, 30.624674351733997 ], [ -88.26448483510316, 30.608065171095635 ], [ -88.2836885942539, 30.608065171095635 ] ] ] }, "bbox": [ -88.2836885942539, 30.608065171095635, -88.26448483510316, 30.624674351733997 ], "properties": { "created": "2026-03-18 15:35:49.206329+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722228A.json", "type": "application/json" } ], "assets": { "1722228A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722228A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722234A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28382155974406, 30.624560806729598 ], [ -88.28382155974406, 30.641170019165358 ], [ -88.26461445808488, 30.641170019165358 ], [ -88.26461445808488, 30.624560806729598 ], [ -88.28382155974406, 30.624560806729598 ] ] ] }, "bbox": [ -88.28382155974406, 30.624560806729598, -88.26461445808488, 30.641170019165358 ], "properties": { "created": "2026-03-18 15:35:49.282813+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722234A.json", "type": "application/json" } ], "assets": { "1722234A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722234A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722240A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28395463503112, 30.641056399959673 ], [ -88.28395463503112, 30.65766564420388 ], [ -88.26474418811651, 30.65766564420388 ], [ -88.26474418811651, 30.641056399959673 ], [ -88.28395463503112, 30.641056399959673 ] ] ] }, "bbox": [ -88.28395463503112, 30.641056399959673, -88.26474418811651, 30.65766564420388 ], "properties": { "created": "2026-03-18 15:35:49.398973+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722240A.json", "type": "application/json" } ], "assets": { "1722240A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722240A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722246A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28408782019277, 30.657551950772262 ], [ -88.28408782019277, 30.67416122683598 ], [ -88.26487402527376, 30.67416122683598 ], [ -88.26487402527376, 30.657551950772262 ], [ -88.28408782019277, 30.657551950772262 ] ] ] }, "bbox": [ -88.28408782019277, 30.657551950772262, -88.26487402527376, 30.67416122683598 ], "properties": { "created": "2026-03-18 15:35:49.513279+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722246A.json", "type": "application/json" } ], "assets": { "1722246A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722246A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722252A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28422111530672, 30.6740474591538 ], [ -88.28422111530672, 30.690656767048125 ], [ -88.26500396963236, 30.690656767048125 ], [ -88.26500396963236, 30.6740474591538 ], [ -88.28422111530672, 30.6740474591538 ] ] ] }, "bbox": [ -88.28422111530672, 30.6740474591538, -88.26500396963236, 30.690656767048125 ], "properties": { "created": "2026-03-18 15:35:49.591077+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722252A.json", "type": "application/json" } ], "assets": { "1722252A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722252A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722258A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28435452045086, 30.690542925090696 ], [ -88.28435452045086, 30.707152264826764 ], [ -88.26513402126822, 30.707152264826764 ], [ -88.26513402126822, 30.690542925090696 ], [ -88.28435452045086, 30.690542925090696 ] ] ] }, "bbox": [ -88.28435452045086, 30.690542925090696, -88.26513402126822, 30.707152264826764 ], "properties": { "created": "2026-03-18 15:35:49.921872+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722258A.json", "type": "application/json" } ], "assets": { "1722258A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722258A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722264A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28448803570312, 30.707038348569384 ], [ -88.28448803570312, 30.723647720158407 ], [ -88.26526418025729, 30.723647720158407 ], [ -88.26526418025729, 30.707038348569384 ], [ -88.28448803570312, 30.707038348569384 ] ] ] }, "bbox": [ -88.28448803570312, 30.707038348569384, -88.26526418025729, 30.723647720158407 ], "properties": { "created": "2026-03-18 15:35:50.021880+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722264A.json", "type": "application/json" } ], "assets": { "1722264A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722264A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722270A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28462166114154, 30.723533729576342 ], [ -88.28462166114154, 30.740143133029513 ], [ -88.26539444667563, 30.740143133029513 ], [ -88.26539444667563, 30.723533729576342 ], [ -88.28462166114154, 30.723533729576342 ] ] ] }, "bbox": [ -88.28462166114154, 30.723533729576342, -88.26539444667563, 30.740143133029513 ], "properties": { "created": "2026-03-18 15:35:50.248173+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722270A.json", "type": "application/json" } ], "assets": { "1722270A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722270A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722276A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28475539684426, 30.740029068098032 ], [ -88.28475539684426, 30.75663850342662 ], [ -88.26552482059934, 30.75663850342662 ], [ -88.26552482059934, 30.740029068098032 ], [ -88.28475539684426, 30.740029068098032 ] ] ] }, "bbox": [ -88.28475539684426, 30.740029068098032, -88.26552482059934, 30.75663850342662 ], "properties": { "created": "2026-03-18 15:35:50.400009+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722276A.json", "type": "application/json" } ], "assets": { "1722276A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722276A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722282A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2848892428895, 30.75652436412092 ], [ -88.2848892428895, 30.773133831336217 ], [ -88.26565530210468, 30.773133831336217 ], [ -88.26565530210468, 30.75652436412092 ], [ -88.2848892428895, 30.75652436412092 ] ] ] }, "bbox": [ -88.2848892428895, 30.75652436412092, -88.26565530210468, 30.773133831336217 ], "properties": { "created": "2026-03-18 15:35:50.516179+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722282A.json", "type": "application/json" } ], "assets": { "1722282A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722282A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722288A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2850231993556, 30.77301961763152 ], [ -88.2850231993556, 30.789629116744877 ], [ -88.265785891268, 30.789629116744877 ], [ -88.265785891268, 30.77301961763152 ], [ -88.2850231993556, 30.77301961763152 ] ] ] }, "bbox": [ -88.2850231993556, 30.77301961763152, -88.265785891268, 30.789629116744877 ], "properties": { "created": "2026-03-18 15:35:50.703085+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722288A.json", "type": "application/json" } ], "assets": { "1722288A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722288A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722294A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28515726632098, 30.78951482861634 ], [ -88.28515726632098, 30.806124359639117 ], [ -88.26591658816568, 30.806124359639117 ], [ -88.26591658816568, 30.78951482861634 ], [ -88.28515726632098, 30.78951482861634 ] ] ] }, "bbox": [ -88.28515726632098, 30.78951482861634, -88.26591658816568, 30.806124359639117 ], "properties": { "created": "2026-03-18 15:35:50.766471+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722294A.json", "type": "application/json" } ], "assets": { "1722294A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722294A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722300A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28529144386414, 30.806009997061896 ], [ -88.28529144386414, 30.822619560005514 ], [ -88.26604739287426, 30.822619560005514 ], [ -88.26604739287426, 30.806009997061896 ], [ -88.28529144386414, 30.806009997061896 ] ] ] }, "bbox": [ -88.28529144386414, 30.806009997061896, -88.26604739287426, 30.822619560005514 ], "properties": { "created": "2026-03-18 