Back to Collection NOAA/NESDIS/NGDC/MGG/DEM
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Metadata Identifier: gov.noaa.ngdc.mgg.dem:640

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 Cordova, Alaska 8/15 arc-second MHHW Coastal Digital Elevation Model NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the National Tsunami Hazard Mitigation Program's (NTHMP) efforts to improve community preparedness and hazard mitigation. These integrated bathymetric-topographic DEMs are used to support tsunami and coastal inundation mapping. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to various vertical and horizontal datums depending on the specific modeling requirements of each State. For specific datum information on each DEM, refer to the appropriate DEM documentation. Cell sizes also vary depending on the specification required by modelers in each State, but typically range from 8/15 arc-second (~16 meters) to 8 arc-seconds (~240 meters).
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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
Unresolved Xlinks
DEM Global Mosaic ArcGIS Image Service at: /gmi:MI_Metadata/gmd:identificationInfo[2]
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CI_Citation

Count Component Title Date Citation Identifier
1 Cordova, Alaska 8/15 arc-second MHHW Coastal Digital Elevation Model
    2009-04-20
1 Cordova_AK_8_15s_MHHW_DEM
    2016-06-21
1 Digital Elevation Model Footprints ArcGIS Map Service
    2011-02-15
1 Digital Elevation Models of Prince William Sound, Alaska: Procedures, Data Sources, and Analysis
    2009-04-20
1 Electronic Navigational Charts
    2009-01-01
1 Global Change Master Directory (GCMD) Location Keywords
    1 Global Change Master Directory (GCMD) Platform Keywords
      1 Global Change Master Directory (GCMD) Science Keywords
        1 NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords Global Change Master Directory (GCMD) Service Keywords
          2018-03-15
        1 Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
          1 Mean Higher High Water height
            2012-08-05
          1 NGDC Multibeam Surveys
            2009-01-01
          1 NGDC Trackline Surveys
            2009-01-01
          1 NOS Hydrographic Surveys
            2009-01-01
          1 NTHMP DEM Project
            2009-12-01
          1 Shuttle Radar Topography Mission (SRTM)
            2009-01-01
          1 The Scientific Data Stewardship Maturity Assessment Model Template
            2015-06-23
          doi:10.10.6084/m9.figshare.1211954
          1 USACE Hydrographic Surveys
            2009-01-01
          1 USGS NED topography
            2009-01-01
          2 Uncontrolled
            1 World Geodetic System 1984
              2007-08-27
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            CI_Series

            Count Component Name Issue Identification Page
            1 NTHMP DEMs Cordova, Alaska
            1 NTHMP 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::4326
            11
            1 Anna Milan Anna Milan DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Metadata Specialist Anna.Milan@noaa.gov pointOfContact
            1 Barry W. Eakins originator
            4 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce publisher https://ngdc.noaa.gov/mgg/coastal/coastal.html
            3 DEM Info DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DEM Information dem.info@noaa.gov pointOfContact
            1 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce publisher
            3 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher
            5 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator
            1 DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce originator
            1 DOI/USGS > U.S. Geological Survey, Department of the Interior originator
            1 Elliot D. Lim originator
            2 EPSG Registry European Petroleum Survey Group publisher http://www.epsg-registry.org/
            1 GCMD Landing Page Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) publisher https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
            1 Varner, Jesse Jesse Varner DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Jesse.Varner@noaa.gov pointOfContact
            1 Kelly Carignan Kelly Carignan DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce kelly.carignan@noaa.gov pointOfContact
            1 NASA > National Aeronautics and Space Administration originator
            1 Peng, Ge CICS-NC/NCEI author
            1 R. Jason Caldwell originator
            1 U.S. Army Corps of Engineers, Alaska District originator
            Unresolved Xlinks
            NCEI (publisher) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[1]
            Barry Eakins at: /gmi:MI_Metadata/gmd:dataQualityInfo[2]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[1]/gmi:LE_ProcessStep[1]/gmd:processor[1]
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            CI_OnlineResource

