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Coastal Digital Elevation Models (DEMs)
Digital elevation models (DEMs) of U.S. and other coasts that typically integrate ocean bathymetry and land topography. The DEMs support NOAA's mission to understand and predict changes in Earth's environment, and conserve and manage coastal and marine resources to meet our Nation's economic, social, and environmental needs. NOAA's National Centers for Environmental Information (NCEI) has built many of these models, and also distributes DEMs on behalf of other NOAA offices, as well national and international partners. Bathymetric, topographic, and shoreline data used in DEM development come from a variety of sources, including NOAA's National Ocean Service (NOS) and NCEI, the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), and the Federal Emergency Management Agency (FEMA), as well as other federal, state, and local government agencies, academic institutions, and private companies. The DEMs are referenced to a variety of vertical tidal datums, typically mean high water (MHW) or North American Vertical Datum of 1988 (NAVD 88), and usually a horizontal datum of North American Datum of 1983 (NAD 83) or World Geodetic System 1984 (WGS84). DEM cell sizes range from high-resolution models (1/9 to 1/3 arc-second; ~3 to 10 meters) that support coastal inundation studies, to regional models (roughly 3 to 24 arc-seconds) that extend farther offshore, to global models (1 arc-minute; ~2 km).
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "NOAA National Centers for Environmental Information",
"@type": "vcard:Contact",
"hasEmail": "mailto:ncei.info@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | Digital elevation models (DEMs) of U.S. and other coasts that typically integrate ocean bathymetry and land topography. The DEMs support NOAA's mission to understand and predict changes in Earth's environment, and conserve and manage coastal and marine resources to meet our Nation's economic, social, and environmental needs. NOAA's National Centers for Environmental Information (NCEI) has built many of these models, and also distributes DEMs on behalf of other NOAA offices, as well national and international partners. Bathymetric, topographic, and shoreline data used in DEM development come from a variety of sources, including NOAA's National Ocean Service (NOS) and NCEI, the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), and the Federal Emergency Management Agency (FEMA), as well as other federal, state, and local government agencies, academic institutions, and private companies. The DEMs are referenced to a variety of vertical tidal datums, typically mean high water (MHW) or North American Vertical Datum of 1988 (NAVD 88), and usually a horizontal datum of North American Datum of 1983 (NAD 83) or World Geodetic System 1984 (WGS84). DEM cell sizes range from high-resolution models (1/9 to 1/3 arc-second; ~3 to 10 meters) that support coastal inundation studies, to regional models (roughly 3 to 24 arc-seconds) that extend farther offshore, to global models (1 arc-minute; ~2 km). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Metadata Landing Page",
"mediaType": "placeholder/value",
"downloadURL": "https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc:ngdc_dems/html",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Coastal Elevation Models",
"accessURL": "https://www.ngdc.noaa.gov/mgg/coastal/coastal.html",
"description": "Information and access DEMs",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "NCEI Data viewer",
"mediaType": "placeholder/value",
"description": "NCEI Map viewer search tool",
"downloadURL": "https://maps.ngdc.noaa.gov/viewers/bathymetry/?layers=dem",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "NetCDF Markup Language file",
"accessURL": "https://www.ngdc.noaa.gov/thredds/demCatalog.html",
"description": "NetCDF Markup Language file",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Global Change Master Directory (GCMD) Keywords",
"mediaType": "placeholder/value",
"description": "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.",
"downloadURL": "https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "NCEI Contact Information",
"mediaType": "placeholder/value",
"description": "Information for contacts at NCEI.",
"downloadURL": "https://www.ncei.noaa.gov/contact",
"describedByType": "application/octet-steam"
}
]
|
| identifier | gov.noaa.ngdc:ngdc_dems |
| issued | 2006-01-01T00:00:00.000+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",
"Earth Science > Land Surface > Topography > Terrain Elevation",
"Earth Science > Land Surface > Topography > Topographical Relief",
"Earth Science > Oceans > Coastal Processes > Coastal Elevation",
"DEM > Digital Elevation Model",
"ICSU-WDS > International Council for Science - World Data System",
"Coastal Relief",
"Gridded elevations",
"Continent > North America > United States of America",
"Ocean > Atlantic Ocean > North Atlantic Ocean",
"Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea",
"Ocean > Atlantic Ocean > North Atlantic Ocean > Gulf of Mexico",
"Ocean > Pacific Ocean > North Pacific Ocean",
"Ocean > Pacific Ocean > North Pacific Ocean > Gulf of Alaska",
"Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands",
"Vertical Location > Land Surface",
"Vertical Location > Sea Floor",
"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"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2006-01-01T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| rights | otherRestrictions |
| spatial | 180.0,-90.0,-180.0,90.0 |
| temporal | 2006-01-01T00:00:00+00:00/2006-01-01T00:00:00+00:00 |
| title | Coastal Digital Elevation Models (DEMs) |
