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
1 DEM Global Mosaic ArcGIS Image Service Digital Elevation Model Global Mosaic ArcGIS Image Service ArcGIS Image Service
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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
NCEI Metadata ID: gov.noaa.ngdc.mgg.dem:640
1 Cordova_AK_8_15s_MHHW_DEM
    2016-06-21
1 Digital Elevation Model Footprints ArcGIS Map Service
    2011-02-15
1 Digital Elevation Model Global Mosaic ArcGIS Image Service
    2016-06-14
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 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 GCMD Location Keywords Global Change Master Directory (GCMD) Location Keywords
    2020-01-09
1 GCMD Platform Keywords Global Change Master Directory (GCMD) Platform Keywords
    2020-01-09
1 GCMD Project Keywords Global Change Master Directory (GCMD) Project Keywords
    2020-01-09
1 GCMD Science Keywords Global Change Master Directory (GCMD) Science Keywords
    2020-01-09
2 NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords Global Change Master Directory (GCMD) Service Keywords
    2020-01-09
1 GCMD Vertical Resolution Keywords Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
    2020-01-09
1 Mean Higher High Water height
    2012-08-05
1 NGDC Multibeam Surveys
    2009-01-01
1 NGDC Trackline Surveys
    2009-01-01
1 NOAA National Centers for Environmental Information
    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 https://maps.ngdc.noaa.gov/viewers/bathymetry/?layers=dem
      1 Barry W. Eakins originator
      1 Barry Eakins Barry W. Eakins NOAA National Centers for Environmental Information Research Scientist Barry.Eakins@noaa.gov pointOfContact
      8 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce publisher https://ngdc.noaa.gov/mgg/coastal/coastal.html
      1 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce publisher
      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 NASA > National Aeronautics and Space Administration originator
      8 GCMD Landing Page NASA Goddard Space Flight Center, Earth Science Data and Information System custodian https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
      2 NCEI GIS Team NCEI GIS Team NOAA National Centers for Environmental Information ncei.gis@noaa.gov pointOfContact
      3 NCEI (pointOfContact) NOAA National Centers for Environmental Information ncei.info@noaa.gov pointOfContact https://www.ncei.noaa.gov/contact
      1 NOAA National Centers for Environmental Information publisher
      1 NCEI (distributor) NOAA National Centers for Environmental Information ncei.info@noaa.gov distributor https://www.ncei.noaa.gov/contact
      1 NOAA National Geophysical Data Center author
      2 NOAA National Geophysical Data Center publisher
      4 NOAA National Geophysical Data Center originator
      1 Peng, Ge CICS-NC/NCEI author
      1 R. Jason Caldwell originator
      1 U.S. Army Corps of Engineers, Alaska District originator
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      CI_OnlineResource

      Count Component Linkage Name Description Function
      1
      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
      8 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_mosaics/DEM_global_mosaic/ImageServer DEM Global Mosaic (Elevation Values) ArcGIS Image Service REST endpoint for DEM Global Mosaic (Elevation Values) ArcGIS Image Service search
      1 https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer DEM Global Mosaic (Color Shaded Relief) ArcGIS Image Service This service provides a color shaded relief visualization of the data. The elevations/depths are displayed using this color ramp: https://gis.ngdc.noaa.gov/viewers/images/dem_color_scale.png. search
      1 https://gis.ngdc.noaa.gov/arcgis/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer/WMSServer?request=GetCapabilities&service=WMS DEM Global Mosaic (Color Shaded Relief) WMS Capabilities document for Open Geospatial Consortium Web Map Service for DEM Global Mosaic (Color Shaded Relief) search
      1 https://lta.cr.usgs.gov/SRTM1Arc Shuttle Radar Topography Mission global topography download
      1 https://maps.ngdc.noaa.gov/arcgis/rest/services/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/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
      2 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
      2 https://ngdc.noaa.gov/mgg/coastal/coastal.html Integrated Models of Coastal Relief at NCEI information
      2 https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values) NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values) 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://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042 Digital Elevation Models Mosaic (Individual DEMs) An image service providing access to bathymetric/topographic digital elevation models stewarded at NOAA's National Centers for Environmental Information. Either individual DEMs or small subsets can be accessed through this service. search
      2 https://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769 NOAA GeoPlatform Entry for DEM Global Mosaic (Color Shaded Relief) Shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. information
      3 https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information
      1 https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:640/html Metadata Landing Page 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 NCEI Metadata ID: gov.noaa.ngdc.mgg.dem:640
      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
      2 -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
      2 -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 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 Centers for Environmental Information. Not subject to copyright protection within the United States.
      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 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.
      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.
      1 2015-04-22T00:00:00 NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
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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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