Hi Daniel,<br><br>that's right; you end up with a lot of sub-basins, which you can aggregate according to your need. They are numbered on a logical sequence, so it's really easy to aggregate them with r.mapcalc; just check where a key outlet is and go upstream from there.<br><br>Cheers,<br>Jaime<br><br><b><i>Daniel Victoria <daniel.victoria@gmail.com></i></b> escribió:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> Hi all,<br><br>I trying to delineate watersheds for several points in a very big DEM<br><br> | Data Type: CELL |<br> | Rows: 4803 |<br> | Columns: 5172 |<br> | Total Cells: 24841116<br><br>I've successfully ran r.terraflow on the DEM but now I'm stuck. How do<br>I get the watershed area for my points of interest? I've tried using<br>the direction map produced with r.water.outlet but
it did not work (I<br>used MFD flow calculation).<br><br>Also, from what I understood, the sink watershed map is suposed to be<br>the watersheds delineated by the terraflow module, is that correct? It<br>turns out that I have 191736 categories. Does that mean 191736 basins?<br>Is there a way to aggregate them?<br><br>Anyway, I think I'll let r.watershed run for the night<br><br><br>Thanks and cheers<br>Daniel<br>_______________________________________________<br>grass-user mailing list<br>grass-user@lists.osgeo.org<br>http://lists.osgeo.org/mailman/listinfo/grass-user<br></blockquote><br><p> 
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