Watershed

Hello,

I need a grass program that can give me, for any location on an
elevation model, which pixels are contribution to the water flow.
r.watershed is not exactly what I want, because you cannot choose
the point where your watershed ends (I have several mesure and
simulation along a river, and look for contributing area at each
location)

Does anybody have such tool or any other idea ?

--
Michel Wurtz ENGEES - Laboratoire Territoires & Environnement
                1, quai Koch - BP 1039, F-67070 STRASBOURG cedex
                Tel: +33 03.88.24.82.45 Fax: +33 03.88.37.04.97

Hi, Michel
You'll want to use r.water.outlet in conjunction with a drainage map
generated by r.watershed.
--
Malcolm D. Williamson - GIS Specialist E-mail: malcolm@cast.uark.edu
Center for Advanced Spatial Technologies Phone: (501) 575-6159
Ozark Rm. 12 Fax: (501) 575-5218
University of Arkansas
Fayetteville, AR 72701 Web: http://www.cast.uark.edu

On Fri, 30 Apr 1999, Michel Wurtz - LTE wrote:

Hello,

I need a grass program that can give me, for any location on an
elevation model, which pixels are contribution to the water flow.
r.watershed is not exactly what I want, because you cannot choose
the point where your watershed ends (I have several mesure and
simulation along a river, and look for contributing area at each
location)

Does anybody have such tool or any other idea ?

--
Michel Wurtz ENGEES - Laboratoire Territoires & Environnement
                1, quai Koch - BP 1039, F-67070 STRASBOURG cedex
                Tel: +33 03.88.24.82.45 Fax: +33 03.88.37.04.97