## DESCRIPTION

r.in.srtm imports SRTM hgt files into GRASS. SRTM Version 1 and improved Version 2 data sets can be downloaded from NASA at this site:
http://dds.cr.usgs.gov/srtm/

Gap-filled SRTM Version 3 data can be downloaded from USGS at this site:
http://e4ftl01.cr.usgs.gov/SRTM/SRTMGL3.003/2000.02.11/

## NOTES

SRTM tiles are of 1 degree by 1 degree size. The SRTM filename contains the coordinates which refer to the center of the lower left pixel (e.g., N51E010: lower left cell center at 10E, 51N). To identify a tile name, a grid can be easily visualized in the GRASS monitor:

    d.grid size=1

To import TOPEX/SRTM30 PLUS data, use r.in.bin.

## SEE ALSO

r.in.bin

The Shuttle Radar Topography Mission homepage at NASA's JPL.
The SRTM Web Forum

## REFERENCES

M. Neteler, 2005. SRTM and VMAP0 data in OGR and GRASS. GRASS Newsletter, Vol.3, pp. 2-6, June 2005. ISSN 1614-8746.

## AUTHORS

Markus Neteler
Improved by W. Kyngesburye and H. Bowman
Update for SRTM V3 by Markus Metz

Last changed: $Date: 2014-01-25 14:50:45 +0100 (Sat, 25 Jan 2014) $