15:35:50.871719+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722300A.json", "type": "application/json" } ], "assets": { "1722300A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722300A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722306B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28542573206371, 30.822505122954727 ], [ -88.28542573206371, 30.839114717830636 ], [ -88.26617830547035, 30.839114717830636 ], [ -88.26617830547035, 30.822505122954727 ], [ -88.28542573206371, 30.822505122954727 ] ] ] }, "bbox": [ -88.28542573206371, 30.822505122954727, -88.26617830547035, 30.839114717830636 ], "properties": { "created": "2026-03-18 15:35:51.003787+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722306B.json", "type": "application/json" } ], "assets": { "1722306B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722306B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722312B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28556013099838, 30.839000206281387 ], [ -88.28556013099838, 30.855609833101084 ], [ -88.26630932603064, 30.855609833101084 ], [ -88.26630932603064, 30.839000206281387 ], [ -88.28556013099838, 30.839000206281387 ] ] ] }, "bbox": [ -88.28556013099838, 30.839000206281387, -88.26630932603064, 30.855609833101084 ], "properties": { "created": "2026-03-18 15:35:51.147172+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722312B.json", "type": "application/json" } ], "assets": { "1722312B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722312B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722318B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28569464074697, 30.85549524702844 ], [ -88.28569464074697, 30.87210490580345 ], [ -88.2664404546319, 30.87210490580345 ], [ -88.2664404546319, 30.85549524702844 ], [ -88.28569464074697, 30.85549524702844 ] ] ] }, "bbox": [ -88.28569464074697, 30.85549524702844, -88.2664404546319, 30.87210490580345 ], "properties": { "created": "2026-03-18 15:35:51.233241+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722318B.json", "type": "application/json" } ], "assets": { "1722318B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722318B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722324B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28582926138836, 30.871990245182467 ], [ -88.28582926138836, 30.888599935924347 ], [ -88.26657169135106, 30.888599935924347 ], [ -88.26657169135106, 30.871990245182467 ], [ -88.28582926138836, 30.871990245182467 ] ] ] }, "bbox": [ -88.28582926138836, 30.871990245182467, -88.26657169135106, 30.888599935924347 ], "properties": { "created": "2026-03-18 15:35:51.386364+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722324B.json", "type": "application/json" } ], "assets": { "1722324B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722324B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722330B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28596399300154, 30.88848520073005 ], [ -88.28596399300154, 30.905094923450417 ], [ -88.26670303626506, 30.905094923450417 ], [ -88.26670303626506, 30.88848520073005 ], [ -88.28596399300154, 30.88848520073005 ] ] ] }, "bbox": [ -88.28596399300154, 30.88848520073005, -88.26670303626506, 30.905094923450417 ], "properties": { "created": "2026-03-18 15:35:51.463023+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722330B.json", "type": "application/json" } ], "assets": { "1722330B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722330B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722336B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28609883566563, 30.904980113657786 ], [ -88.28609883566563, 30.921589868368287 ], [ -88.26683448945101, 30.921589868368287 ], [ -88.26683448945101, 30.904980113657786 ], [ -88.28609883566563, 30.904980113657786 ] ] ] }, "bbox": [ -88.28609883566563, 30.904980113657786, -88.26683448945101, 30.921589868368287 ], "properties": { "created": "2026-03-18 15:35:51.526003+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722336B.json", "type": "application/json" } ], "assets": { "1722336B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722336B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722342B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28623378945979, 30.921474983952304 ], [ -88.28623378945979, 30.93808477066463 ], [ -88.26696605098604, 30.93808477066463 ], [ -88.26696605098604, 30.921474983952304 ], [ -88.28623378945979, 30.921474983952304 ] ] ] }, "bbox": [ -88.28623378945979, 30.921474983952304, -88.26696605098604, 30.93808477066463 ], "properties": { "created": "2026-03-18 15:35:51.622605+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722342B.json", "type": "application/json" } ], "assets": { "1722342B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722342B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722348B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2863688544633, 30.937969811600254 ], [ -88.2863688544633, 30.95457963032611 ], [ -88.26709772094742, 30.95457963032611 ], [ -88.26709772094742, 30.937969811600254 ], [ -88.2863688544633, 30.937969811600254 ] ] ] }, "bbox": [ -88.2863688544633, 30.937969811600254, -88.26709772094742, 30.95457963032611 ], "properties": { "created": "2026-03-18 15:35:51.758858+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722348B.json", "type": "application/json" } ], "assets": { "1722348B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722348B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722354C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28650403075555, 30.954464596588252 ], [ -88.28650403075555, 30.971074447339415 ], [ -88.26722949941252, 30.971074447339415 ], [ -88.26722949941252, 30.954464596588252 ], [ -88.28650403075555, 30.954464596588252 ] ] ] }, "bbox": [ -88.28650403075555, 30.954464596588252, -88.26722949941252, 30.971074447339415 ], "properties": { "created": "2026-03-18 15:35:51.892289+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722354C.json", "type": "application/json" } ], "assets": { "1722354C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722354C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722360C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28663931841601, 30.97095933890297 ], [ -88.28663931841601, 30.98756922169124 ], [ -88.26736138645879, 30.98756922169124 ], [ -88.26736138645879, 30.97095933890297 ], [ -88.28663931841601, 30.97095933890297 ] ] ] }, "bbox": [ -88.28663931841601, 30.97095933890297, -88.26736138645879, 30.98756922169124 ], "properties": { "created": "2026-03-18 15:35:51.980523+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722360C.json", "type": "application/json" } ], "assets": { "1722360C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722360C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722366C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28677471752427, 30.987454038531087 ], [ -88.28677471752427, 31.004063953368277 ], [ -88.26749338216374, 31.004063953368277 ], [ -88.26749338216374, 30.987454038531087 ], [ -88.28677471752427, 30.987454038531087 ] ] ] }, "bbox": [ -88.28677471752427, 30.987454038531087, -88.26749338216374, 31.004063953368277 ], "properties": { "created": "2026-03-18 15:35:52.072513+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722366C.json", "type": "application/json" } ], "assets": { "1722366C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722366C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28691022815997, 31.003948695459272 ], [ -88.28691022815997, 31.020558642357287 ], [ -88.26762548660503, 31.020558642357287 ], [ -88.26762548660503, 31.003948695459272 ], [ -88.28691022815997, 31.003948695459272 ] ] ] }, "bbox": [ -88.28691022815997, 31.003948695459272, -88.26762548660503, 31.020558642357287 ], "properties": { "created": "2026-03-18 15:35:52.163680+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722372C.json", "type": "application/json" } ], "assets": { "1722372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28704585040288, 31.020443309674224 ], [ -88.28704585040288, 31.03705328864499 ], [ -88.26775769986037, 31.03705328864499 ], [ -88.26775769986037, 