[GRASS-user] Use of r.watershed

[Markus Neteler]

On Jan 23, 2008 6:28 PM,  <hydro at hydromodeling.com> wrote:
> Thanks for pointing out the excerpt from the manual.  So, based on
> that it seems that r.watershed will take longer to run than the
> ArcHydro tools.  How much longer? I guess I will just let it run and
> see if I can find out.  Then I will run r.terraflow and compare the
> differences between ArcHydro, r.terrafow and r.watershed.

see also here for some comparison:
 http://www.cs.duke.edu/geo*/terraflow/speedup.html

Markus