Thanks a lot for the kind anwsers. I will try these tutorials ! Cheers Michael
2013/11/27 Lene Fischer <[email protected]> > Hi Michael, > Try this cookbook > http://qgissextante.blogspot.dk/2013/01/hydrology-analysis-with-taudem.html > > Regards > Lene Fischer > ------------------------------ > *From:* [email protected] [ > [email protected]] on behalf of kimaidou [ > [email protected]] > *Sent:* 26 November 2013 20:43 > *To:* Alexander Bruy > *Cc:* qgis-user > *Subject:* Re: [Qgis-user] What is the best way to do a simple watershed > analysis on a raster grid? > > Hi > > I already tried the saga and grass tools via Processing framework. They > are really powerfull, but also really complicated in my opinion. Hard to > find the correct algo, the correct treshold, necessity to manually > vectorize the produced watershed raster (I have surely missed something > here...), etc. > I am surely not an hydrology expert, but I am convinced that we could > create a full processing model wich let humble users do the job. > Any pointers to documentation or examples would be apreciated if anyone > know some (I searched "grass catchment basin" or other keywords and could > not find a step by step procedure adapted to "beginners") > > Michael > > > 2013/11/25 Alexander Bruy <[email protected]> > >> Hi Rob, >> >> you can try to do this with Processing framework. There is >> at least three different providers that have watershed analysis >> tools: GRASS, SAGA and TauDEM >> >> 2013/11/24 Rob Stewart <[email protected]>: >> > Hi, >> > What's the best way to do a simple watershed analysis on a raster grid? >> I'm >> > wanting to generate rainfall/runoff sub-catchment polygons. >> > Rob >> > >> > >> > _______________________________________________ >> > Qgis-user mailing list >> > [email protected] >> > http://lists.osgeo.org/mailman/listinfo/qgis-user >> >> >> >> -- >> Alexander Bruy >> _______________________________________________ >> Qgis-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-user >> > > >
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