US GeoData digital elevation models

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

doi:10.3133/fs10296

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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 consist of a sampled array 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. 1997. US GeoData digital elevation models. https://doi.org/10.3133/fs10296

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