Hydrologic Modeling and GRASS

[Dan Riker]

On the informal survey:
I am using GRASS to determine the ln(a/tanB) index for TOPMODEL, in which 
raster format is more suitable.  I think that a tutorial explaining all that
GRASS can do to manipulate catchments would be helpful.  For what I am doing, I
feel that GRASS can accomplish most of what I need, although a simple 
statistics module would be handy.
Dan Riker
Duke University