MICRODEM will display Geotiff ASTER DEMs.
The ASTER GDEM was created with two NIR cameras on the ASTER satellite.
One looks down at nadir, and the other is inclined in the along track direction.
After a short delay, overlapping stereo imagery allows creation of a
- The original DEMs are no longer freely available.
- A new global ASTER DEM (GDEM) became available in 2009.
Despite the 30 m (really 1") , resolution, it is probably not as
good as SRTM-3" (Guth, 2010;
Tomislav Hengl and Hannes I. Reuter, 2011)
- Version 2 of ASTER GDEM came out in the summer of 2011, and
is still probably inferior to SRTM 3", even with the supposedly
higher resolution. SRTM 1" is also now freely
ASTER GDEM Available from:
Last revision 12/30/2017