| 2018 USGS Lidar: Bayou Nezpique, LA | spatialRepresentationInfo|
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| (MI_Metadata) fileIdentifier: gov.noaa.nmfs.inport:60158 language: LanguageCode: eng characterSet: (MD_CharacterSetCode) UTF8 hierarchyLevel: (MD_ScopeCode) dataset hierarchyLevelName: Elevation contact: (CI_ResponsibleParty) organisationName: OCM Partners contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) role: (CI_RoleCode) resourceProvider contact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact dateStamp: DateTime: 2023-05-30T18:10:32 metadataStandardName: ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data metadataStandardVersion: ISO 19115-2:2009(E) return to top spatialRepresentationInfo: (MD_VectorSpatialRepresentation) topologyLevel: (MD_TopologyLevelCode) geometricObjects: (MD_GeometricObjects) geometricObjectType: (MD_GeometricObjectTypeCode) point geometricObjectCount: 184905590873 return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) authority: (CI_Citation) title: NAD83(2011) date: (CI_Date) date: 2008-11-12 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: European Petroleum Survey Group contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://apps.epsg.org/api/v1/CoordRefSystem/6318/export/?format=gml role: (missing) code: urn:ogc:def:crs:EPSG:6318 version: 6.18.3 return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) authority: (CI_Citation) title: North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters alternateTitle: North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters citedResponsibleParty: (CI_ResponsibleParty) organisationName: (withheld) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://apps.epsg.org/api/v1/VerticalCoordRefSystem/5703/?api_key=gml name: North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters description: Link to Geographic Markup Language (GML) description of reference system. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) resourceProvider citedResponsibleParty: (CI_ResponsibleParty) organisationName: European Petroleum Survey Group contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.epsg.org/ name: European Petroleum Survey Group Geodetic Parameter Registry description: Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. function: (CI_OnLineFunctionCode) search role: (CI_RoleCode) publisher VerticalCS: metaDataProperty: CommonMetaData: type: vertical informationSource: OGP revisionDate: 2006-11-28 isDeprecated: false identifier: urn:ogc:def:cs:EPSG::6499 name: Vertical CS. Axis: height (H). Orientation: up. UoM: meter. remarks: Used in vertical coordinate reference systems. axis: CoordinateSystemAxis: descriptionReference: urn:ogc:def:axis-name:EPSG::9904 identifier: urn:ogc:def:axis:EPSG::114 axisAbbrev: H axisDirection: up code: urn:ogc:def:crs:EPSG::5703 return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: 2018 USGS Lidar: Bayou Nezpique, LA alternateTitle: la2018_nezpique_m9128_metadata date: (CI_Date) date: 2018 dateType: (CI_DateTypeCode) creation date: (CI_Date) date: 2019-10-16 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: Anchor: InPort Catalog ID 60158 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inport/item/60158 protocol: WWW:LINK-1.0-http--link name: Full Metadata Record description: View the complete metadata record on InPort for more information about this dataset. function: (CI_OnLineFunctionCode) information role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9128/breaklines/ protocol: WWW:LINK-1.0-http--link name: Breaklines description: Link to data set breaklines. function: (CI_OnLineFunctionCode) download role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9128/supplemental/LA_Bayou_Nezpique_Lidar_2018_D18_Report.pdf protocol: WWW:LINK-1.0-http--link name: Dataset report description: Link to data set report. function: (CI_OnLineFunctionCode) download role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/ protocol: WWW:LINK-1.0-http--link name: NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) description: 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. function: (CI_OnLineFunctionCode) download role: (inapplicable) presentationForm: (unknown) abstract: The classified point cloud was produced to meet the specifications detailed in the USGS National Geospatial Program Lidar Base Specification, version 1.2 (2014). This project, overall, consists of a spring 2018 lidar survey collected over an Area of Interest (AOI) in south-central Louisiana covering a total of approximately 3,772 square miles and includes the parishes of