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ASTER dataset information page

Short Description

ASTER machu picchu.jpg
ASTER image of Machu Picchu

Statement: Global topography from NASA's and METI's (Japan) Terra satellite

Abstract: Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). The ASTER GDEM was created by stereo-correlating the 1.3 million scene ASTER VNIR archive, covering the Earth's land surface between 83N and 83S latitudes. The GDEM is produced with 30 meter postings, and is formatted in 1 x 1 degree tiles as GeoTIFF files. Each GDEM file is accompanied by a Quality Assessment file, either giving the number of ASTER scenes used to calculate a pixel's value, or indicating the source of external DEM data used to fill the ASTER voids.

Data format

Data type: Topography
Data origin: Measured
Data format: GeoTIFF
Other format:
Data resolution: 30 m data postings

Data Coverage

Spatial data coverage: Global (83 degrees North to 83 degrees South)
Temporal data coverage: Time snap shot
Time period covered: Continuously updated from Terra satellite


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