[GRASS-user] Why r.watershed Yields Narrow Basins

[Margherita Di Leo]

Rich,

On Sat, Jun 9, 2012 at 12:21 AM, Rich Shepard <rshepard at appl-ecosys.com>wrote:

> On Fri, 8 Jun 2012, Rich Shepard wrote:
>
>   I'd like to understand why some of the r.watershed basins look like
>> squashed worms.
>>
>
>  By trial-and-error with different threshold values I think my original
> value (125,000) was much too small. The threshold for this area should be
> ~400,000.


Try also multiple flow direction (MFD) algorithm ( -f  flag in r.watershed)

regards,
madi


-- 
Dr. Margherita Di Leo
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