[GRASS-user] Re: r.water.outlet

Rich Shepard rshepard at appl-ecosys.com
Thu Dec 2 14:06:24 EST 2010

On Thu, 2 Dec 2010, Daniel Victoria wrote:

> To delineate basins the water outlet must by on top of a lino of high
> acumulation (river) as is explained in the Notes section in r.water.outlet
> manual [1]. A trick I saw being used was to user r.distance (or
> v.distance) prior to r.water.outlet. I had a map with the outlet of 100
> basin but they were not in the right place. So I used r.distance to find
> the nearest river cell close to each outlet and then use r.water.outlet.
> For those comming from ESRI backgound, this is the equivalent of the "snap
> pour point command".


   I have an upcoming project where using r.distance to find the appropriate
cell for r.water.outlet may be quite useful.



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