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Alaska Digital Surface Models (DSMs) - USGS National Map 3DEP Downloadable Data Collection

Dates

Publication Date
Start Date
2010

Citation

U.S. Geological Survey, 2017, Alaska Digital Surface Models (DSMs) - USGS National Map 3DEP Downloadable Data Collection: U.S. Geological Survey.

Summary

These data are Digital Surface Models (DSM) derived from interferometric synthetic aperture radar (ifsar) data. A DSM is a 3 dimensional representation of surface elevations in an area, including elevations of man-made structures and vegetation. The USGS performs minimal quality assurance and no reprocessing of the DSM data. USGS distributes the DSM data as received from the contractors, partners or contributing entities.

Child Items (398)

Contacts

Originator :
U.S. Geological Survey
Metadata Contact :
U.S. Geological Survey
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey

Attached Files

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Purpose

DSMs are used as a primary or ancillary source for digital mapping or scientific analysis.

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