Acadia, Jefferson Davis, Allen, Evangeline and portions of St. Landry, Lafayette, Vermillion, Rapides and Calcasieu. Lidar data and derivative products were collected and processed to conform to the USGS National Geospatial Program Lidar Base Specification, version 1.2 (2014) at National Enhanced Elevation Assessment (NEEA) Quality Level 1 (QL1) with an Aggregate Nominal Pulse Spacing (ANPS) of 0.35 meters or less and Aggregate Nominal Point Density (ANPD) of 8 points per square meter or greater. Deliverable lidar products include: classified lidar point cloud, hydro-flattening breaklines, bare-earth digital elevation models (DEMs), and lidar intensity images. The NOAA Office for Coastal Management (OCM) downloaded 6 data sets from this USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/ The data sets downloaded were: USGS_LPC_LA_Bayou_Nezpique_B1_2018/ Number of files: 840 USGS_LPC_LA_Bayou_Nezpique_B2_2018/ Number of files: 2008 USGS_LPC_LA_Bayou_Nezpique_B3_2018/ Number of files: 1796 USGS_LPC_LA_Bayou_Nezpique_B4_2018/ Number of files: 2276 USGS_LPC_LA_Bayou_Nezpique_B5_2018/ Number of files: 1892 USGS_LPC_LA_Bayou_Nezpique_B6_2018/ Number of files: 1250 These files were processed to the Data Access Viewer (DAV) and https. The total number of files downloaded and processed was 10,062. Hydro breaklines are also available. These data are available for download at the link provided in the URL section of this metadata record. Please note that these products have not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA or OCM. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data. purpose: This high resolution lidar data will support NRCS business needs for high resolution topographic elevation data and will also support the National Spatial Data Infrastructure (NSDI) and will advance USGS efforts related to the 3D Elevation Program and The National Map. credit: Optimal GEO, 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 Aug 01, 2023 at https://coast.noaa.gov/dataviewer. status: (MD_ProgressCode) completed pointOfContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact pointOfContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) notPlanned graphicOverview: (MD_BrowseGraphic) fileName: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9128/supplemental/la2018_nezpique_m9128.kmz fileDescription: This graphic displays the footprint for this lidar data set. fileType: KML descriptiveKeywords: (MD_Keywords) keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Science Keywords date: (missing) edition: 12.3 descriptiveKeywords: (MD_Keywords) keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA keyword: VERTICAL LOCATION > LAND SURFACE type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Location Keywords date: (missing) edition: 12.3 descriptiveKeywords: (MD_Keywords) keyword: LIDAR > Light Detection and Ranging type: (MD_KeywordTypeCode) instrument thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Instrument Keywords date: (missing) edition: 14.9 descriptiveKeywords: (MD_Keywords) keyword: Airplane > Airplane type: (MD_KeywordTypeCode) platform thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Platform Keywords date: (missing) edition: 14.9 descriptiveKeywords: (MD_Keywords) keyword: Hydro-flattening keyword: Hydrology keyword: erosion type: (MD_KeywordTypeCode) theme descriptiveKeywords: (MD_Keywords) keyword: Continent > North America > United States Of America > Louisiana > Acadia Parish keyword: Continent > North America > United States Of America > Louisiana > Allen Parish keyword: Continent > North America > United States Of America > Louisiana > Bayou Nezpique keyword: Continent > North America > United States Of America > Louisiana > Calcasieu Parish keyword: Continent > North America > United States Of America > Louisiana > Evangeline Parish keyword: Continent > North America > United States Of America > Louisiana > Jefferson Davis Parish keyword: Continent > North America > United States Of America > Louisiana > Lafayette Parish keyword: Continent > North America > United States Of America > Louisiana > Rapides Parish keyword: Continent > North America > United States Of America > Louisiana > St. Landry Parish keyword: Continent > North America > United States Of America > Louisiana > Vermilion Parish type: (MD_KeywordTypeCode) place descriptiveKeywords: (MD_Keywords) keyword: Lidar - partner (no harvest) type: (MD_KeywordTypeCode) project thesaurusName: (CI_Citation) title: InPort date: (inapplicable) resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Cite As: OCM Partners, [Date of Access]: 2018 USGS Lidar: Bayou Nezpique, LA [Data Date Range], https://www.fisheries.noaa.gov/inport/item/60158. resourceConstraints: (MD_Constraints) useLimitation: 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. resourceConstraints: (MD_LegalConstraints) accessConstraints: (MD_RestrictionCode) otherRestrictions useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Access Constraints: None | 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. | Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of Precision Aerial Reconnaissance, Inc, Optimal Geo, Inc, USGS, NOAA, the Office for Coastal Management or its partners. resourceConstraints: (MD_SecurityConstraints) classification: (MD_ClassificationCode) unclassified classificationSystem: (missing) handlingDescription: (missing) aggregationInfo: (MD_AggregateInformation) aggregateDataSetName: (CI_Citation) title: NOAA Data Management Plan (DMP) date: (unknown) identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: 60158 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/60158.pdf protocol: WWW:LINK-1.0-http--link name: NOAA Data Management Plan (DMP) description: NOAA Data Management Plan for this record on InPort. function: (CI_OnLineFunctionCode) information role: (inapplicable) associationType: (DS_AssociationTypeCode) crossReference spatialRepresentationType: (MD_SpatialRepresentationTypeCode) vector language: eng; US topicCategory: (MD_TopicCategoryCode) elevation environmentDescription: Terrasolid Version 19; Windows 10 Professional Operating System; Q:\Projects\21518_USGS_LA_Bayou_Lidar extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -93.132145881 eastBoundLongitude: -92.170772568 southBoundLatitude: 29.841048215 northBoundLatitude: 31.05010987 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: | Currentness: Ground Condition beginPosition: 2018-04-05 endPosition: 2018-06-08 supplementalInformation: Task Name: LA_Bayou Nezpique Lidar_2018_D18; USGS Task Order No. 140G1018F0024; Contract No. G17PC0007. Original Contractor: Precision Aerial Reconnaissance, LLC (PAR) (Lidar acquisition, calibration and initial deliverable products generation). Contract novated to and completed by Optimal GEO, Inc. The following are the USGS lidar fields in JSON: { "ldrinfo" : { "ldrspec" : "USGS National Geospatial Program Lidar Base Specification, v1.2", "ldrsens" : "Leica ALS70-HP", "ldrmaxnr" : "7", "ldrnps" : "0.35", "ldrdens" : "8", "ldranps" : "0.32", "ldradens" : "9.75", "ldrfltht" : "1125", "ldrfltsp" : "120", "ldrscana" : "40", "ldrscanr" : "53.4", "ldrpulsr" : "487.0", "ldrpulsd" : "10", "ldrpulsw" : "3", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.22", "ldrswatw" : "809.47", "ldrswato" : "30", "ldrgeoid" : "National Geodetic Survey (NGS) Geoid12B" }, "ldraccur" : { "ldrchacc" : "0.196", "rawnva" : "0.134", "rawnvan" : "102", "clsnva" : "0.134", "clsnvan" : "102", "clsvva" : "0.206", "clsvvan" : "84" }, "lasinfo" : { "lasver" : "1.4", "lasprf" : "6", "laswheld" : "Withheld (ignore) points were identified in these files using the standard LAS Withheld bit.", "lasolap" : "Swath "overage" points were identified in these files using the standard LAS overlap bit.", "lasintr" : "8", "lasclass" : { "clascode" : "1", "clasitem" : "Processed, but unclassified" }, "lasclass" : { "clascode" : "2", "clasitem" : "Bare-earth ground" }, "lasclass" : { "clascode" : "7", "clasitem" : "Low Noise" }, "lasclass" : { "clascode" : "9", "clasitem" : "Water" }, "lasclass" : { "clascode" : "10", "clasitem" : "Ignored Ground (Breakline Proximity)" }, "lasclass" : { "clascode" : "17", "clasitem" : "Bridge Decks" }, "lasclass" : { "clascode" : "18", "clasitem" : "High Noise" } }} return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: Zip version: (missing) fileDecompressionTechnique: Zip distributionFormat: (MD_Format) name: LAZ version: (missing) distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) distributor transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9128/details/9128 protocol: WWW:LINK-1.0-http--link name: Customized Download description: 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. Change to an orthometric vertical datum is one of the many options. function: (CI_OnLineFunctionCode) download transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9128/index.html protocol: WWW:LINK-1.0-http--link name: Bulk Download description: 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. They will be in an orthometric datum. function: (CI_OnLineFunctionCode) download return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) dataset