[GRASS-user] upslope contributing areas
mirabell at unipg.it
Thu Oct 13 03:04:26 EDT 2011
and thanks for your fast replies,
yes, the final result which I'd like to get is a river profile along
which the values of the upslope contributing areas can be plotted on a
separate y axis.
In order to get this I suppose I should be able to "cat
river_long_profile_ascii | r.profile a_raster_map_containing_the
upslope_areas" which can provide values in square meters or square km or
Do you know if such a raster map can be obtained from a dem?
Rainer M Krug wrote:
> It depends on what the OP was looking for - it sounds to me that he is
> looking for a kind of "dynamic" approach, where one can determine the
> upslope drainage area for an arbitrary location. Unfortunately, I don't
> have a solution, but would be quite interested in the answer.
> On Thu, Oct 13, 2011 at 8:36 AM, Johannes Radinger <jradinger at gmx.at
> <mailto:jradinger at gmx.at>> wrote:
> Hello Francesco,
> you could use something like the AddOn r.stream.basin
> to delineate the basins. Every basin gets a unique number.
> Afterwards you can just query how
> many cells do have a certain number.
> best regards!
> Am 13.10.2011 <tel:13.10.2011> um 08:20 schrieb Francesco Mirabella:
> > Hi list,
> > does anyone know if there is a way to compute the upslope
> drainage contributing areas along a stream?
> > thanks for your help!
> > Francesco
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> Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
> Biology, UCT), Dipl. Phys. (Germany)
> Centre of Excellence for Invasion Biology
> Stellenbosch University
> South Africa
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