[GRASSLIST:6130] advice on r.watershed

[javier garcia - CEBAS]

Hi all,

I've used r.watershed to outline a catchment. I like the result, but I have 
to work  with other people that uses ArcView.
I've check that the DEM-based catchment area created with r.watershed is not 
the same that the catchment I obtain with other programs. In fact, I've seen 
that with PCRaster and with ArcView I obtain the same area, different that 
the one I obtain with r.watershed.

Could anyone say something about the origin of these differences, and give 
some advice? I would like to have a good criterion to choose among the 
different results.

Best regards

Javier