report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Vertical Positional Accuracy evaluationMethodDescription: The tested RMSEz of the classified lidar data for checkpoints in the non-vegetated terrain is 6.8 cm, compared to the 10 cm specification. The NVA of the classified lidar data computed using RMSEz x 1.96 is 13.4 cm, compared to the 19.6 cm specification. The tested VVA of the classified lidar data computed using the 95th percentile is equal to 22.6 cm, compared to the 29.4 cm specification. result: (missing) report: (DQ_CompletenessCommission) nameOfMeasure: Completeness Report evaluationMethodDescription: LAS data files include all data points collected that fall within the Buffered Project Area (BPA). No points have been removed or excluded. A visual qualitative assessment was performed to ensure data completeness. No void areas or missing data exist. The raw point cloud is of good quality and data passes Non-Vegetated Vertical Accuracy specifications. result: (missing) report: (DQ_ConceptualConsistency) nameOfMeasure: Conceptual Consistency evaluationMethodDescription: Data coverage reflects the entire Buffered Project Area (BPA) specified for this project. result: (missing) lineage: (LI_Lineage) statement: (missing) processStep: (LI_ProcessStep) description: Florabama Geospatial Solutions (FGS) collected 284 check points (98 Control, 102 NVA, 84 VVA) in different classifications spread throughout the project area. The control point coordinate values for this project are referenced to National Geodetic Survey (NGS) control monuments in the National Spatial Reference System (NSRS). Horizontal datum is referenced to UTM, NAD1983, Zone 15 North. Vertical values represent the North American Vertical Datum of 1988 (NAVD88). GEOID 12B was used to translate the ellipsoid heights to orthometric heights. FGS used LSU C4G Real Time Network Data Correction Service to determine coordinate values for the survey control points and logged raw data at the rovers for post-processing. FGS also observed static data on 10 base station sites spread evenly throughout the project area. All site calibration points were oberved for at least ten (10) minutes and all LiDAR control points were observed for at least six (6) minutes. A site calibration was performed using the data that was collected via LSU C4G RTN. Existing control throughout and surrounding the project area were evaluated against published values and OPUS solutions held as fixed control. The site calibration was performed using Trimble Business Center Software. dateTime: DateTime: 2018-03-20T00:00:00 processStep: (LI_ProcessStep) description: Firstly, the individual lidar mission points in Leica raw scan format were output to ASPRS LAS format using Leica Cloud Pro software, initially using as default values those resulting from the last successfully calibrated mission for the lidar scanner system. Subsequently, Bayes StripAlign software (version 2.04B) was utilized for LiDAR calibration, assessment of calibration validity, and assessment of point cloud alignment to control. If a calibration error greater than allowable according to project specifications is observed within a mission, the roll, pitch and scanner scale corrections that need to be applied to refine the calibration are calculated and the mission in question is reprocessed and re-validated. Additionally, data collected by the lidar unit is reviewed for completeness, acceptable density, and to make sure all data is captured without errors or corrupted values. dateTime: DateTime: 2018-06-15T00:00:00 processStep: (LI_ProcessStep) description: The raw point cloud was segmented into a contiguous set of 1,000 meter x 1,000 meter tiles based on the U.S. National Grid tiling and naming scheme. After tiling, Terrasolid TerraScan software ground classification routines were run to generate an initial point classification, primarily identifying ground and noise. Subsequent to automated classification, manual review and edit of point classifications was performed to meet project classification specifications. The point classifications used are as follows: 1 - Processed, but unclassified; 2 - Bare-earth ground; 7 - Low Noise; 9 - Water; 10 - Ignored Ground (Breakline Proximity); 17 - Bridge Decks; and, 18 - High Noise. Concurrently with manual point classification, heads-up digitizing of 2D hydro-flattening breaklines of inland streams and rivers with a 100 foot nominal width as well as inland ponds and lakes of 2 acres or greater surface area was performed. Breakline elevation values were then derived from the point cloud and assigned to