Coastal Digital Elevation Models (DEMs)

Metadata Updated: November 18, 2018

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).

Access & Use Information

Downloads & Resources

Dates

Metadata Date November 6, 2017
Metadata Created Date September 27, 2015
Metadata Updated Date November 18, 2018
Reference Date(s) January 1, 2006 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

thumbnail of coastal dem

Additional Metadata

Resource Type Series
Metadata Date November 6, 2017
Metadata Created Date September 27, 2015
Metadata Updated Date November 18, 2018
Reference Date(s) January 1, 2006 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Bbox East Long 180.0
Bbox North Lat 90.0
Bbox South Lat -90.0
Bbox West Long -180.0
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description thumbnail of coastal dem
Graphic Preview File https://www.ngdc.noaa.gov/mgg/image/integrated_coastal_left.jpg
Graphic Preview Type jpg
Guid gov.noaa.ngdc:ngdc_dems
Harvest Object Id b7f7cc42-9173-4515-9bc1-9634dd15b310
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence 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.
Metadata Language
Metadata Type geospatial
Progress onGoing
Spatial Data Service Type ArcGIS Map Service
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2006-01-01

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