[GRASS-windows] r.sim.water

[Markus Neteler]

On Thu, Sep 11, 2008 at 10:16 AM, Stefan Frerichs <frerichs at bkr-ac.de> wrote:
> Hello winGrass-users,
>
> when trying to calculate the overland flow by a heavy rainfall on a
> elevation-rastermap in winGrass 6.3 with r.sim.water, i get the
> error-message "Für diesen Befehl ist nicht genügend Speicher vorhanden"
> (it's a german version) = "For this instruction sufficient memory is
> missing" (as babelfish translates). Following are the parameters i use:
>
> r.sim.water -t elevin=dgm at mapset dxin=dgm_dx at mapset dyin=dgm_dy at mapset
> rain=surf_fractal_d50 at mapset rain_val=50 infil_val=0.0 manin_val=0.1
> depth=dgm_depth disch=dgm_disch niter=10 outiter=5 diffc=0.8 hmax=0.3
> halpha=4.0 hbeta=0.5
>
> dgm_dx and dgm_dy are calculated by r.slope.aspect, surf_fractal_d50 by
> r.surf.fractal with some raster-calculation to get only positive
> rainfall-rates in a realistic range. It's my first attempt to run
> r.sim.water to see, how it is working and how do the results look like.
>
> I'm working with WinGrass 6.3 on a WinXP Pro, Pentium 4 with 2.8 Ghz,
> 2.5 GB physical Ram and around 2 GB virtuell Ram.
>
> Searching in the list doesn't help me so far. Please, can someone give
> me a hint, how to solve the problem to run r.sim.water successfully?
> And, please, be patient with me, i'm more user then programmer ...

Please post the output of
g.region -p

Possibly you are at nanometer resolution?

Markus