[GRASSLIST:5114] Re: watershed
neteler at itc.it
Fri Nov 29 04:08:24 EST 2002
On Thu, Nov 28, 2002 at 02:31:52PM +0000, Francois Delclaux wrote:
> Hi, grass users
> I'm looking for a tool which can locate topographical depressions with
> according the following conditions :
> - input map : raster DEM
> - output maps : raster depression map (one point at the location
> of the lower point), raster watersheds (endoreic or not),
> raster outlet map (one point at the location of the each basin outlet).
> I know that r.watershed can do a part of this work, but not the whole.
> If another computer tool is able to achieve this task, I am interested
You may want to look at r.fill.dir. After filling the DEM you could
substract it from the original with
r.mapcalc "depressions=filled_dem - orig_dem"
Hope this helps,
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