SRTM 90m Digital Elevation Data from the CHIAR Consortium for Spatial Information

The CGIAR-CSI GeoPortal is able to provide SRTM 90m Digital Elevation Data for
the entire world. The SRTM digital elevation data, produced by NASA originally,
is a major breakthrough in digital mapping of the world, and provides a major
advance in the accessibility of high quality elevation data for large portions
of the tropics and other areas of the developing world. The SRTM digital
elevation data provided on this site has been processed to fill data voids, and
to facilitate it's ease of use by a wide group of potential users. This data is
provided in an effort to promote the use of geospatial science and applications
for sustainable development and resource conservation in the developing world.
Digital elevation models (DEM) for the entire globe, covering all of the
countries of the world, are available for download on this site. The SRTM 90m
DEM's have a resolution of 90m at the equator, and are provided in mosaiced 5
deg x 5 deg tiles for easy download and use. All are produced from a seamless
dataset to allow easy mosaicing. These are available in both ArcInfo ASCII and
GeoTiff format to facilitate their ease of use in a variety of image processing
and GIS applications. Data can be downloaded using a browser or accessed
directly from the ftp site.