National Geophysical Data Center (NGDC), NOAA Satellite and Information Service

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Digital Elevation Models from NOAA/NGDC

Digital elevation models (DEMs) of U.S. coasts that integrate ocean bathymetry and land topography to 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. These models, built and distributed by NOAA?s National Geophysical Data Center (NGDC), utilize bathymetric, topographic, and shoreline data 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 a variety of vertical tidal datums, generally mean high water (MHW) or North American Vertical Datum of 1988 (NAVD 88), and 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).

Cite this dataset when used as a source.

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    Distribution Formats
    • Varies
    Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Point of Contact DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    dem.info@noaa.gov
    General Documentation
    Originator
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp)
    Publisher
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Date(s)
    • publication: 2006-01-01
    Dataset Progress Status Under development
    Data Update Frequency: As needed
    Purpose: The DEMs can be used for modeling of coastal processes (tsunami inundation, storm surge, sea-level rise, contaminant dispersal, etc.), ecosystems management and habitat research, coastal and marine spatial planning, and hazard mitigation and community preparedness.
    Use Limitations
    • 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.
    • Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
    Time Period: 2006-01-01  to  Present
    Spatial Bounding Box Coordinates:
    N: 90.0
    S: -90.0
    E: 180.0
    W: -180.0
    Spatial Coverage Map:
    Themes
    • 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
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    • WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder
    • Coastal Relief
    • Gridded elevations
    • ngda
    • Elevation
    • DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
    • DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
    • DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
    • DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
    • DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
    • DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
    Places
    • 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
    Use Constraints No constraint information available
    Fees Fee information not available.
    Lineage Statement Lineage statement not available.
    Processing Environment Native Dataset Environment: ESRI ArcCatalog 9.2.4.1420

    Metadata Last Modified: 2014-07-28

    For questions about the information on this page, please email: dem.info@noaa.gov