[GRASS-user] hydrological modelling in GRASS - Create Watershed by one point

[Markus Neteler]

On Sat, Mar 12, 2011 at 12:28 AM, Marcello Benigno
<benigno.marcello at gmail.com> wrote:
> Hi All,
> I´m beginner in Grass and need work with hydrological Analysis. Is it
> possible define a watershed from one point (x,y) like ArcHidro Extension? I
> didn´t find this tool in Grass.

See

http://grass.osgeo.org/wiki/Hydrological_Sciences#Watershed_modules
-> r.water.outlet: Generates a watershed basin from a drainage direction map
    (from r.watershed) and a set of coordinates representing the outlet point
   of watershed.

I hope this is what you look for.

Markus