ASTER Global Digital Elevation Model (GDEM)

[Blogspot Moderator]

Greetings to you all,

Those who are looking for higher resolution DEM, I have a very good
news to convey!

Now, NASA/METI has released the 30m global (83°N and 83°S and is
composed of 22,600 1°-by-1° tiles) ASTER GDEM based on 1,264,118
single ASTER dems from 1.4 million scenes in total. 95% vertical ci:
20 meters, 95% horizontal ci: 30 meters)

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. Anyone can easily use the ASTER GDEM
to display a bird's-eye-view map or run a flight simulation, and this
should realize visually sophisticated maps. By utilizing the ASTER
GDEM as a platform, institutions specialized in disaster monitoring,
hydrology, energy, environmental monitoring etc. can perform more
advanced analysis...

ASTER GDEM tiles can be downloaded electronically from ERSDAC by
visiting the link below: This web-based search system has 4 methods
for tile selection. You can select tiles with one of the following
methods.

1. Select tiles directly
2. Select tiles by polygon
3. Select tiles by shapefile
4. Select tiles by coordinates

Visit below for full details:
http://free-gis-data.blogspot.com/2009/04/aster-global-digital-elevation-model.html

Thanks for your time!

Sincerely,
The Publisher,
http://free-gis-data.blogspot.com

Note: This site will be updated with more and more free GIS stuff
daily, so please keep visiting in future!