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Metadata Identifier: gov.noaa.ngdc.mgg.dem:720

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 Northern Gulf Coast Digital Elevation Model NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions in the Gulf of Mexico. These integrated bathymetric-topographic DEMs were developed for NOAA Coastal Survey Development Laboratory (CSDL) through the American Recovery and Reinvestment Act (ARRA) of 2009 to evaluate the utility of the Vertical Datum Transformation tool (VDatum), developed jointly by NOAA's Office of Coast Survey (OCS), National Geodetic Survey (NGS), and Center for Operational Oceanographic Products and Services (CO-OPS). Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. Coastal Services Center (CSC), the U.S. Office of Coast Survey (OCS), the U.S. Army Corps of Engineers (USACE), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of North American Vertical Datum of 1988 (NAVD 88), Mean High Water (MHW) or Mean Lower Low Water (MLLW) and horizontal datum of North American Datum of 1983 (NAD 83). Cell size ranges from 1/3 arc-second (~10 meters) to 1 arc-second (~30 meters). The NOAA VDatum DEM Project was funded by the American Recovery and Reinvestment Act (ARRA) of 2009 (http://www.recovery.gov/).
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SV_Identification

Count Component Title Type
1 Footprints ArcGIS Map Service Digital Elevation Model Footprints ArcGIS Map Service ArcGIS Map Service
1 Color Shaded Relief ArcGIS Map Service Digital Elevation Models: Color Shaded Relief ArcGIS Image Service ArcGIS Image Service
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CI_Citation

Count Component Title Date Citation Identifier
1 Digital Elevation Model Footprints ArcGIS Map Service
  • 2011-02-15
1 Digital Elevation Models of Biloxi, MS
  • 2009-01-01
1 Digital Elevation Models of Mobile, AL
  • 2009-01-01
1 Digital Elevation Models of New Orleans, LA
  • 2009-01-01
1 Digital Elevation Models of Panama City, FL
  • 2009-01-01
1 Digital Elevation Models of Southern Louisiana
  • 2009-01-01
1 Digital Elevation Models of the Northern Gulf Coast: Procedures, Data Sources, and Analysis
  • 2010-12-30
1 Digital Elevation Models: Color Shaded Relief ArcGIS Image Service
  • 2011-10-19
1 ENC Digital Hydrographic Charts
  • 2009-01-01
1 FDEM contoured lidar
  • 2009-01-01
1 NASA/GCMD Data Center Keywords
    1 NASA/GCMD Data Resolution Keywords
      1 NASA/GCMD Earth Science Keywords
        1 NASA/GCMD Location Keywords
          1 NASA/GCMD Platform Keywords
            2 NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords NASA/GCMD Services Keywords
              1 NOAA VDatum DEM Project
              • 2009-12-01
              1 NOS Hydrographic Surveys
              • 2009-01-01
              1 North American Datum 1983
              • 2007-01-19
              1 North American Vertical Datum 1988
              • 2012-08-10
              1 Northern Gulf Coast Digital Elevation Model
              • 2010-12-30
              1 USGS National Elevation Dataset
              • 2005-01-01
              2 Uncontrolled
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                CI_Series

                Count Component Name Issue Identification Page
                1 NOAA VDatum DEMs Northern Gulf Coast NAVD 88
                1 NOAA VDatum DEMs Named by primary coastal city, state in DEM.
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                CI_ResponsibleParty

                Count Component Individual Organization Position Email Role Linkage
                2 resourceProvider http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
                15 Citation URL http://www.ngdc.noaa.gov/dem/squareCellGrid/download/720
                2 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
                1 Barry W. Eakins originator
                1 Christopher J. Amante originator
                6 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce publisher http://ngdc.noaa.gov/mgg/coastal/coastal.html
                3 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher
                2 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator
                2 DEM Info DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DEM Information dem.info@noaa.gov pointOfContact
                5 DOC/NOAA/NGDC > National Geophysical Data Cebter, NOAA, U.S Department of Commerce originator
                1 DOC/NOAA/NOS/OCS/CSDL > Coast Survey Development Laboratory, OCS, NOS, NOAA, U.S. Department of Commerce originator
                2 EPSG Registry European Petroleum Survey Group publisher http://www.epsg-registry.org/
                1 Florida Department of Emergency Management (FDEM) originator
                2 Varner, Jesse Jesse Varner DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Jesse.Varner@noaa.gov pointOfContact
                1 Kelly Carignan Kelly Carignan DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce kelly.carignan@noaa.gov pointOfContact
                1 Lisa A. Taylor originator
                1 Matthew R. Love originator
                2 Matthew R. Love Matthew R. Love DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Matthew.Love@noaa.gov pointOfContact
                2 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
                1 NOAA/OCS > Office of Coastal Systems Laboratory, OCS, NOAA, U.S. Department of Commerce originator
                1 USGS > United States Geological Survey, U.S. Department of Interior originator
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                CI_OnlineResource

