On 01.05.2010 07:46, Jarek Jasiewicz wrote:
Interested question, but I think the easiest answer is carving or stream
burining (r.stream.carve). Next reproduce r.watershed or
r.stream.extract you shall receive (almost) ideally confidential network
with supplied
HTH
Jarek
Hi Nikos,Jarek,
Stream burning: Thats what I thought about.
Further I suggest to weight the DEM with the contour information.
A guess how this could be done:
v.to.rast contourmap
r.fillnulls (to interpolate between contour lines raster map)?
r.mapcalc dem*contourrast
then r.watershed
Best regards,
Achim
PS: Check the global dataset "HydroSHED"! It uses stream burning and
works perfectly (for non profit projects). Its resolution?
3",15",30",5'! I successfully used it to create a global runoff-network
for the global runoff model LSDM (Dill 2008).
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