Another module that might be applicable is r.sim.water http://grass.itc.it/grass65/manuals/html65_user/r.sim.water.html
Mark > On Fri, Dec 11, 2009 at 1:44 PM, Joop Goedbloed <[email protected]> wrote: >> Hi Users on the list >> >> To trace back the overland flood mechanism in (sub)urban area I've done some >> experiments in grass. >> (Sub)urban areas has in general a sewer-system (combined or storm). >> One of the design-parameters of a sewer is the maximal capacity of rainfall, >> in most cases e sewer is design >> to carry off about 20mm/h rain. >> >> In case of very heavy storm about 60 mm/h the sewer becoms full and an >> overland flood mechanism come into being. >> >> I've a 5x5 meter grid DEM of the area. >> In grass there are several modules to simulate overland flood. >> >> * r. terraflow >> * r.watershed >> * r.topmodel >> * r.topidx >> ... >> >> What is the most useful module(s) in grass to simulate overland flood >> mechanism? >> >> >> First I used the r.terraflow module the resulting accumulation map is here: >> Terraflow accumulation map >> >> Using the r.watershed module resulting streammap is here: >> Watershed stream map >> >> In both maps the red boxes are the complaints of water flood >> A foto of the real situation is here >> Foto >> >> Thanks >> >> Joop Goedbloed >> >> >> _______________________________________________ >> grass-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/grass-user >> >> > > > > -- > Stephen Sefick > > Let's not spend our time and resources thinking about things that are > so little or so large that all they really do for us is puff us up and > make us feel like gods. We are mammals, and have not exhausted the > annoying little problems of being mammals. > > -K. Mullis > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
