Hello,
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
whatever.
Do you know if such a raster map can be obtained from a dem?
Francesco
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.
Cheers,
Rainer
On Thu, Oct 13, 2011 at 8:36 AM, Johannes Radinger <[email protected]
<mailto:[email protected]>> wrote:
Hello Francesco,
you could use something like the AddOn r.stream.basin
(http://grass.osgeo.org/wiki/R.stream.*)
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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