31.020443309674224 ], [ -88.28704585040288, 31.020443309674224 ] ] ] }, "bbox": [ -88.28704585040288, 31.020443309674224, -88.26775769986037, 31.03705328864499 ], "properties": { "created": "2026-03-18 15:35:52.255375+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722378C.json", "type": "application/json" } ], "assets": { "1722378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28718158433287, 31.03693788116269 ], [ -88.28718158433287, 31.053547892218152 ], [ -88.26789002200763, 31.053547892218152 ], [ -88.26789002200763, 31.03693788116269 ], [ -88.28718158433287, 31.03693788116269 ] ] ] }, "bbox": [ -88.28718158433287, 31.03693788116269, -88.26789002200763, 31.053547892218152 ], "properties": { "created": "2026-03-18 15:35:52.424720+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722384C.json", "type": "application/json" } ], "assets": { "1722384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2873174300299, 31.053432409911355 ], [ -88.2873174300299, 31.070042453063508 ], [ -88.26802245312467, 31.070042453063508 ], [ -88.26802245312467, 31.053432409911355 ], [ -88.2873174300299, 31.053432409911355 ] ] ] }, "bbox": [ -88.2873174300299, 31.053432409911355, -88.26802245312467, 31.070042453063508 ], "properties": { "created": "2026-03-18 15:35:52.492741+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722390C.json", "type": "application/json" } ], "assets": { "1722390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28745338757403, 31.069926895906985 ], [ -88.28745338757403, 31.086536971167874 ], [ -88.26815499328957, 31.086536971167874 ], [ -88.26815499328957, 31.069926895906985 ], [ -88.28745338757403, 31.069926895906985 ] ] ] }, "bbox": [ -88.28745338757403, 31.069926895906985, -88.26815499328957, 31.086536971167874 ], "properties": { "created": "2026-03-18 15:35:52.585994+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722396C.json", "type": "application/json" } ], "assets": { "1722396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2875894570454, 31.086421339136333 ], [ -88.2875894570454, 31.103031446518006 ], [ -88.26828764258039, 31.103031446518006 ], [ -88.26828764258039, 31.086421339136333 ], [ -88.2875894570454, 31.086421339136333 ] ] ] }, "bbox": [ -88.2875894570454, 31.086421339136333, -88.26828764258039, 31.103031446518006 ], "properties": { "created": "2026-03-18 15:35:52.732938+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722402C.json", "type": "application/json" } ], "assets": { "1722402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28772563852428, 31.10291573958615 ], [ -88.28772563852428, 31.11952587910074 ], [ -88.26842040107535, 31.11952587910074 ], [ -88.26842040107535, 31.10291573958615 ], [ -88.28772563852428, 31.10291573958615 ] ] ] }, "bbox": [ -88.28772563852428, 31.10291573958615, -88.26842040107535, 31.11952587910074 ], "properties": { "created": "2026-03-18 15:35:52.876554+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722408C.json", "type": "application/json" } ], "assets": { "1722408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722414C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.287861932091, 31.11941009724324 ], [ -88.287861932091, 31.1360202689029 ], [ -88.26855326885274, 31.1360202689029 ], [ -88.26855326885274, 31.11941009724324 ], [ -88.287861932091, 31.11941009724324 ] ] ] }, "bbox": [ -88.287861932091, 31.11941009724324, -88.26855326885274, 31.1360202689029 ], "properties": { "created": "2026-03-18 15:35:53.039364+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722414C.json", "type": "application/json" } ], "assets": { "1722414C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722414C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 414000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1722420C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.28799833782602, 31.13590441209439 ], [ -88.28799833782602, 31.152514615911297 ], [ -88.26868624599098, 31.152514615911297 ], [ -88.26868624599098, 31.13590441209439 ], [ -88.28799833782602, 31.13590441209439 ] ] ] }, "bbox": [ -88.28799833782602, 31.13590441209439, -88.26868624599098, 31.152514615911297 ], "properties": { "created": "2026-03-18 15:35:53.115027+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1722420C.json", "type": "application/json" } ], "assets": { "1722420C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1722420C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1722000.0, 0.0, -2.0, 420000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1726136C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2626813114361, 30.36073791852194 ], [ -88.2626813114361, 30.377343927560954 ], [ -88.24353044873514, 30.377343927560954 ], [ -88.24353044873514, 30.36073791852194 ], [ -88.2626813114361, 30.36073791852194 ] ] ] }, "bbox": [ -88.2626813114361, 30.36073791852194, -88.24353044873514, 30.377343927560954 ], "properties": { "created": "2026-03-18 15:35:53.206574+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1726136C.json", "type": "application/json" } ], "assets": { "1726136C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1726136C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 138000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728090C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26166006110721, 30.228765651020172 ], [ -88.26166006110721, 30.24537142167392 ], [ -88.24253549265067, 30.24537142167392 ], [ -88.24253549265067, 30.228765651020172 ], [ -88.26166006110721, 30.228765651020172 ] ] ] }, "bbox": [ -88.26166006110721, 30.228765651020172, -88.24253549265067, 30.24537142167392 ], "properties": { "created": "2026-03-18 15:35:53.331337+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728090C.json", "type": "application/json" } ], "assets": { "1728090C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728090C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 90000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728120C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26229755015784, 30.31124863403044 ], [ -88.26229755015784, 30.327854553602148 ], [ -88.2431565680993, 30.327854553602148 ], [ -88.2431565680993, 30.31124863403044 ], [ -88.26229755015784, 30.31124863403044 ] ] ] }, "bbox": [ -88.26229755015784, 30.31124863403044, -88.2431565680993, 30.327854553602148 ], "properties": { "created": "2026-03-18 15:35:53.421020+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728120C.json", "type": "application/json" } ], "assets": { "1728120C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728120C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 120000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728124C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26242536478196, 30.327745104331516 ], [ -88.26242536478196, 30.344351053715865 ], [ -88.24328109188659, 30.344351053715865 ], [ -88.24328109188659, 30.327745104331516 ], [ -88.26242536478196, 30.327745104331516 ] ] ] }, "bbox": [ -88.26242536478196, 30.327745104331516, -88.24328109188659, 30.344351053715865 ], "properties": { "created": "2026-03-18 15:35:53.616515+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728124C.json", "type": "application/json" } ], "assets": { "1728124C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728124C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 126000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728132C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26255328518333, 30.344241532499957 ], [ -88.26255328518333, 30.360847511706723 ], [ -88.24340571874113, 30.360847511706723 ], [ -88.24340571874113, 30.344241532499957 ], [ -88.26255328518333, 30.344241532499957 ] ] ] }, "bbox": [ -88.26255328518333, 30.344241532499957, -88.24340571874113, 30.360847511706723 ], "properties": { "created": "2026-03-18 15:35:53.820567+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728132C.json", "type": "application/json" } ], "assets": { "1728132C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728132C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 132000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26280944361446, 30.377234262383684 ], [ -88.26280944361446, 30.393840301264778 ], [ -88.24365528194092, 30.393840301264778 ], [ -88.24365528194092, 30.377234262383684 ], [ -88.26280944361446, 30.377234262383684 ] ] ] }, "bbox": [ -88.26280944361446, 30.377234262383684, -88.24365528194092, 30.393840301264778 ], "properties": { "created": "2026-03-18 15:35:53.937788+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728144C.json", "type": "application/json" } ], "assets": { "1728144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 144000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728150C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26293768179278, 30.393730564071376 ], [ -88.26293768179278, 30.410336632804434 ], [ -88.24378021843083, 30.410336632804434 ], [ -88.24378021843083, 30.393730564071376 ], [ -88.26293768179278, 30.393730564071376 ] ] ] }, "bbox": [ -88.26293768179278, 30.393730564071376, -88.24378021843083, 30.410336632804434 ], "properties": { "created": "2026-03-18 15:35:54.013441+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728150C.json", "type": "application/json" } ], "assets": { "1728150C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728150C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 150000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728156C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26306602604542, 30.410226823571257 ], [ -88.26306602604542, 30.426832922166202 ], [ -88.24390525827734, 30.426832922166202 ], [ -88.24390525827734, 30.410226823571257 ], [ -88.26306602604542, 30.410226823571257 ] ] ] }, "bbox": [ -88.26306602604542, 30.410226823571257, -88.24390525827734, 30.426832922166202 ], "properties": { "created": "2026-03-18 15:35:54.116725+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728156C.json", "type": "application/json" } ], "assets": { "1728156C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728156C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 156000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728162C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26319447644693, 30.42672304086955 ], [ -88.26319447644693, 30.443329169336337 ], [ -88.244030401553, 30.443329169336337 ], [ -88.244030401553, 30.42672304086955 ], [ -88.26319447644693, 30.42672304086955 ] ] ] }, "bbox": [ -88.26319447644693, 30.42672304086955, -88.244030401553, 30.443329169336337 ], "properties": { "created": "2026-03-18 15:35:54.219007+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728162C.json", "type": "application/json" } ], "assets": { "1728162C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728162C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 162000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728168C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26332303307186, 30.443219215952503 ], [ -88.26332303307186, 30.459825374301136 ], [ -88.24415564833049, 30.459825374301136 ], [ -88.24415564833049, 30.443219215952503 ], [ -88.26332303307186, 30.443219215952503 ] ] ] }, "bbox": [ -88.26332303307186, 30.443219215952503, -88.24415564833049, 30.459825374301136 ], "properties": { "created": "2026-03-18 15:35:54.334472+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728168C.json", "type": "application/json" } ], "assets": { "1728168C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728168C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 168000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728174C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26345169599492, 30.459715348806387 ], [ -88.26345169599492, 30.476321537046907 ], [ -88.2442809986825, 30.476321537046907 ], [ -88.2442809986825, 30.459715348806387 ], [ -88.26345169599492, 30.459715348806387 ] ] ] }, "bbox": [ -88.26345169599492, 30.459715348806387, -88.2442809986825, 30.476321537046907 ], "properties": { "created": "2026-03-18 15:35:54.426043+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728174C.json", "type": "application/json" } ], "assets": { "1728174C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728174C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 174000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728180C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26358046529086, 30.476211439417483 ], [ -88.26358046529086, 30.492817657559947 ], [ -88.24440645268186, 30.492817657559947 ], [ -88.24440645268186, 30.476211439417483 ], [ -88.26358046529086, 30.476211439417483 ] ] ] }, "bbox": [ -88.26358046529086, 30.476211439417483, -88.24440645268186, 30.492817657559947 ], "properties": { "created": "2026-03-18 15:35:54.493412+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728180C.json", "type": "application/json" } ], "assets": { "1728180C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728180C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 180000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728186C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26370934103454, 30.492707487772062 ], [ -88.26370934103454, 30.509313735826595 ], [ -88.24453201040149, 30.509313735826595 ], [ -88.24453201040149, 30.492707487772062 ], [ -88.26370934103454, 30.492707487772062 ] ] ] }, "bbox": [ -88.26370934103454, 30.492707487772062, -88.24453201040149, 30.509313735826595 ], "properties": { "created": "2026-03-18 15:35:54.600080+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728186C.json", "type": "application/json" } ], "assets": { "1728186C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728186C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 186000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728192C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26383832330094, 30.509203493856457 ], [ -88.26383832330094, 30.525809771833195 ], [ -88.24465767191437, 30.525809771833195 ], [ -88.24465767191437, 30.509203493856457 ], [ -88.26383832330094, 30.509203493856457 ] ] ] }, "bbox": [ -88.26383832330094, 30.509203493856457, -88.24465767191437, 30.525809771833195 ], "properties": { "created": "2026-03-18 15:35:54.758179+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728192C.json", "type": "application/json" } ], "assets": { "1728192C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728192C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 192000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728198C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26396741216509, 30.525699457656966 ], [ -88.26396741216509, 30.542305765566095 ], [ -88.24478343729359, 30.542305765566095 ], [ -88.24478343729359, 30.525699457656966 ], [ -88.26396741216509, 30.525699457656966 ] ] ] }, "bbox": [ -88.26396741216509, 30.525699457656966, -88.24478343729359, 30.542305765566095 ], "properties": { "created": "2026-03-18 15:35:54.927452+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728198C.json", "type": "application/json" } ], "assets": { "1728198C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728198C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 198000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728204A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2640966077021, 30.542195379159928 ], [ -88.2640966077021, 30.558801717011672 ], [ -88.24490930661231, 30.558801717011672 ], [ -88.24490930661231, 30.542195379159928 ], [ -88.2640966077021, 30.542195379159928 ] ] ] }, "bbox": [ -88.2640966077021, 30.542195379159928, -88.24490930661231, 30.558801717011672 ], "properties": { "created": "2026-03-18 15:35:55.058825+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728204A.json", "type": "application/json" } ], "assets": { "1728204A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728204A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 204000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728210A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26422590998723, 30.55869125835167 ], [ -88.26422590998723, 30.5752976261563 ], [ -88.24503527994383, 30.5752976261563 ], [ -88.24503527994383, 30.55869125835167 ], [ -88.26422590998723, 30.55869125835167 ] ] ] }, "bbox": [ -88.26422590998723, 30.55869125835167, -88.24503527994383, 30.5752976261563 ], "properties": { "created": "2026-03-18 