Digital Elevation Models from NOAA/NGDC

Metadata Updated: March 11, 2021

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).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date March 11, 2021
Metadata Updated Date March 11, 2021
Data Update Frequency irregular

Metadata Source

Harvested from Commerce Non Spatial Data.json Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date March 11, 2021
Metadata Updated Date March 11, 2021
Publisher DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Unique Identifier Unknown
Maintainer
Identifier gov.noaa.ngdc:ngdc_dems
Language en-US
Data Last Modified 2006-01-01
Public Access Level public
Data Update Frequency irregular
Bureau Code 006:48
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Old Spatial {"type": "Polygon", "coordinates": -180.0, -90.0, 180.0, -90.0, 180.0, 90.0, -180.0, 90.0, -180.0, -90.0}
Program Code 006:059
Source Datajson Identifier True
Source Hash 43f6f6e685bf81ffe8456c4011bba16e6f2fd1b2
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -180.0, -90.0, 180.0, -90.0, 180.0, 90.0, -180.0, 90.0, -180.0, -90.0}

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