[GRASS-user] accumulation map from directions map

[Achim Kisseler]

Hello again,

I am still searching a method to generate a flow accumulation map from a
flow direction map.

I got the direction map from an arcgis user. In arcgis the module
"FLOWACCUMULATION(FLOW_DIR)" would do this, but I want to use an open
source solution.

If anyone could give me a hint, where I could find a tool like this
(inside GRASS it does not seem to be possible), I would be very grateful.

Best regards,
Achim