[GRASS-user] Obtain r.stream.extract accumulation map?
César Augusto Ramírez Franco
caesarivs at gmail.com
Tue Apr 14 14:17:37 PDT 2015
Hello dear list
I'm using r.stream.extract to obtain a stream network and further
processing of the vector map (as points using v.to.points) in R to generate
longitudinal stream profiles and calculate the hypsometric curve, but I
need to include the accumulation value in my points DB.
The issue I'm having is that if I use r.watershed AFTER v.to.points to read
the raster values into the points, they don't quite match (i.e. points are
not where the max accum values are). I assume because I'm not calculating
the accumulation map the same way r.stream.extract is calculating it.
What I want is to obtain the same accumulation map used by r.stream.extract
when none is specified, how can I do this? It would be nice if
r.stream.extract would let me save the accumulation map it computes for
further use.
Thanks in advance.
PS: I'm using Grass 6.4.3 on Ubuntu 14.04.
--
*César Augusto Ramírez Franco*
Laboratorio de Sistemas Complejos Naturales
Escuela de Geociencias
Facultad de Ciencias
Universidad Nacional de Colombia - Sede Medellín
Teléfono: (57-4) 430 9369 - 300 459 6085
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