15:35:55.265543+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728210A.json", "type": "application/json" } ], "assets": { "1728210A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728210A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 210000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728216A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26435531909578, 30.57518709521858 ], [ -88.26435531909578, 30.591793492986373 ], [ -88.24516135736145, 30.591793492986373 ], [ -88.24516135736145, 30.57518709521858 ], [ -88.26435531909578, 30.57518709521858 ] ] ] }, "bbox": [ -88.26435531909578, 30.57518709521858, -88.24516135736145, 30.591793492986373 ], "properties": { "created": "2026-03-18 15:35:55.328286+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728216A.json", "type": "application/json" } ], "assets": { "1728216A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728216A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 216000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728222A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26448483510316, 30.591682889747013 ], [ -88.26448483510316, 30.6082893174883 ], [ -88.24528753893867, 30.6082893174883 ], [ -88.24528753893867, 30.591682889747013 ], [ -88.26448483510316, 30.591682889747013 ] ] ] }, "bbox": [ -88.26448483510316, 30.591682889747013, -88.24528753893867, 30.6082893174883 ], "properties": { "created": "2026-03-18 15:35:55.431500+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728222A.json", "type": "application/json" } ], "assets": { "1728222A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728222A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 222000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728228A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26461445808488, 30.608178641923356 ], [ -88.26461445808488, 30.624785099648513 ], [ -88.24541382474897, 30.624785099648513 ], [ -88.24541382474897, 30.608178641923356 ], [ -88.26461445808488, 30.608178641923356 ] ] ] }, "bbox": [ -88.26461445808488, 30.608178641923356, -88.24541382474897, 30.624785099648513 ], "properties": { "created": "2026-03-18 15:35:55.535582+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728228A.json", "type": "application/json" } ], "assets": { "1728228A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728228A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 228000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728234A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26474418811651, 30.624674351733997 ], [ -88.26474418811651, 30.64128083945344 ], [ -88.24554021486597, 30.64128083945344 ], [ -88.24554021486597, 30.624674351733997 ], [ -88.26474418811651, 30.624674351733997 ] ] ] }, "bbox": [ -88.26474418811651, 30.624674351733997, -88.24554021486597, 30.64128083945344 ], "properties": { "created": "2026-03-18 15:35:55.629196+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728234A.json", "type": "application/json" } ], "assets": { "1728234A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728234A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 234000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728240A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26487402527376, 30.641170019165358 ], [ -88.26487402527376, 30.657776536889543 ], [ -88.24566670936338, 30.657776536889543 ], [ -88.24566670936338, 30.641170019165358 ], [ -88.26487402527376, 30.641170019165358 ] ] ] }, "bbox": [ -88.26487402527376, 30.641170019165358, -88.24566670936338, 30.657776536889543 ], "properties": { "created": "2026-03-18 15:35:55.691940+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728240A.json", "type": "application/json" } ], "assets": { "1728240A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728240A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 240000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728246A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26500396963236, 30.65766564420388 ], [ -88.26500396963236, 30.674272191943285 ], [ -88.24579330831502, 30.674272191943285 ], [ -88.24579330831502, 30.65766564420388 ], [ -88.26500396963236, 30.65766564420388 ] ] ] }, "bbox": [ -88.26500396963236, 30.65766564420388, -88.24579330831502, 30.674272191943285 ], "properties": { "created": "2026-03-18 15:35:56.033521+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728246A.json", "type": "application/json" } ], "assets": { "1728246A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728246A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 246000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728252A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26513402126822, 30.67416122683598 ], [ -88.26513402126822, 30.690767804601116 ], [ -88.24592001179475, 30.690767804601116 ], [ -88.24592001179475, 30.67416122683598 ], [ -88.26513402126822, 30.67416122683598 ] ] ] }, "bbox": [ -88.26513402126822, 30.67416122683598, -88.24592001179475, 30.690767804601116 ], "properties": { "created": "2026-03-18 15:35:56.165375+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728252A.json", "type": "application/json" } ], "assets": { "1728252A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728252A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 252000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728258A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26526418025729, 30.690656767048125 ], [ -88.26526418025729, 30.70726337484956 ], [ -88.24604681987655, 30.70726337484956 ], [ -88.24604681987655, 30.690656767048125 ], [ -88.26526418025729, 30.690656767048125 ] ] ] }, "bbox": [ -88.26526418025729, 30.690656767048125, -88.24604681987655, 30.70726337484956 ], "properties": { "created": "2026-03-18 15:35:56.288817+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728258A.json", "type": "application/json" } ], "assets": { "1728258A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728258A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 258000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728264A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26539444667563, 30.707152264826764 ], [ -88.26539444667563, 30.72375890267511 ], [ -88.2461737326345, 30.72375890267511 ], [ -88.2461737326345, 30.707152264826764 ], [ -88.26539444667563, 30.707152264826764 ] ] ] }, "bbox": [ -88.26539444667563, 30.707152264826764, -88.2461737326345, 30.72375890267511 ], "properties": { "created": "2026-03-18 15:35:56.380166+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728264A.json", "type": "application/json" } ], "assets": { "1728264A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728264A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 264000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728270A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26552482059934, 30.723647720158407 ], [ -88.26552482059934, 30.74025438806428 ], [ -88.24630075014274, 30.74025438806428 ], [ -88.24630075014274, 30.723647720158407 ], [ -88.26552482059934, 30.723647720158407 ] ] ] }, "bbox": [ -88.26552482059934, 30.723647720158407, -88.24630075014274, 30.74025438806428 ], "properties": { "created": "2026-03-18 15:35:56.572177+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728270A.json", "type": "application/json" } ], "assets": { "1728270A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728270A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 270000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728276A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26565530210468, 30.740143133029513 ], [ -88.26565530210468, 30.7567498310036 ], [ -88.24642787247551, 30.7567498310036 ], [ -88.24642787247551, 30.740143133029513 ], [ -88.26565530210468, 30.740143133029513 ] ] ] }, "bbox": [ -88.26565530210468, 30.740143133029513, -88.24642787247551, 30.7567498310036 ], "properties": { "created": "2026-03-18 15:35:56.679974+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728276A.json", "type": "application/json" } ], "assets": { "1728276A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728276A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 