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

[Jarosław Jasiewicz]

Margherita Di Leo pisze:
> 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
>
confirmed for resolution between 90 to 110. With less than 90 and over 
110 everythink is OK
J.