Thanks Hamish, The new data especially looks interesting, though I'm having a bit of trouble getting it. I'll try tomorrow from the office with a faster connection.
Michael On 10/13/07 3:35 PM, "Hamish" <[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? And barring that, any >> suggestions for an alternative site of bathymetry I can patch into my Europe >> map? > > > have a look at the etopo2 dataset, which is at 2' resolution. (2 naut mi) > http://www.gfdl.noaa.gov/products/vis/data/datasets/etopo2_topography.html > See the GRASS-Newsletter vol 1:8-11 for help importing it. > http://grass.itc.it/newsletter/grassnews1.html > > srtm30_plus (V2.0 July 29, 2006) will be using this data (in part), > http://topex.ucsd.edu/WWW_html/srtm30_plus.html > but I see Smith & Sandwell have a brand new (beta) 1' bathemetric dataset: > Smith, W. H. F., and D. T. Sandwell, Global seafloor topography from > satellite altimetry and ship depth soundings, Science, v. 277, p. 1957-1962, > 26 > Sept., 1997. > http://topex.ucsd.edu/WWW_html/mar_topo.html > ftp://topex.ucsd.edu/pub/global_topo_1min/ > > "08/21/07 > Changes for Version 9.1 > > Note this is a BETA VERSION of a 1-minute grid > that includes a significant number of new depth > soundings, especially for depths between 0 and -300 m. > A more complete description of the new data and processing > will be prepared for publication in early 2008. This > is a collaborative effort between NGA, NOAA, NAVO and SIO. > The predicted depths are based on the V16.1 gravity anomaly > model in an adjacent directory. Please send comments to > dsandwell at ucsd.edu." > > > Sorry, I couldn't see a zipped version, and no one has put it up on > geotorrent.org yet, so I can't give you a r.in.bin line to use. > hmmm, dirty .DS_Store everywhere. Someone over there is running a Mac... > > > Hamish > > ps- the 7200rpm screeching & grinding noise I heard yesterday is a timely > reminder that now might be a good time to do that backup you had been putting > off, and get that nightly rsync cron job up & running (eg the Unison file > synchronizer). > ouch > > > > > ______________________________________________________________________________ > ______ > Be a better Globetrotter. Get better travel answers from someone who knows. > Yahoo! Answers - Check it out. > http://answers.yahoo.com/dir/?link=list&sid=396545469 > > __________________________________________ Michael Barton, Professor of Anthropology Director of Graduate Studies School of Human Evolution & Social Change Center for Social Dynamics & Complexity Arizona State University phone: 480-965-6213 fax: 480-965-7671 www: http://www.public.asu.edu/~cmbarton _______________________________________________ grassuser mailing list grassuser@grass.itc.it http://grass.itc.it/mailman/listinfo/grassuser