                Count Component Linkage Name Description Function
                2 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
                2 GCMD Keyword Page http://gcmd.nasa.gov/learn/keyword_list.html GCMD Keywords Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. information
                2 http://gis.ngdc.noaa.gov/arcgis/rest/services/dem_hillshades/ImageServer Digital Elevation Models: Color Shaded Relief ArcGIS Image Service REST endpoint for Digital Elevation Models: Color Shaded Relief ArcGIS image service search
                1 http://gis.ngdc.noaa.gov/arcgis/services/dem_hillshades/ImageServer/WMSServer?request=GetCapabilities%26service=WMS Digital Elevation Models: Color Shaded Relief Web Map Service (WMS) Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Models: Color Shaded Relief search
                2 http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_extents/MapServer DEM Footprints ArcGIS Map Service A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available from NOAA's National Geophysical Data Center. search
                1 http://maps.ngdc.noaa.gov/soap/web_mercator/dem_extents/MapServer/WMSServer?request=GetCapabilities%26service=WMS Digital Elevation Model Footprints Web Map Service (WMS) Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Model Footprints search
                1 http://nctr.pmel.noaa.gov/ Digital Elevation Models of Biloxi, MS In March 2007, NGDC, an office of NOAA, developed a bathymetric-topographic DEM centererd on Biloxi, Mississippi for the Pacific Marine Environmental Laboratory (PMEL) NOAA Center for Tsunami Research (http://nctr.pmel.noaa.gov/). download
                1 http://ned.usgs.gov/ USGS 1 Arc-Second NED Topographic elevation dataset download
                2 http://ngdc.noaa.gov/mgg/coastal/coastal.html Integrated Models of Coastal Relief at NGDC Please see NGDC's website for more information about Coastal DEMs at NGDC. information
                1 http://noaa.maps.arcgis.com/home/item.html?id=d41f39c8a6684c54b62c8f1ab731d5ad NOAA GeoPlatform Entry for Digital Elevation Model Footprints NOAA GeoPlatform listing for Digital Elevation Model Footprints ArcGIS Map Service information
                1 http://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769 NOAA GeoPlatform Entry for Digital Elevation Models: Color Shaded Relief NOAA GeoPlatform listing for Digital Elevation Models: Color Shaded Relief information
                2 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
                1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5103 NAVD88 Link to Geographic Markup Language (GML) description of reference system. information
                1 http://www.nauticalcharts.noaa.gov/ OCS ENC electronic navigational charts Digital hydrographic elevation data download
                1 http://www.nauticalcharts.noaa.gov/csdl/welcome.htm CSDL non-superceded NOS Hydrographic Survey Database Digital database of non-superceded NOS hydrographic surveys that date back to the late 19th century. download
                2 http://www.ngdc.noaa.gov/dem/squareCellGrid/download/720 Northern Gulf Coast 1 arc-second NAVD 88 DEM Download page for accessing DEM, metadata record and development report. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/720?gridFormat=ESRI+Arc+ASCII Northern Gulf Coast Digital Elevation Model ASCII DEM Download DEM, metadata and readme file. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/720?gridFormat=netCDF Northern Gulf Coast Digital Elevation Model netCDF DEM Download NetCDF DEM, metadata and Readme file. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/720 Digital Elevation Models of the Northern Gulf Coast: Procedures, Data Sources and Analysis Report describing the development of the Northern Gulf Coast DEMs download
                2 DEM Map Search http://www.ngdc.noaa.gov/dem/squareCellGrid/map Map Interface Graphic geo-spatial search tool for locating completed and planned DEMs. search
                2 http://www.ngdc.noaa.gov/dem/squareCellGrid/search DEM text search tool Text search tool for locating completed and planned NTHMP tsunami inundation DEMs. search
                5 http://www.ngdc.noaa.gov/mgg/inundation/vdatum/vdatum.html NOAA VDatum DEM Project Project web page. information
                1 http://www.sad.usace.army.mil/ FDEM contoured lidar FDEM topographic lidar contours download
                1 http://wwwdev.ngdc.noaa.gov/mgg/inundation/hurricane/hfip.html Digital Elevation Models of Southern Louisiana NGDC, an office of NOAA, developed two bathymetric-topographic structured DEMs and two bathymetric-topographic unstructured DEMs of southern Louisiana. The DEMs were developed for the Hurricane Forecast Improvement Project (HFIP), with the purpose of developing a new methodology for building companion structured and unstructured DEMs. download
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                MD_Identifier or RS_Identifier

                Count Component Code
                1 Digital Elevation Model
                1 NOAA VDatum DEM Project
                1 urn:ogc:def:crs:EPSG::4269
                1 urn:ogc:def:datum:EPSG::5103
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                EX_Extent

