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Coastal Digital Elevation Models (DEMs)
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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).
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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 |
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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 |
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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 |
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https://maps.ngdc.noaa.gov/viewers/bathymetry/?layers=dem |
NCEI Data viewer |
NCEI Map viewer search tool |
information |
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https://noaa.maps.arcgis.com/home/item.html?id=0afa88a1701749dbbf76fcadca4f77f3 |
NOAA GeoPlatform Entry for NCEI Digital Elevation Model (DEM) Extents |
NOAA GeoPlatform listing for NCEI Digital Elevation Model (DEM) Extents |
information |
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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 |
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https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062 |
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 |
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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 |
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https://services2.arcgis.com/C8EMgrsFcRFL6LrL/arcgis/rest/services/ncei_dem_extents/FeatureServer |
NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service |
REST endpoint for NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service |
search |
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https://www.earthdata.nasa.gov/learn/find-data/idn/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 |
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https://www.ncei.noaa.gov/contact |
NCEI Contact Information |
Information for contacts at NCEI. |
information |
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https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc:ngdc_dems/html |
Metadata Landing Page |
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information |
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https://www.ncei.noaa.gov/products/coastal-elevation-models |
Coastal Elevation Models at NCEI |
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information |
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https://www.ngdc.noaa.gov/mgg/coastal/coastal.html |
Coastal Elevation Models |
Information and access DEMs |
information |
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https://www.ngdc.noaa.gov/thredds/demCatalog.html |
NetCDF Markup Language file |
NetCDF Markup Language file |
information |
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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.
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copyright statement |
Produced by the NOAA National Centers for Environmental Information. Not subject to
copyright protection within the United States.
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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: https://www.nauticalcharts.noaa.gov.
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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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