gov.noaa.nmfs.inport:53623 eng UTF8 dataset Elevation OCM Partners resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2024-02-29T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) NAD83(2011) / UTM zone 9N2008-11-12publicationEuropean Petroleum Survey Grouphttps://apps.epsg.org/api/v1/CoordRefSystem/6338/export/?format=gmlurn:ogc:def:crs:EPSG:63386.18.3 2013 UAF/GINA Lidar: Vallenar Bay, Alaska ak2013_vallenar_m8595_metadata 2013-09-12 publication NOAA/NMFS/EDM 53623 https://www.fisheries.noaa.gov/inport/item/53623 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://coast.noaa.gov/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) website Information on the NOAA Office for Coastal Management (OCM) download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8595/supplemental/Vallenar_Bay_LiDAR_Processing_QAQC.pdf WWW:LINK-1.0-http--link Dataset report Link to data set report. download https://coast.noaa.gov/dataviewer/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. download The University of Alaska Fairbanks, Geographic Information Network of Alaska (UAF/GINA) provided Aero-Metric, Inc. (AeroMetric) and Watershed Sciences, Inc. (WSI) with detailed specifications for this project in the spring of 2013. Planning and acquisition of airborne LiDAR data was carried out by WSI in early May of 2013. This delivery contains point cloud data in LAS 1.2 format classified in the following manner: Class 1: Unclassified Class 2: Bare Earth Ground Class 3: Low Vegetation (vegetation within 12 inches of the ground surface) Class 4: Medium Vegetation (vegetation greater than 12 inches, but less than 36 inches above the ground surface) Class 5: High Vegetation (vegetation greater than 36 inches above the ground surface) Class 6: Buildings Class 7: Noise Class 8: Ground Model Keypoints Class 9: Water Class 10: Breakline Proximity Class 14: Bridge Decks The following are the collection parameters and equipment used to create these data sets: Aircraft: Cessna Caravan (N604MD) LiDAR System: Leica ALS60 Approximate Collection Altitude (Above Mean Terrain): 900 meters Ground Speed: 160 kts Pulse Rate Frequency: 98-106 kHz Mirror Scan Frequency: 66 Hz Scan Angle (+/-): 14 degrees Accuracy statements are based on areas of moderate terrain, with points classified as ground. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation. The accuracy of each point is expected to meet the vertical accuracy standard, derived products may be less accurate in areas of extreme terrain and dense vegetation due to a lesser number of points defining the ground in these areas. Classified data sets such as this one may have varying posting due to some pulses not reaching the ground. The NOAA Office for Coastal Management (OCM) downloaded this lidar data from the AK DGGS site (https://elevation.alaska.gov/) and processed the data to be available on the Digital Coast Data Access Viewer (DAV). OCM processed all points to the Digital Coast Data Access Viewer (DAV). This data set contains point cloud data(' in LAZ (compressed LAS) format', ''). The data may have been reprojected or otherwise modified from the original data in an automated process. Disregard projection information in this abstract and refer to the spatial reference section. The purpose of this data set is to provide LiDAR-derived topographic data for transportation planning and road construction. AeroMetric, Watershed Sciences, Inc. The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed 2025-08-21 at https://coast.noaa.gov/dataviewer. completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian notPlanned https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8595/supplemental/ak2013_vallenar.kmz This graphic displays the footprint for this lidar data set. KML EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION theme Global Change Master Directory (GCMD) Science Keywords 17.0 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA VERTICAL LOCATION > LAND SURFACE place Global Change Master Directory (GCMD) Location Keywords 20.8 LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 17.2 Airplane > Airplane platform Global Change Master Directory (GCMD) Platform Keywords 17.2 Terrain beach erosion theme Lidar - partner (no harvest) project InPort otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2025-08-21 from the NOAA system. Cite As: OCM Partners, [Date of Access]: 2013 UAF/GINA Lidar: Vallenar Bay, Alaska [Data Date Range], https://www.fisheries.noaa.gov/inport/item/53623. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2025-08-21 from the NOAA system. Access Constraints: None otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2025-08-21 from the NOAA system. Use Constraints: Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2025-08-21 from the NOAA system. Distribution Liability: AeroMetric assumes no liability for the data being used for purposes other than stated in this document. Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 53623 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/53623.