>From an older post (from Markus, I guess)
Example: r.in.bin -sb input=e020n40.Bathmetry.srtm output=e020n40_topex bytes=2 north=40 south=-10 east=60 west=20 r=6000 c=4800 r.colors e020n40_topex rules=etopo2 Enjoy Carlos On 10/13/07, Maciej Sieczka <[EMAIL PROTECTED]> wrote: > Michael Barton wrote: > > Ultimately, I'm trying to locate bathymetry off the coast of Europe to > > create a DEM of Pleistocene Europe during times of low sea level (i.e., > > -300m). > > > > Following the FreeGIS.org link off the GRASS download data page, I found a > > site with "STRM30 plus" that combine 1km SRTM with bathymetry > > <ftp://topex.ucsd.edu/pub/srtm30_plus/data>. This seems just what I need. > > However, I can't figure out the format or how to import it into GRASS. The > > files show up like " w020n90.Bathmetry.srtm". I've tried r.in.gdal and > > r.in.strm to no avail. I thought maybe the files were compressed and tried > > to uncompress them without luck. > > > > Can anyone suggest what to do with these files? > > Michael, > > ftp://topex.ucsd.edu/pub/srtm30_plus/README.V2.0.txt: > > <snip> > DATA FORMATS > Data are provided as binary integers in exactly the same > format as SRTM30. The files must be uncompressed with gzip > and are 16-bit big endian byte order. > </snip> > > Other than they don't seem gzipped actually, the information > looks correct. These are 16 bit signed integer binary grids. > > You can use r.in.bin, or r.in.gdal if you create appropriate > header files (see r.in.srtm script for inspiration; note it > cannot work with 30" SRTM data as it is now - currently it > supports only 3" and 1" SRTM tiles). In the presence of > properly formatted *.hdr GDAL supports such binary grids > with "ESRI .hdr Labelled" driver [1]. In > ftp://topex.ucsd.edu/pub/srtm30_plus/ermapper_headers there > are ERmapper header files, which I suppose can be used to > prepare their GDAL-understandable version. > > [1] http://www.gdal.org/frmt_various.html#EHdr > > Maciek > > _______________________________________________ > grass-dev mailing list > [EMAIL PROTECTED] > http://grass.itc.it/mailman/listinfo/grass-dev > -- +-----------------------------------------------------------+ Carlos Henrique Grohmann - Guano Visiting Researcher at Kingston University London - UK Geologist M.Sc - Doctorate Student at IGc-USP - Brazil Linux User #89721 - carlos dot grohmann at gmail dot com +-----------------------------------------------------------+ _________________ "Good morning, doctors. I have taken the liberty of removing Windows 95 from my hard drive." --The winning entry in a "What were HAL's first words" contest judged by 2001: A SPACE ODYSSEY creator Arthur C. Clarke Can't stop the signal. _______________________________________________ grassuser mailing list grassuser@grass.itc.it http://grass.itc.it/mailman/listinfo/grassuser