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Metadata Identifier: gov.noaa.csc.maps:ca2007_cdwr_sanjoaquindelta_m2523

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 2007 California Department of Water Resources Topographic LiDAR: San Joaquin Delta These data are from LIDAR flights of the Sacramento-San Joaquin Delta conducted during late January and February of 2007. The work was conducted under contract issued by California Department of Water Resources to URS Corporation. The prime LIDAR creation subcontractor was EarthData International, (later Fugro EarthData), also known as EDI. The principal aerial survey firm under subcontract to EDI was Airborne 1 Corporation. In effect, Airborne 1 performed the aerial survey, and EDI did the processing and deliverables preparation. Also involved in the contract to URS was an independent QA/QC firm, Spectrum Mapping LLC. The data was delivered to CSC as unclassified, multiple return elevation measurements and intensity in LAS V1.0 format. The NOAA CSC used an unsupervised classification algorithm to classify the data into the following ASPRS classifications: Class 1 (Unclassified), Class 2 (Ground), and Class 7 (Noise) . Class 2 includes bare earth points and water points.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 2007 California Department of Water Resources Topographic LiDAR: San Joaquin Delta
  • 2013-08-01
2 None
    1 North American Datum 1983
    • 2007-01-19
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    CI_Series

    none found
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    CI_ResponsibleParty

    Count Component Individual Organization Position Email Role Linkage
    1 resourceProvider http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
    1 California Department of Water Resources pointOfContact
    1 California Department of Water Resources (CDWR) originator
    1 NOAA CSC (originator) DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce coastal.info@noaa.gov originator http://coast.noaa.gov
    1 NOAA CSC (publisher) DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce coastal.info@noaa.gov publisher http://coast.noaa.gov
    1 NOAA CSC(distributor) DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce coastal.info@noaa.gov distributor http://coast.noaa.gov
    1 NOAA CSC (processor) DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce coastal.info@noaa.gov processor http://coast.noaa.gov
    1 EPSG Registry European Petroleum Survey Group publisher http://www.epsg-registry.org/
    1 Mike Sutherland(author) Mike Sutherland DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce mike.sutherland@noaa.gov author
    1 Mike Sutherland Mike Sutherland DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce mike.sutherland@noaa.gov distributor
    1 Mike Sutherland (processor) Mike Sutherland DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce mike.sutherland@noaa.gov processor
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    CI_OnlineResource

    Count Component Linkage Name Description Function
    4 http://coast.noaa.gov
    1 http://www.epsg-registry.org/ European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search
    1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269 NAD83 Link to Geographic Markup Language (GML) description of reference system. information
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    MD_Identifier or RS_Identifier

    Count Component Code
    1 Ellipsoid in Meters
    1 urn:ogc:def:crs:EPSG::4269
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    EX_Extent

    Bounding Box Temporal Extent
    Count Component Description West East North South Start End
    1 -122.140593 -121.182752 38.592147 37.601160 2007-01-01 2007-02-01
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    EX_GeographicBoundingBox

    Count Component West East North South
    1 -122.140593 -121.182752 38.592147 37.601160
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    EX_TemporalExtent

    Count Component Start End
    1 2007-01-01 2007-02-01
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    MD_Format

    Count Component Name Version specification
    1 LAZ
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    MD_Medium

    none found
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    MD_Constraints

    Count Component Use Limitation
    1 Lidar Use Limitation These data depict the elevations at the time of the survey and are only accurate for that time. 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. Any conclusions drawn from analysis of this information are not the responsibility of NOAA or any of its partners. These data are NOT to be used for navigational purposes.
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    MD_ReferenceSystem

    Count Component Code Authority Title
    1 Ellipsoid Ellipsoid in Meters
    1 NAD83 urn:ogc:def:crs:EPSG::4269 North American Datum 1983
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    MD_GridSpatialRepresentation

    none found
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    MD_Georeferenceable or MI_Georeferenceable

    none found
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    MD_Georectified or MI_Georectified

    none found
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    MD_Dimension

    none found
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    MD_CoverageDescription or MI_CoverageDescription

    none found
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    MD_Band or MI_Band

    none found
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    MI_RangeElementDescription

    none found
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    MD_AggregateInformation

    none found
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    LE_Source or LI_Source

    none found
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    LE_ProcessStep or LI_ProcessStep

    Count Component DateTime Description
    1 2013-04-01T00:00:00 The NOAA Coastal Services Center (CSC) received topographic files in LAS format. The files contained lidar elevation and intensity measurements. The data were received in projected UTM Zone 10N, NAD83 coordinates and were vertically referenced to NAVD88. The vertical units of the data were meters. CSC performed the following processing for data storage and Digital Coast provisioning purposes: 1. The unclassified LAS files were classified by NOAA CSC using MARS7 software. The data contains Class 1 (Unclassified), Class 2 (Ground), and Class 7 (Noise). 2. The LAS files were retiled into 1500x1500 meters tiles using MARS7 software. 3. The LAS files' Class 2 (Ground) points were rechecked for High/Low Noise. If points were found they were removed from the data. 4. Horizontally the data was converted from projected UTM Zone 10N coordinates (meters) to geographic NAD83 coordinates (decimal degrees). 5. Vertically the data was converted from orthometric NAVD88 heights (meters) to ellipsoidal NAD83 (meters) using GEOID03 (Geoid model assumed). 6. The data were converted to LAZ format.
    1 2013-10-17T00:00:00 The NOAA National Geophysical Data Center (NGDC) received lidar data files via ftp transfer from the NOAA Coastal Services Center. The data are currently being served via NOAA CSC Digital Coast at http://www.csc.noaa.gov/digitalcoast/. The data can be used to re-populate the system. The data are archived in LAS or LAZ format. The LAS format is an industry standard for LiDAR data developed by the American Society of Photogrammetry and Remote Sensing (ASPRS); LAZ is a loseless compressed version of LAS developed by Martin Isenburg (http://www.laszip.org/). The data are exclusively in geographic coordinates (either NAD83 or ITRF94). The data are referenced vertically to the ellipsoid (either GRS80 or ITRF94), allowing for the ability to apply the most up to date geoid model when transforming to orthometric heights.
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    MI_Operation

    none found
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    MI_Platform

    none found
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    MI_Instrument

    none found
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