276000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728282A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.265785891268, 30.75663850342662 ], [ -88.265785891268, 30.77324523147962 ], [ -88.24655509970717, 30.77324523147962 ], [ -88.24655509970717, 30.75663850342662 ], [ -88.265785891268, 30.75663850342662 ] ] ] }, "bbox": [ -88.265785891268, 30.75663850342662, -88.24655509970717, 30.77324523147962 ], "properties": { "created": "2026-03-18 15:35:56.809885+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728282A.json", "type": "application/json" } ], "assets": { "1728282A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728282A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 282000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728288A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26591658816568, 30.773133831336217 ], [ -88.26591658816568, 30.789740589478917 ], [ -88.24668243191212, 30.789740589478917 ], [ -88.24668243191212, 30.773133831336217 ], [ -88.26591658816568, 30.773133831336217 ] ] ] }, "bbox": [ -88.26591658816568, 30.773133831336217, -88.24668243191212, 30.789740589478917 ], "properties": { "created": "2026-03-18 15:35:56.944501+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728288A.json", "type": "application/json" } ], "assets": { "1728288A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728288A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 288000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728294A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26604739287426, 30.789629116744877 ], [ -88.26604739287426, 30.80623590498802 ], [ -88.24680986916488, 30.80623590498802 ], [ -88.24680986916488, 30.789629116744877 ], [ -88.26604739287426, 30.789629116744877 ] ] ] }, "bbox": [ -88.26604739287426, 30.789629116744877, -88.24680986916488, 30.80623590498802 ], "properties": { "created": "2026-03-18 15:35:57.015055+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728294A.json", "type": "application/json" } ], "assets": { "1728294A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728294A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 294000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728300A", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26617830547035, 30.806124359639117 ], [ -88.26617830547035, 30.82273117799356 ], [ -88.24693741154007, 30.82273117799356 ], [ -88.24693741154007, 30.806124359639117 ], [ -88.26617830547035, 30.806124359639117 ] ] ] }, "bbox": [ -88.26617830547035, 30.806124359639117, -88.24693741154007, 30.82273117799356 ], "properties": { "created": "2026-03-18 15:35:57.137560+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728300A.json", "type": "application/json" } ], "assets": { "1728300A": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728300A.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 300000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728306B", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26630932603064, 30.822619560005514 ], [ -88.26630932603064, 30.839226408482112 ], [ -88.24706505911239, 30.839226408482112 ], [ -88.24706505911239, 30.822619560005514 ], [ -88.26630932603064, 30.822619560005514 ] ] ] }, "bbox": [ -88.26630932603064, 30.822619560005514, -88.24706505911239, 30.839226408482112 ], "properties": { "created": "2026-03-18 15:35:57.209224+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728306B.json", "type": "application/json" } ], "assets": { "1728306B": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728306B.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 306000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728312C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.2664404546319, 30.839114717830636 ], [ -88.2664404546319, 30.855721596440294 ], [ -88.2471928119566, 30.855721596440294 ], [ -88.2471928119566, 30.839114717830636 ], [ -88.2664404546319, 30.839114717830636 ] ] ] }, "bbox": [ -88.2664404546319, 30.839114717830636, -88.2471928119566, 30.855721596440294 ], "properties": { "created": "2026-03-18 15:35:57.367222+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728312C.json", "type": "application/json" } ], "assets": { "1728312C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728312C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 312000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728318C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26657169135106, 30.855609833101084 ], [ -88.26657169135106, 30.87221674185472 ], [ -88.24732067014757, 30.87221674185472 ], [ -88.24732067014757, 30.855609833101084 ], [ -88.26657169135106, 30.855609833101084 ] ] ] }, "bbox": [ -88.26657169135106, 30.855609833101084, -88.24732067014757, 30.87221674185472 ], "properties": { "created": "2026-03-18 15:35:57.472982+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728318C.json", "type": "application/json" } ], "assets": { "1728318C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728318C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 318000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728324C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26670303626506, 30.87210490580345 ], [ -88.26670303626506, 30.888711844712066 ], [ -88.24744863376031, 30.888711844712066 ], [ -88.24744863376031, 30.87210490580345 ], [ -88.26670303626506, 30.87210490580345 ] ] ] }, "bbox": [ -88.26670303626506, 30.87210490580345, -88.24744863376031, 30.888711844712066 ], "properties": { "created": "2026-03-18 15:35:57.621046+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728324C.json", "type": "application/json" } ], "assets": { "1728324C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728324C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 324000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728330C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26683448945101, 30.888599935924347 ], [ -88.26683448945101, 30.905206904998952 ], [ -88.24757670286988, 30.905206904998952 ], [ -88.24757670286988, 30.888599935924347 ], [ -88.26683448945101, 30.888599935924347 ] ] ] }, "bbox": [ -88.26683448945101, 30.888599935924347, -88.24757670286988, 30.905206904998952 ], "properties": { "created": "2026-03-18 15:35:57.712631+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728330C.json", "type": "application/json" } ], "assets": { "1728330C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728330C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 330000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728336C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26696605098604, 30.905094923450417 ], [ -88.26696605098604, 30.92170192270206 ], [ -88.2477048775514, 30.92170192270206 ], [ -88.2477048775514, 30.905094923450417 ], [ -88.26696605098604, 30.905094923450417 ] ] ] }, "bbox": [ -88.26696605098604, 30.905094923450417, -88.2477048775514, 30.92170192270206 ], "properties": { "created": "2026-03-18 15:35:57.808863+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728336C.json", "type": "application/json" } ], "assets": { "1728336C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728336C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 336000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728342C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26709772094742, 30.921589868368287 ], [ -88.26709772094742, 30.938196897808076 ], [ -88.24783315788011, 30.938196897808076 ], [ -88.24783315788011, 30.921589868368287 ], [ -88.26709772094742, 30.921589868368287 ] ] ] }, "bbox": [ -88.26709772094742, 30.921589868368287, -88.24783315788011, 30.938196897808076 ], "properties": { "created": "2026-03-18 15:35:58.099447+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728342C.json", "type": "application/json" } ], "assets": { "1728342C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728342C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 342000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728348C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26722949941252, 30.93808477066463 ], [ -88.26722949941252, 30.954691830303688 ], [ -88.24796154393137, 30.954691830303688 ], [ -88.24796154393137, 