skip navigation link


Coastal Relief Model

crm image map volume 9 volume 10 volume 1 volume 2 volume 3 volume 4 volume 5 volume 6 volume 7 volume 8

Click on a map area above for images and data


NCEI's 3 arc-second U.S. Coastal Relief Model (CRM) integrates offshore bathymetry with land topography into a seamless representation of the coast. The CRM spans the U.S. East and West Coasts, the northern coast of the Gulf of Mexico, Puerto Rico, and Hawaii, reaching out to and beyond the continental slope.

Bathymetric data sources include the U.S. National Ocean Service Hydrographic Database, the U.S. Geological Survey (USGS), the Monterey Bay Aquarium Research Institute, the U.S. Army Corps of Engineers, and other academic institutions. Topographic data are from the USGS and the Shuttle Radar Topography Mission. Volumes 3-5 use bathymetric contours from the International Bathymetric Chart of the Caribbean Sea and the Gulf of Mexico project.

The CRM contains grids, or digital elevation models (DEMs), of the U.S. coastal zone. Bathymetry of the Great Lakes and more detailed DEMs of U.S. coastal areas, are also available.

How to Cite These Data: Each volume is uniquely cited. See metadata for details.


Southern Alaska Coastal Relief Model
A 24 arc-second model of Southern Alaska, spanning the Bering Sea, Aleutian Islands, and Gulf of Alaska.