Data:ASTER: Difference between revisions
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Revision as of 08:20, 22 July 2015
ASTER dataset information page
Short Description
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| 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 |
| Datum: |
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
Availability
Download data: http://reverb.echo.nasa.gov/reverb/
Data source: http://asterweb.jpl.nasa.gov/gdem.asp