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US elevation Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; LiDARTools 1.0.9 -131.851962111 -131.724883444 55.312103583 55.410482472 | Currentness: Ground Condition 2013-05-07 LAS/LAZ - LASer Zip NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8595 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8595/index.html WWW:LINK-1.0-http--link Bulk Download Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. download dataset Horizontal Positional Accuracy Data products collected were acquired at or below 900 meters above mean terrain (AMT) and have a horizontal accuracy of 0.2 meters or better (per manufacturers system specifications). Vertical Positional Accuracy The vertical accuracy of the Classified Bare Earth for Vallenar Bay is 0.275 US Survey Feet at a 95% confidence level (RMSE*1.96 (95% CI - NSSDA)) in the "Open Terrain" land cover category or 4.3 cm RMSE. 634 survey control points were used for the Vallenar Bay data. The Consolidated Vertical Accuracy is 0.45 US Survey Feet at the 95th Percentile, calculated using 762 check points. Supplemental Vertical Accuracies are as follows: Open-Logged : 0.66 US Survey Feet at the 95th Percentile Tall Grass : 1.12 US Survey Feet at the 95th Percentile Mixed Brush : 0.62 US Survey Feet at the 95th Percentile Mature Trees : 0.45 US Survey Feet at the 95th Percentile Small Trees : 1.8 US Survey Feet at the 95th Percentile Completeness Report Complete Conceptual Consistency QAQC ground survey points were collected by SurvBase, LLC and supplied to Watershed Sciences, Inc. (WSI) WSI created a smoothed-best estimated trajectory (SBET) of the sensor at a rate of 200 Hz, by integrating the airborne GPS and IMU data The basis of the GPS coordinates were two dual frequency GPS receivers, collecting data at a rate of 2 Hz operated by Aero-Metric during the acquisition phase of this project, and were referenced to NAD83 (CORS96) ellipsoid heights. 2013-05-31T00:00:00 WSI integrated SBET and raw laser data to produce point cloud data in LAS 1.2 format for each flight line. 2013-06-03T00:00:00 WSI processed data calibration: An in-situ calibration was performed using the data collect for this project. The data was classified in each line separately for ground and other common features between lines, such as building roofs. This data was processed in TerraMatch 11.001 (TerraSolid, Ltd.), to compute corrections for roll, pitch, heading, and mirror scale. These corrections are applied in order to minimize discrepancies between flight lines. 2013-06-12T00:00:00 WSI automated classification of the bare-earth data from the LiDAR point cloud using a series of algorithms customized for the types of terrain encountered in the project. 2013-06-13T00:00:00 WSI manually classified any data which appears to be improperly classified using the automated methods. 2013-06-20T00:00:00 WSI provided AeroMetric with calibrated, vertically adjusted, and classified LiDAR data in the Vallenar Bay area. 2013-06-25T00:00:00 AeroMetric completed a series of evaluations including verifying density requirements, confirming relative and absolute accuracies, reviewing coverage and classification's, and confirming the reproducibility of ranges within the LiDAR Data. Due to tiling artifacts being identified in the low vegetation and high vegetations, using a automated method those classes were properly re-classified. 2013-09-09T00:00:00 Create point cloud data, by tile in LAS 1.2 format. The NOAA Office for Coastal Management (OCM) downloaded 32 laz files from the Alaska Division of Geological and Geophysical Surveys data Portal (https://elevation.alaska.gov/). The files contained classified elevation and intensity measurements for the 2013 Vallenar Bay data set. The data were in Alaska State Plane, Zone 5001 coordinates (NAD83 2011, US survey feet) and NAVD88 elevations (GEOID12A) in feet. The data were classified: Class 1: Unclassified, Class 2: Bare-earth ground, Class 3: Low vegetation, Class 4: Medium Vegetation, Class 5: High Vegetation, Class 6_ Buildings, Class 7: Noise, Class 8: Ground Model Keypoints, Class 9: Water, Class 10: Breakline Proximity, Class 14: Bridge Decks. Low vegetation is defined in the report as vegetation within 12 inches of the ground surface, medium vegetation as vegetation greater than 12 inches, but less than 36 inches above the ground surface and high vegetation as vegetation greater than 36 inches above the ground surface. OCM processed all points to the Digital Coast Data Access Viewer (DAV). OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. The LAStools software scripts lasinfo and lasvalidate were run on the laz files to check for errors. 2. An internal OCM script was run to check the number of points by classification and by flight ID and the gps times and intensity ranges. 3. Internal OCM scripts were run on the laz files to convert from Alaska State Plane, Zone 5001 coordinates to geographic coordinates, to convert from NAVD88 elevations to ellipsoid elevations using the GEOID12A model, to convert from feet to meters, to assign the geokeys, to assign a lidar domain profile, to sort the data by gps time and zip the data to database and to http. 2018-09-10T00:00:00 Office for Coastal Management processor The dataset has been mosaiced, reprojected, and clipped as needed from the original input files using PDAL and GDAL commands. 2025-08-21NOAA Office for Coastal Managementcoastal.info@noaa.govprocessor