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Mariana Trench 6 arc-second Bathymetric Digital Elevation Model

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 05, 2026 at 11:28 PM | Dataset Last Updated: February 14, 2013 at 12:00 AM
NOAA's National Geophysical Data Center (NGDC) created a bathymetric digital elevation model (DEM) for the Mariana Trench and adjacent seafloor in the Western Pacific Ocean. Bathymetric data used in DEM compilation were obtained from various sources, including internation, federal and academic partners. The DEM is referenced to the horizontal datum of World Geodetic System 1984 (WGS 84) and the vertical datum of sea level. Grid spacings for the Mariana Trench DEM is 6 arc-seconds (~180 meters). Please note that while positive elevations (elevations greater than 0 meters) are present in the DEM over 'dry' land (i.e. islands such as Guam and the Northern Mariana Islands), they should be ignored as the focus of DEM development was solely in the bathymetric realm.

Resources

9 resources available

  • OPeNDAP Dataset Access Form

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  • Download NetCDF File

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  • Web Coverage Service GetCapabilities

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  • Web Map Service GetCapabilities

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  • Download a subset of the NetCDF

    TEXT/HTML
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  • NetCDF Markup Language file

    NETCDF
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  • Bathymetric Digital Elevation Model of the Mariana Trench

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  • GCMD Keyword Forum Page

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  • NOAA Bathymetry and Global Relief Models

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Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth Models/Analyses > DEM > Digital Elevation Model ICSU-WDS > International Council for Science - World Data System 100 meters - < 250 meters 1 meter - < 10 meters Bathymetric Digital Elevation Model

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:dem.info@noaa.gov"
}
describedByType application/octet-steam
description NOAA's National Geophysical Data Center (NGDC) created a bathymetric digital elevation model (DEM) for the Mariana Trench and adjacent seafloor in the Western Pacific Ocean. Bathymetric data used in DEM compilation were obtained from various sources, including internation, federal and academic partners. The DEM is referenced to the horizontal datum of World Geodetic System 1984 (WGS 84) and the vertical datum of sea level. Grid spacings for the Mariana Trench DEM is 6 arc-seconds (~180 meters). Please note that while positive elevations (elevations greater than 0 meters) are present in the DEM over 'dry' land (i.e. islands such as Guam and the Northern Mariana Islands), they should be ignored as the focus of DEM development was solely in the bathymetric realm.
distribution 
[
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    "@type": "dcat:Distribution",
    "title": "OPeNDAP Dataset Access Form",
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    "mediaType": "text/html",
    "description": "OPeNDAP Dataset Access Form",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Download NetCDF File",
    "format": "NETCDF",
    "mediaType": "application/x-netcdf",
    "description": "Download NetCDF File",
    "downloadURL": "https://www.ngdc.noaa.gov/thredds/fileServer/regional/mariana_trench_6_msl_2012.nc",
    "describedByType": "application/octet-stream"
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    "@type": "dcat:Distribution",
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    "description": "Web Coverage Service GetCapabilities",
    "downloadURL": "https://www.ngdc.noaa.gov/thredds/wcs/regional/mariana_trench_6_msl_2012.nc?service=WCS&version=1.0.0&request=GetCapabilities",
    "describedByType": "application/octet-stream"
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    "title": "Web Map Service GetCapabilities",
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    "@type": "dcat:Distribution",
    "title": "Download a subset of the NetCDF",
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    "mediaType": "text/html",
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    "format": "NETCDF",
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    "description": "NetCDF Markup Language file",
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    "@type": "dcat:Distribution",
    "title": "Bathymetric Digital Elevation Model of the Mariana Trench",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Report describing the development of the Mariana Trench DEM",
    "downloadURL": "https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/mariana_trench_6_msl_2012.pdf",
    "describedByType": "application/octet-stream"
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    "description": "Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/DEM/iso/xml/4870.xml
issued 2013-02-14T00:00:00.000+00:00
keyword 
[
  "Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography",
  "Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry",
  "Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth",
  "Models/Analyses > DEM > Digital Elevation Model",
  "ICSU-WDS > International Council for Science - World Data System",
  "100 meters - < 250 meters",
  "1 meter - < 10 meters",
  "Bathymetric Digital Elevation Model",
  "Gridded elevations",
  "Ocean > Pacific Ocean > Western Pacific Ocean",
  "Ocean > Pacific Ocean > Western Pacific Ocean > Micronesia > Guam",
  "Ocean > Pacific Ocean > Western Pacific Ocean > Micronesia > Northern Mariana Islands",
  "Vertical Location > Sea Floor",
  "Mariana Trench",
  "Pacific Ocean",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce"
]
landingPage https://www.ngdc.noaa.gov/mgg/bathymetry/relief.html
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2013-02-14T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
[
  "https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/mariana_trench_6_msl_2012.pdf"
]
rights otherRestrictions
spatial 150.0,10.0,139.0,22.0
temporal 1985-01-01T00:00:00+00:00/2011-12-31T00:00:00+00:00
title Mariana Trench 6 arc-second Bathymetric Digital Elevation Model

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