Hi,
How can I calculate it in GRASS?
Maciek
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You need the dem, and the following commands:
*
**r.watershed **elevation=*/yourdem /*drainage=*/yourdrainage ....
(please check for more parameters)
*d.rast and d.zoom to identify your basin outlet coordinates...* (you
have to take a point on the stream)
/*r.water.outlet* *drainage=*/yourdrainage/ *basin=*/yournewbasin/
*easting=*/value/ *northing=*/value
later you can use r.stats , r.average or r.report with yourbasin map.
too it´s very useful to use r.mask in other to get statistics from other
maps.
see you
guillermo
/
turek2 wrote:
Hi,
How can I calculate it in GRASS?Maciek
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Instituto Alexander von Humboldt
Este mensaje ha sido explorado con McAfee Webshield e500 Appliance y es seguro.
Instituto Alexander von Humboldt
I need a specific catchment area, not a catchment area. My mistake 
thanks,
Maciek
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