[GRASS-user] r.damflood example

Panagiotis Mavrogiorgos pmav99 at gmail.com
Fri Dec 4 06:50:20 PST 2015

On Wed, Dec 2, 2015 at 4:46 PM, Anna Petrášová <kratochanna at gmail.com>

> On Wed, Dec 2, 2015 at 7:20 AM, Panagiotis Mavrogiorgos <pmav99 at gmail.com>
> wrote:
>> Hi all,
>> I am trying to run r.damflood but I am running into trouble.
>> Unfortunately the documentation has no examples. I manage to make the
>> script run but I can't quite figure out what I need to use as input in
>> order to get meaningful results.
>> I've tried to describe the steps I followed in this gist:
>> https://gist.github.com/pmav99/d6162e1d82e9f23f769c
> Nice! Some steps seems too complicated, I suggest using r.null for some of
> the steps.

I agree with you that it could be simplified, but I was trying to replicate

> I think the problem is the break raster. It should have 0 everywhere
> except for the part of dam which breaks, that part should have the height
> of the dam break, for example tens of meters. r.damflood computes
> internally the new DEM as DEM with the dam minus the break raster. I hope
> it's clearer now.

I see, thank you :)
It does make sense now.

Question: Is it possible to make r.damflood take under consideration
downstream water (e.g. a lake or a river)?
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