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Federal
ASTER Global DEM NGDA
National Aeronautics and Space Administration —
ASTER is capable of collecting in-track stereo using nadir- and aft-looking near infrared cameras. Since 2001, these stereo pairs have been used to produce single-... -
Federal
Declassified Satellite Imagery 2 (2002)
National Aeronautics and Space Administration —
Declassified satellite images provide an important worldwide record of land-surface change. With the success of the first release of classified satellite photography... -
Federal
GTOPO30 Hydro 1K
National Aeronautics and Space Administration —
HYDRO1k is a geographic database developed to provide comprehensive and consistent global coverage of topographically derived data sets, including streams, drainage... -
Federal
Side Looking Airborne Radar (SLAR) Imagery
National Aeronautics and Space Administration —
Side-Looking Airborne Radar (SLAR) imagery is available from the U.S. Geological Survey (USGS) for selected project areas in the conterminous United States and...