US GeoData Digital Elevation Models

Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey

doi:10.3133/fs04000

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US GeoData Digital Elevation Models

Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey

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Abstract

Digital elevation model (DEM) data are arrays of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection or to a geographic coordinate system. The grid cells are spaced at regular intervals along south to north profiles that are ordered from west to east. The U.S. Geological Survey (USGS) produces five primary types of elevation data: 7.5-minute DEM, 30-minute DEM, 1-degree DEM, 7.5-minute Alaska DEM, and 15-minute Alaska DEM.

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Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey. 2000. US GeoData Digital Elevation Models. https://doi.org/10.3133/fs04000

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