            Count Component Linkage Name Description Function
            1
            1 http://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_global_mosaic/ImageServer DEM Global Mosaic (Elevation Values) A global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. search
            1 http://ned.usgs.gov/ USGS National Elevation Dataset Digital database of U.S. topography, in raster form (DEM) download
            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::4326 WGS 84 GML of World Geodetic System 1984 coordinate reference system. information
            1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::5869 MHHW height GML for mean higher high water vertical coordinate reference system (in meters) available from the epsg-registry. information
            1 http://www.nauticalcharts.noaa.gov/mcd/enc/index.htm OCS Electronic Navigational Charts Digital database of NOAA nautical chart information. download
            1 http://www.poa.usace.army.mil/ USACE Alaska District Hydrographic Surveys Digital database of hydrographic surveys in Alaska download
            1 https://doi.org/10.6084/m9.figshare.1211954 The Scientific Data Stewardship Maturity Assessment Model Template Landing page for quality evaluation procedure. information
            1 https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information
            1 https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_global_mosaic_hillshade/ImageServer DEM Global Mosaic (Color Shaded Relief) Color shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. search
            1 https://lta.cr.usgs.gov/SRTM1Arc Shuttle Radar Topography Mission global topography download
            1 https://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_extents/MapServer Digital Elevation Model Footprints ArcGIS Dynamic Map Service REST endpoint for Digital Elevation Model Footprints ArcGIS dynamic map service search
            1 https://maps.ngdc.noaa.gov/arcgis/services/web_mercator/dem_extents/MapServer/WMSServer?request=GetCapabilities&service=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 DEM map search https://maps.ngdc.noaa.gov/viewers/bathymetry/?layers=dem Bathymetric Data Viewer The Bathymetric Data Viewer is an interactive map providing discovery, descriptions, and download capability for bathymetric survey data and digital elevation models archived at NOAA's National Centers for Environmental Information (NCEI). search
            1 https://ngdc.noaa.gov/mgg/coastal/coastal.html Integrated Models of Coastal Relief at NCEI information
            1 https://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 https://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html NOS Hydrographic Survey Database Digital database of NOS hydrographic surveys that date back to the late 19th century. download
            1 https://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html NGDC Multibeam Survey Database Digital database of NGDC multibeam surveys. download
            1 DEM text search https://www.ngdc.noaa.gov/mgg/coastal DEM text search Text search for locating completed and planned DEMs. search
            1 https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/cordova_815_mhhw_2009.pdf Digital Elevation Models of Prince William Sound, Alaska: Procedures, Data Sources and Analysis Report describing the development of the Prince William Sound DEMs download
            1 https://www.ngdc.noaa.gov/mgg/geodas/trackline.html NGDC Trackline Survey Database Digital database of NGDC Trackline surveys. download
            1 https://www.ngdc.noaa.gov/thredds/dodsC/regional/cordova_815_mhhw_2009.nc.html OPeNDAP Dataset Access Form OPeNDAP Dataset Access Form download
            1 https://www.ngdc.noaa.gov/thredds/fileServer/regional/cordova_815_mhhw_2009.nc Download NetCDF File Download NetCDF File download
            1 https://www.ngdc.noaa.gov/thredds/ncml/regional/cordova_815_mhhw_2009.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fcordova_815_mhhw_2009.nc NetCDF Markup Language file NetCDF Markup Language file information
            1 https://www.ngdc.noaa.gov/thredds/ncss/regional/cordova_815_mhhw_2009.nc/dataset.html Download a subset of the NetCDF Download a subset of the NetCDF download
            1 https://www.ngdc.noaa.gov/thredds/wcs/regional/cordova_815_mhhw_2009.nc?service=WCS&version=1.0.0&request=GetCapabilities Web Coverage Service GetCapabilities Web Coverage Service GetCapabilities information
            1 https://www.ngdc.noaa.gov/thredds/wms/regional/cordova_815_mhhw_2009.nc?service=WMS&version=1.3.0&request=GetCapabilities Web Map Service GetCapabilities Web Map Service GetCapabilities information
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            MD_Identifier or RS_Identifier

