[GRASS-user] Problem with r.watershed in Spearfish

[Margherita Di Leo]

Hi list!

I often used r.watershed without problems, but today i had a very 
strange one. Please can anyone verify that?
I used Spearfish mapset, map: elevation.10m:

g.region res=100
r.watershed elevation=elevation.10m at PERMANENT threshold=100 
accumulation=acc_10 drainage=dir_10 stream=str_10 convergence=5 memory=300

The stream map has many streams with 0 value.
The problem is only with res=100.
Does r.watershed fail?

Thank you

-- 
Eng. Margherita Di Leo
Ph.D. Candidate
Methods and Technologies for Environmental Monitoring
Department of Environmental Engineering and Physics (DIFA)

University of Basilicata 
Campus Macchia Romana
85100 - Potenza 
Italy

Office: +39-0971205363
Fax: +39-0971205160