30.93808477066463 ], [ -88.26722949941252, 30.93808477066463 ] ] ] }, "bbox": [ -88.26722949941252, 30.93808477066463, -88.24796154393137, 30.954691830303688 ], "properties": { "created": "2026-03-18 15:35:58.342744+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728348C.json", "type": "application/json" } ], "assets": { "1728348C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728348C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 348000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728354C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26736138645879, 30.95457963032611 ], [ -88.26736138645879, 30.971186720175606 ], [ -88.2480900357806, 30.971186720175606 ], [ -88.2480900357806, 30.95457963032611 ], [ -88.26736138645879, 30.95457963032611 ] ] ] }, "bbox": [ -88.26736138645879, 30.95457963032611, -88.2480900357806, 30.971186720175606 ], "properties": { "created": "2026-03-18 15:35:58.429873+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728354C.json", "type": "application/json" } ], "assets": { "1728354C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728354C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 354000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728360C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26749338216374, 30.971074447339415 ], [ -88.26749338216374, 30.987681567410558 ], [ -88.24821863350333, 30.987681567410558 ], [ -88.24821863350333, 30.971074447339415 ], [ -88.26749338216374, 30.971074447339415 ] ] ] }, "bbox": [ -88.26749338216374, 30.971074447339415, -88.24821863350333, 30.987681567410558 ], "properties": { "created": "2026-03-18 15:35:58.545007+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728360C.json", "type": "application/json" } ], "assets": { "1728360C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728360C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 360000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728366C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26762548660503, 30.98756922169124 ], [ -88.26762548660503, 31.00417637199526 ], [ -88.24834733717513, 31.00417637199526 ], [ -88.24834733717513, 30.98756922169124 ], [ -88.26762548660503, 30.98756922169124 ] ] ] }, "bbox": [ -88.26762548660503, 30.98756922169124, -88.24834733717513, 31.00417637199526 ], "properties": { "created": "2026-03-18 15:35:58.804738+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728366C.json", "type": "application/json" } ], "assets": { "1728366C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728366C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 366000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728372C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26775769986037, 31.004063953368277 ], [ -88.26775769986037, 31.02067113391649 ], [ -88.24847614687172, 31.02067113391649 ], [ -88.24847614687172, 31.004063953368277 ], [ -88.26775769986037, 31.004063953368277 ] ] ] }, "bbox": [ -88.26775769986037, 31.004063953368277, -88.24847614687172, 31.02067113391649 ], "properties": { "created": "2026-03-18 15:35:58.954442+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728372C.json", "type": "application/json" } ], "assets": { "1728372C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728372C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 372000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728378C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26789002200763, 31.020558642357287 ], [ -88.26789002200763, 31.037165853160996 ], [ -88.24860506266891, 31.037165853160996 ], [ -88.24860506266891, 31.020558642357287 ], [ -88.26789002200763, 31.020558642357287 ] ] ] }, "bbox": [ -88.26789002200763, 31.020558642357287, -88.24860506266891, 31.037165853160996 ], "properties": { "created": "2026-03-18 15:35:59.202253+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728378C.json", "type": "application/json" } ], "assets": { "1728378C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728378C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 378000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728384C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26802245312467, 31.03705328864499 ], [ -88.26802245312467, 31.053660529715557 ], [ -88.24873408464258, 31.053660529715557 ], [ -88.24873408464258, 31.03705328864499 ], [ -88.26802245312467, 31.03705328864499 ] ] ] }, "bbox": [ -88.26802245312467, 31.03705328864499, -88.24873408464258, 31.053660529715557 ], "properties": { "created": "2026-03-18 15:35:59.274634+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728384C.json", "type": "application/json" } ], "assets": { "1728384C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728384C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 384000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728390C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26815499328957, 31.053547892218152 ], [ -88.26815499328957, 31.07015516356697 ], [ -88.24886321286867, 31.07015516356697 ], [ -88.24886321286867, 31.053547892218152 ], [ -88.26815499328957, 31.053547892218152 ] ] ] }, "bbox": [ -88.26815499328957, 31.053547892218152, -88.24886321286867, 31.07015516356697 ], "properties": { "created": "2026-03-18 15:35:59.386983+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728390C.json", "type": "application/json" } ], "assets": { "1728390C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728390C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 390000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728396C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26828764258039, 31.070042453063508 ], [ -88.26828764258039, 31.086649754702027 ], [ -88.2489924474233, 31.086649754702027 ], [ -88.2489924474233, 31.070042453063508 ], [ -88.26828764258039, 31.070042453063508 ] ] ] }, "bbox": [ -88.26828764258039, 31.070042453063508, -88.2489924474233, 31.086649754702027 ], "properties": { "created": "2026-03-18 15:35:59.517291+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728396C.json", "type": "application/json" } ], "assets": { "1728396C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728396C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 396000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728402C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26842040107535, 31.086536971167874 ], [ -88.26842040107535, 31.103144303107555 ], [ -88.24912178838262, 31.103144303107555 ], [ -88.24912178838262, 31.086536971167874 ], [ -88.26842040107535, 31.086536971167874 ] ] ] }, "bbox": [ -88.26842040107535, 31.086536971167874, -88.24912178838262, 31.103144303107555 ], "properties": { "created": "2026-03-18 15:35:59.620195+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728402C.json", "type": "application/json" } ], "assets": { "1728402C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728402C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 402000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728408C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26855326885274, 31.103031446518006 ], [ -88.26855326885274, 31.11963880877038 ], [ -88.24925123582285, 31.11963880877038 ], [ -88.24925123582285, 31.103031446518006 ], [ -88.26855326885274, 31.103031446518006 ] ] ] }, "bbox": [ -88.26855326885274, 31.103031446518006, -88.24925123582285, 31.11963880877038 ], "properties": { "created": "2026-03-18 15:35:59.765324+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728408C.json", "type": "application/json" } ], "assets": { "1728408C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728408C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 408000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728414C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26868624599098, 31.11952587910074 ], [ -88.26868624599098, 31.13613327167737 ], [ -88.24938078982039, 31.13613327167737 ], [ -88.24938078982039, 31.11952587910074 ], [ -88.26868624599098, 31.11952587910074 ] ] ] }, "bbox": [ -88.26868624599098, 31.11952587910074, -88.24938078982039, 31.13613327167737 ], "properties": { "created": "2026-03-18 