[GRASS-user] unable to reproduce r.water.outlet example of GRASS book

Moritz Lennert mlennert at club.worldonline.be
Wed Sep 7 12:31:10 EDT 2011

On 07/09/11 09:33, Markus Neteler wrote:
> On Wed, Sep 7, 2011 at 8:22 AM, Markus Metz
> <markus.metz.giswork at googlemail.com>  wrote:
>> Moritz Lennert wrote:
>>> Hello,
>>> I'm trying to reproduce an exercise of the GRASS book, third edition, pp.
>>> 145-146, which demonstrates the usage of r.water.outlet. ...
>> The version of r.watershed used for the example in the book had some
>> bugs, in particular a bias towards diagonal drainage direction which
>> is mosz notable with high-res LiDAR DEMs like elev_lid792_1m. One
>> consequence is that accumulation patterns shifted a bit and
>> east=638872.6 north=220042.6 are most probably no longer falling onto
>> a main channel leading to minute basins.
> ...
> I have added NULL support in r.water.outlet and added a working example to
> the manual page [1]. Works nicely.

Yep. Thanks !


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