all inland ponds and lakes, inland pond and lake islands, and inland stream and river islands using TerraModeler functionality. Elevation values were assigned to all inland streams and rivers using TerraScan. All ground (ASPRS Class 2) lidar data falling within the collected inland water body breaklines were then classified as water (ASPRS Class 9) using TerraScan macro functionality. A buffer of 0.3 meters was used around each hydro-flattened feature to de-conflict discreet breakline vertices and segments from lidar ground returns; this was accomplished by reclassifying the ground points within the buffer to Ignored Ground (ASPRS Class 10). LAStools software was used to perform final statistical analysis of the classes in the LAS files, on a per tile level to verify final classification metrics as well as completeness and validity of LAS header information. dateTime: DateTime: 2018-10-16T00:00:00 processStep: (LI_ProcessStep) description: The NOAA Office for Coastal Management (OCM) downloaded 6 data sets from this USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/ The data sets downloaded were: USGS_LPC_LA_Bayou_Nezpique_B1_2018/ Number of files: 840 USGS_LPC_LA_Bayou_Nezpique_B2_2018/ Number of files: 2008 USGS_LPC_LA_Bayou_Nezpique_B3_2018/ Number of files: 1796 USGS_LPC_LA_Bayou_Nezpique_B4_2018/ Number of files: 2276 USGS_LPC_LA_Bayou_Nezpique_B5_2018/ Number of files: 1892 USGS_LPC_LA_Bayou_Nezpique_B6_2018/ Number of files: 1250 These files were processed to the Data Access Viewer (DAV) and https. The total number of files downloaded and processed was 10,062. The data were in UTM Zone 15 (NAD83 2011), meters, coordinates and NAVD88 (Geoid12B) elevations in meters. The data were classified as: 1 - Unclassified, 2 - Ground, 7 - Low Noise, 9 - Water, 10 - Ignored Ground, 17 - Bridge Decks, 18 - High Noise. OCM processed all classifications of points to the Digital Coast Data Access Viewer (DAV). Classes available on the DAV are: 1, 2, 7, 9, 10, 17, 18. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. An internal OCM script was run to check the number of points by classification and by flight ID and the gps and intensity ranges. 2. Internal OCM scripts were run on the laz files to convert from orthometric (NAVD88) elevations to ellipsoid elevations using the Geoid 12B model, to convert from UTM Zone 15 (NAD83 2011) coordinates in meters to geographic coordinates, to assign the geokeys, to sort the data by gps time and zip the data to database and to http. dateTime: DateTime: 2020-06-29T00:00:00 processor: (CI_ResponsibleParty) organisationName: Office for Coastal Management role: (CI_RoleCode) processor source: (LI_Source) description: Source Contribution: This data source was used (along with the airborne GPS/IMU Data) to georeference the lidar point cloud data; additionally, a subset of the collected surveyed data points were used solely as independent ground control to assess the accuracy of the lidar point cloud. sourceCitation: (CI_Citation) title: Ground Control for Bayou Nezpique, LA Lidar Project date: (CI_Date) date: 2018-03-20 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Florabama Geospatial Solutions, LLC role: (CI_RoleCode) originator sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 2018-01-26 endPosition: 2018-03-20 source: (LI_Source) description: Source Contribution: This data source, once calibrated and georeferenced, resulted in the point cloud from which the derivative deliverable products were produced. sourceCitation: (CI_Citation) title: Lidar Point Cloud Acquisition for Bayou Nezpique, LA Lidar Project date: (CI_Date) date: 2018-06-08 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Precision Aerial Reconnaissance, LLC role: (CI_RoleCode) originator sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 2018-04-05 endPosition: 2018-06-08 processStep: (LI_ProcessStep) description: The vertical values in this data set have been converted to reference North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters, using the GEOID18 grids provided by the National Geodetic Survey. Any datum and projection transformations were then done with the Office for Coastal Management 'datum_shift' program. Compression to an LAZ file was done with the LAStools 'laszip' program and can be unzipped with the same free program (laszip.org) Processing notes: dateTime: DateTime: 2023-08-01T07:19:18 processor: (CI_ResponsibleParty) individualName: NOAA Office for Coastal Management contactInfo: (CI_Contact) address: (CI_Address) electronicMailAddress: coastal.info@noaa.gov role: (CI_RoleCode) processor | |