[GRASS-web] Question

[Markus Neteler]

Hello,

On Fri, Aug 1, 2014 at 12:12 PM, Liu Shengbo <giugo123 at gmail.com> wrote:
> Hallo,
> I want to ask,what ist the nwalk in r.sim.water? what function has this
> nwalk?

I found a reference in this paper:

"The spatial distribution of numerical error associated with path
sampling solution can be analysed using the output error raster file
[m]. This error is a function of the number of particles used in the
simulation and can be reduced by increasing the number of walkers
given by parameter nwalk."

Proceedings of the Open source GIS - GRASS users conference 2002 -
Trento, Italy, 11-13 September 2002
GRASS and modeling landscape processes using duality
between particles and fields
Jaroslav Hofierka*,**, Helena Mitasova*, Lubos Mitas***

http://www.ing.unitn.it/~grass/conferences/GRASS2002/proceedings/proceedings/pdfs/Mitasova_Helena_2.pdf

I have added this to the manual page:
http://grass.osgeo.org/grass70/manuals/r.sim.water.html

Hope this helps,
Markus