15:36:00.028754+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728414C.json", "type": "application/json" } ], "assets": { "1728414C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728414C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 414000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1728420C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.26881933256855, 31.1360202689029 ], [ -88.26881933256855, 31.15262769181535 ], [ -88.24951045045165, 31.15262769181535 ], [ -88.24951045045165, 31.1360202689029 ], [ -88.26881933256855, 31.1360202689029 ] ] ] }, "bbox": [ -88.26881933256855, 31.1360202689029, -88.24951045045165, 31.15262769181535 ], "properties": { "created": "2026-03-18 15:36:00.142379+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1728420C.json", "type": "application/json" } ], "assets": { "1728420C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1728420C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1728000.0, 0.0, -2.0, 420000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1734090C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.24265950218168, 30.228874669113196 ], [ -88.24265950218168, 30.24547775629919 ], [ -88.2235380030709, 30.24547775629919 ], [ -88.2235380030709, 30.228874669113196 ], [ -88.24265950218168, 30.228874669113196 ] ] ] }, "bbox": [ -88.24265950218168, 30.228874669113196, -88.2235380030709, 30.24547775629919 ], "properties": { "created": "2026-03-18 15:36:00.243906+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1734090C.json", "type": "application/json" } ], "assets": { "1734090C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1734090C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1734000.0, 0.0, -2.0, 90000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1734096C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.24278361442025, 30.24537142167392 ], [ -88.24278361442025, 30.261974536833716 ], [ -88.22365884054864, 30.261974536833716 ], [ -88.22365884054864, 30.24537142167392 ], [ -88.24278361442025, 30.24537142167392 ] ] ] }, "bbox": [ -88.24278361442025, 30.24537142167392, -88.22365884054864, 30.261974536833716 ], "properties": { "created": "2026-03-18 15:36:00.349833+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1734096C.json", "type": "application/json" } ], "assets": { "1734096C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1734096C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1734000.0, 0.0, -2.0, 96000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1734120C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.24328109188659, 30.311358011379355 ], [ -88.24328109188659, 30.327961238524896 ], [ -88.22414319196656, 30.327961238524896 ], [ -88.22414319196656, 30.311358011379355 ], [ -88.24328109188659, 30.311358011379355 ] ] ] }, "bbox": [ -88.24328109188659, 30.311358011379355, -88.22414319196656, 30.327961238524896 ], "properties": { "created": "2026-03-18 15:36:00.494999+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1734120C.json", "type": "application/json" } ], "assets": { "1734120C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1734120C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1734000.0, 0.0, -2.0, 120000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1734136C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.24365528194092, 30.360847511706723 ], [ -88.24365528194092, 30.37745082293768 ], [ -88.22450750907522, 30.37745082293768 ], [ -88.22450750907522, 30.360847511706723 ], [ -88.24365528194092, 30.360847511706723 ] ] ] }, "bbox": [ -88.24365528194092, 30.360847511706723, -88.22450750907522, 30.37745082293768 ], "properties": { "created": "2026-03-18 15:36:00.593819+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1734136C.json", "type": "application/json" } ], "assets": { "1734136C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1734136C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (Y)\",north,\n ORDER[2],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Engineering survey, topographic mapping.\"],\n AREA[\"United States (USA) - Alabama west of approximately 86\u00b037'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston.\"],\n BBOX[30.14,-88.48,35.02,-86.3]],\n ID[\"EPSG\",9749]],\n VERTCRS[\"NAVD88 height (ftUS)\",\n VDATUM[\"North American Vertical Datum 1988\"],\n CS[vertical,1],\n AXIS[\"gravity-related height (H)\",up,\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n USAGE[\n SCOPE[\"Geodesy, engineering survey.\"],\n AREA[\"United States (USA) - CONUS and Alaska - onshore - Alabama; Alaska mainland; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.\"],\n BBOX[24.41,-168.26,71.4,-66.91]],\n ID[\"EPSG\",6360]]]", "proj:epsg": null, "proj:projjson": { "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "CompoundCRS", "name": "NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)", "components": [ { "type": "ProjectedCRS", "name": "NAD83(2011) / Alabama West (ftUS)", "base_crs": { "type": "GeographicCRS", "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "anchor_epoch": 2010, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 6318 } }, "conversion": { "name": "SPCS83 Alabama West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -87.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999933333, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1968500, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 9749 } }, { "type": "VerticalCRS", "name": "NAVD88 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "North American Vertical Datum 1988" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "id": { "authority": "EPSG", "code": 6360 } } ] }, "proj:transform": [ 2.0, 0.0, 1734000.0, 0.0, -2.0, 138000.0 ], "raster:bands": [ { "data_type": "float32", "nodata": -9999.0, "unit": "US survey foot" } ], "eo:bands": [ { "name": "b1", "description": "gray" } ] } } }, { "type": "Feature", "stac_version": "1.1.0", "stac_extensions": [ "https://stac-extensions.github.io/raster/v1.1.0/schema.json", "https://stac-extensions.github.io/eo/v1.1.0/schema.json", "https://stac-extensions.github.io/projection/v2.0.0/schema.json" ], "id": "1734144C", "geometry": { "type": "Polygon", "coordinates": [ [ [ -88.24378021843083, 30.377343927560954 ], [ -88.24378021843083, 30.393947266838875 ], [ -88.22462914916161, 30.393947266838875 ], [ -88.22462914916161, 30.377343927560954 ], [ -88.24378021843083, 30.377343927560954 ] ] ] }, "bbox": [ -88.24378021843083, 30.377343927560954, -88.22462914916161, 30.393947266838875 ], "properties": { "created": "2026-03-18 15:36:00.884584+00:00", "license": "NLPL", "datetime": "2026-03-18T15:34:58.031246Z" }, "links": [ { "rel": "self", "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/stac/1734144C.json", "type": "application/json" } ], "assets": { "1734144C": { "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/Mobile_DEM_2014_5169/1734144C.tif", "type": "image/tiff; application=geotiff; profile=cloud-optimized", "proj:shape": [ 3000, 3000 ], "proj:wkt2": "COMPOUNDCRS[\"NAD83(2011) / Alabama West (ftUS) + NAVD88 height (ftUS)\",\n PROJCRS[\"NAD83(2011) / Alabama West (ftUS)\",\n BASEGEOGCRS[\"NAD83(2011)\",\n DATUM[\"NAD83 (National Spatial Reference System 2011)\",\n ELLIPSOID[\"GRS 1980\",6378137,298.257222101,\n LENGTHUNIT[\"metre\",1]],\n ANCHOREPOCH[2010]],\n PRIMEM[\"Greenwich\",0,\n ANGLEUNIT[\"degree\",0.0174532925199433]],\n ID[\"EPSG\",6318]],\n CONVERSION[\"SPCS83 Alabama West zone (US survey foot)\",\n METHOD[\"Transverse Mercator\",\n ID[\"EPSG\",9807]],\n PARAMETER[\"Latitude of natural origin\",30,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8801]],\n PARAMETER[\"Longitude of natural origin\",-87.5,\n ANGLEUNIT[\"degree\",0.0174532925199433],\n ID[\"EPSG\",8802]],\n PARAMETER[\"Scale factor at natural origin\",0.999933333,\n SCALEUNIT[\"unity\",1],\n ID[\"EPSG\",8805]],\n PARAMETER[\"False easting\",1968500,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8806]],\n PARAMETER[\"False northing\",0,\n LENGTHUNIT[\"US survey foot\",0.304800609601219],\n ID[\"EPSG\",8807]]],\n CS[Cartesian,2],\n AXIS[\"easting (X)\",east,\n ORDER[1],\n LENGTHUNIT[\"US survey foot\",0.304800609601219]],\n AXIS[\"northing (