[GRASS-user] stream extraction from ASTER dem

[Markus Metz]

Milton Cezar Ribeiro wrote:
> Dear all,
>  
> I have a DEM with dimensions 10,000 x 6,000. Now I need to
> extract all the stream or drainage, as well as generated some
> other stream/flow related features like flow direction,
> stream lenght, etc.
>  
> I work on a computer with 6Gb under Vista, and the grass
> version is the OSGeo4W one. But when I try to run the command
> below I get one error relate to r.watershed.seg.exe:
>  
> r.watershed elevation=aster_dem stream=aster_dem_stream threshold=150 
> -m memory=2048
>  
> Any idea of how to solve that?
Maybe it is the Vista UAC problem, there were recently other posts 
related to this.

Just a guess,

Markus M