            Count Component Code
            1 Digital Elevation Model
            1 MHHW
            1 MM-Stew
            1 NTHMP DEM Gridding Project
            1 doi:10.10.6084/m9.figshare.1211954
            1 urn:ogc:def:crs:EPSG::4326
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            EX_Extent

            Bounding Box Temporal Extent
            Count Component Description West East North South Start End
            1 -145.93 -145.49 60.75 60.49 1902-01-01 2008-01-01
            1 -180 180 90 -90
            1 1902-01-01 2006-01-01
            2
            1
            1 1996-01-01 2004-01-01
            1 1970-01-01 1999-01-01
            1
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            EX_GeographicBoundingBox

            Count Component West East North South
            1 -145.93 -145.49 60.75 60.49
            1 -180 180 90 -90
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            EX_TemporalExtent

            Count Component Start End
            1 1902-01-01 2008-01-01
            1 1902-01-01 2006-01-01
            4
            1 1996-01-01 2004-01-01
            1 1970-01-01 1999-01-01
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            MD_Format

            Count Component Name Version specification
            2 netCDF 1 netCDF
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            MD_Medium

            none found
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            MD_Constraints

            Count Component Use Limitation
            1 copyright statement Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
            1 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.
            Unresolved Xlinks
            not for navigation at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[1]
            NOAA disclaimer at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[3]
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            MD_ReferenceSystem

            Count Component Code Authority Title
            1 MHHW MHHW Mean Higher High Water height
            1 WGS84 urn:ogc:def:crs:EPSG::4326 World Geodetic System 1984
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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 1350
            1 column 2430
            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 Prince William Sound, Alaska: Procedures, Data Sources, and Analysis crossReference
            1 NTHMP DEM Project largerWorkCitation
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            LE_Source or LI_Source

            Count Component Title Date Description
            1 Electronic Navigational Charts 2009-01-01 Source Contribution: downloaded from web site. ; Source Type: online
            1 NGDC Multibeam Surveys 2009-01-01 Source Contribution: multibeam surveys downloaded from web site. ; Source Type: online
            1 NGDC Trackline Surveys 2009-01-01 Source Contribution: Trackline surveys downloaded from web site. ; Source Type: online
            1 NOS Hydrographic Surveys 2009-01-01 Source Contribution: hydrographic surveys downloaded from web site. ; Source Type: online
            1 Shuttle Radar Topography Mission (SRTM) 2009-01-01 Source Contribution: gridded topographic data downloaded from web site. ; Source Type: on web
            1 USACE Hydrographic Surveys 2009-01-01 Source Contribution: Hydrographic surveys downloaded from web site. ; Source Type: online
            1 USGS NED topography 2009-01-01 Source Contribution: gridded topographic data ; Source Type: online
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            LE_ProcessStep or LI_ProcessStep

            Count Component DateTime Description
            1 2009-01-15T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of WGS84 geographic and Mean Higher High Water, respectively, using FME. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection.
            Barry Eakins at Xpath: /gmi:MI_Metadata/gmd:dataQualityInfo[2]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[1]/gmi:LE_ProcessStep[1]/gmd:processor[1]
            1 2009-01-29T00:00:00 Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
            1 2009-02-12T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 8/15 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 imported into ArcGIS and clipped to the coastline to remove values over land.
            1 2009-02-26T00:00:00 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. The grid was imported in ArcGIS to create the final DEM.
            1 2009-03-12T00:00:00 The DEM was quantitatively evaluated by comparing with source datasets. 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.
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            MI_Operation

            Count Component Code Type Status Description
            1 NTHMP DEM Gridding 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
            3 Light Detection and Ranging
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