Data:Southern Alaska Coastal Relief Model


Southern Alaska Coastal Relief Model dataset information page

Short Description

Color hillshade of the So AK CRM

Statement: Integrated bathymetric-topographic relief model of Southern Alaska; 24 arc-second cell size

Abstract: The Southern Alaska Coastal Relief Model is a 24 arc-second digital elevation model ranging from 170° to 230° and 48.5° to 66.5° N. It integrates bathymetry and topography to represent Earth's surface and spans over the Gulf of Alaska, Bering Sea, Aleutian Islands, and Alaska's largest communities: Anchorage, Fairbanks, and Juneau. The relief model was built from a variety of source datasets acquired from the National Geophysical Data Center, National Ocean Service, United States Geological Survey, National Aeronautics and Space Administration, and other U.S. and international agencies.

The CRM provides a framework to enable scientists to model tsunami propagation and ocean circulation. In addition, it may be useful for benthic habitat research, weather forecasting, and environmental stewardship.

Data format

Data type: Topography
Data origin: Modeled
Data format: GeoTIFF, NetCDF, Binary, ASCII
Other format:
Data resolution: 24 arc-second cell size
Datum: WGS 84 geographic (horizontal); sea level (vertical)

Data Coverage

Spatial data coverage: Southern Alaska (170° to 230° and 48.5° to 66.5° N)
Temporal data coverage: Time averaged
Time period covered:


Download data:
Data source:


  • Lim, E., B.W. Eakins, and R. Wigley, Coastal Relief Model of Southern Alaska, National Geophysical Data Center, NESDIS, NOAA, 2009.