[GRASS-user] r.sim.water - error

Markus Neteler neteler at itc.it
Mon May 14 11:42:00 EDT 2007

On Mon, May 14, 2007 at 10:21:12AM -0500, M S wrote:
>    When I run r.sim.water, I get the following output
>    "GRASS_INFO_WARNING(18240,1): Infiltration exceeds the rainfall rate
>    everywhere!  No overland flow."
>    If I understand all the inputs correctly, one inputs the rainfall excess
>    (runoff) and the rainfall infiltration, and the intensity (rate) is
>    calculated by the module by the equation (Rainfall Excess = Rainfall
>    Intensity - Infiltration rate).
>    How can my infiltration exceed the rainfall rate if rainfall rate =
>    Infiltration + runoff?

General hint:
Please note that r.sim.water has been recently modified in GRASS 6.3-CVS
to support more intuitive units. In case that you use 6.3-CVS, please
check if this (still) matches your input parameters. The manual has
been updated.

The demo script in the source code directory has been updated
accordingly. Get also from here:


More information about the grass-user mailing list