GRASS GIS manual: r.in.srtm

Note: A new GRASS GIS stable version has been released: GRASS GIS 7.4, available here.
Updated manual page: here

NAME

r.in.srtm - Imports SRTM HGT files into raster map.

KEYWORDS

raster, import

SYNOPSIS

r.in.srtm

r.in.srtm --help

r.in.srtm [-1] input=name [output=name] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-1: Input is a 1-arcsec tile (default: 3-arcsec)
--overwrite: Allow output files to overwrite existing files
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

input=name [required]: Name of SRTM input tile (file without .hgt.zip extension)
output=name: Name for output raster map (default: input tile)

DESCRIPTION
NOTES
SEE ALSO
REFERENCES
AUTHORS

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/

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: