DEMs
DATA SOURCE |
WEB PAGE ADDRESS |
NAME |
RESOLUTION |
FORMAT |
COST |
DESCRIPTION |
NASA |
SRTM3 |
90 metre |
HGT |
Free |
The Shuttle Radar Topography Mission (SRTM) obtained elevation data on a near-global scale to generate the most complete high-resolution digital topographic database of Earth. SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during an 11-day mission in February of 2000. |
|
National Geospatial-Intelligence Agency (NGA) |
http://geoengine.nga.mil/geospatial/SW_TOOLS/NIMAMUSE/webinter/rast_roam.html |
DTED Level 0 |
900 metre |
DT0 |
Free |
Provides a gross representation of most of the earth's surface for general modelling and assessment activities. |
National Oceanic and Atmospheric Administration (NOAA) |
GLOBE |
1,000 metres |
Binary raster |
Free |
GLOBE is an internationally designed, developed, and independently peer-reviewed global DEM. |
|
ETOPO2v2 |
3,600 metres |
NetCDF and raw binary |
Free |
ETOPO2v2 was generated from a digital data base of land and sea- floor elevations on a 2-minute latitude/longitude grid |
||
ASTER Global Digital Elevation Model |
ASTER GDEM |
30 metre |
Tiff |
Free |
ASTER GDEM is an easy-to-use, highly accurate DEM covering all the land on earth, and available to all users regardless of size or location of their target areas. |
