[GRASS-user] extract single watershed from r.stream.order-result

[Johannes Radinger]

Hi again,

I found now a quite simple solution with the r.stream.basins module ...

> What I did so far:
> 
> r.watershed -f --overwrite elevation=elevation.10m at PERMANENT
> accumulation=accum 
> 
> r.mapcalc accum_abs=abs(accum)
> 
> r.stream.extract --overwrite elevation=elevation.10m at PERMANENT
> threshold=200 stream_rast=stream
>

#to extract the single river-network at the given outflow point I need
#also to extract the dirs:

r.stream.extract --overwrite elevation=elevation.10m at PERMANENT threshold=200 stream_rast=stream direction=dirs

# and then run following:

r.stream.basins" dir=dirs coors=602140,4927950, basins = basins)

r.mapcalc sample_stream=basin&&stream



/Johannes
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