                Bounding Box Temporal Extent
                Count Component Description West East North South Start End
                1 -90.75 -85.0 31.25 28.5 1873-01-01 2003-01-01
                2 -180 180 90 -90
                2 1873-01-01 2003-01-01
                2
                1 2009-01-01 2009-01-01
                1 2009-01-01 2010-01-01
                2 2010-01-01 2010-01-01
                1 2007-01-01 2007-01-01
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                EX_GeographicBoundingBox

                Count Component West East North South
                1 -90.75 -85.0 31.25 28.5
                2 -180 180 90 -90
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                EX_TemporalExtent

                Count Component Start End
                3 1873-01-01 2003-01-01
                2
                1 2009-01-01 2009-01-01
                1 2009-01-01 2010-01-01
                2 2010-01-01 2010-01-01
                1 2007-01-01 2007-01-01
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                MD_Format

                Count Component Name Version specification
                1 ESRI Arc ASCII 1 ASCII text version of ESRI ArcGIS raster format
                1 netCDF 3.6.2
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                MD_Medium

                none found
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                MD_Constraints

                Count Component Use Limitation
                1 not for navigation Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series.
                1 copyright statement Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
                1 NOAA disclaimer While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
                2 These data not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For official navigation products, please refer to the U.S. nautical charts available from the NOAA Office of Coast Survey: http://www.nauticalcharts.noaa.gov.
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                MD_ReferenceSystem

                Count Component Code Authority Title
                1 NAD 83 urn:ogc:def:crs:EPSG::4269 North American Datum 1983
                1 NAVD 88 urn:ogc:def:datum:EPSG::5103 North American Vertical Datum 1988
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                MD_GridSpatialRepresentation

                Count Component Number of Dimensions Cell Geometry Code
                1 3 area
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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

                Count Component Name Code Size
                1 row 20701
                1 column 9901
                1 vertical 1
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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

                Count Component Title Code Association Type Code
                1 Digital Elevation Models of the Northern Gulf Coast: Procedures, Data Sources, and Analysis crossReference
                1 NOAA VDatum DEM Project largerWorkCitation
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                LE_Source or LI_Source

                Count Component Title Date Description
                1 Digital Elevation Models of Biloxi, MS 2009-01-01 Source Contribution: Digital Elevation Model ; Source Type: online
                1 Digital Elevation Models of Mobile, AL 2009-01-01 Source Contribution: Digital Elevation Model ; Source Type: online
                1 Digital Elevation Models of New Orleans, LA 2009-01-01 Source Contribution: Digital Elevation Model ; Source Type: online
                1 Digital Elevation Models of Panama City, FL 2009-01-01 Source Contribution: Digital Elevation Model ; Source Type: online
                1 Digital Elevation Models of Southern Louisiana 2009-01-01 Source Contribution: Digital Elevation Model ; Source Type: online
                1 ENC Digital Hydrographic Charts 2009-01-01 Source Contribution: Hydrographic surveys provided to NGDC by CSDL ; Source Type: digital files via FTP
                1 FDEM contoured lidar 2009-01-01 Source Contribution: Digital 2 foot contours; Source Type: online
                1 NOS Hydrographic Surveys 2009-01-01 Source Contribution: Hydrographic surveys provided to NGDC by CSDL ; Source Type: digital files via FTP
                1 USGS National Elevation Dataset 2005-01-01 Source Contribution: coastal lidar ; Source Type: online
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                LE_ProcessStep or LI_ProcessStep

                Count Component DateTime Description
                1 2010-08-28T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of NAD 83 geographic and NAVD 88, respectively, using Proj4 and VDatum transformation tool. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection.
                1 2010-09-10T00:00:00 Datasets were visually inspected for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
                1 2010-10-24T00:00:00 Coastline datasets were merged and adjusted to fit satellite imagery.
                1 2010-11-14T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 1 arc-second grid that interpolated to fill empty cells. Points extracted every 10 meters along the coastline were also included to ensure that the bathymetric grid reached zero at the coast. The resulting Arc ASCII grid was clipped to the coastline to remove values over land.
                1 2010-11-17T00:00:00 The NAVD 88 DEM was quantitatively evaluated by comparing with source datasets and with elevation values extracted from NGS geodetic monuments. It was visually evaluated by converting to UTM-zone coordinates (units of meters horizontally and vertically) and then creating a slope grid to identify gridding artifacts in the DEM.
                1 2010-11-23T00:00:00 xyz files for each input dataset were gridded using MB-System's 'mbgrid' tool, which utilizes a high-tension spline interpolation method to fill grid cells with no input elevation values. Preferential weighting was given to more recent, higher-accuracy datasets. Gridding was performed with a 5% data buffer.
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                MI_Operation

                Count Component Code Type Status Description
                1 NOAA VDatum DEM Project
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                MI_Platform

                Count Component Code Description
                1 Digital Elevation Model
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                MI_Instrument

                Count Component Code Type Description
                2 Light Detection and Ranging
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