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<p>Hi,</p>
<p>This is where a little fill-in brush tool "À la Photoshop" would
be nice. On a more serious note, you could isolate the area and
use a flood model to fill it in. Then use raster math to stick it
all back together. Posting a picture of you problem could help.
<br>
</p>
<p>Nicolas<br>
</p>
<br>
<div class="moz-cite-prefix">On 2018-11-08 8:49 AM, Ulrich
Kriechbaum wrote:<br>
</div>
<blockquote type="cite"
cite="mid:trinity-4b7e5630-0968-48bd-a04d-b7c241d44423-1541684952067@3c-app-gmx-bs54">
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<div>Dear all!</div>
<div> </div>
<div>I investigate a Glacial-Lake Outburst Flood and try to
back-calculate the event using the simulation tool r.avaflow.
During the event there was a big trench eroded. I have a
post-event DEM with a clearly visible eroded trench. What i
want to do now is to "flatten" out the trench so that i get a
pre-event DEM to start my simulation. What i tried to do is to
create the contour lines of the post-event DEM, change them so
that they would not show the trench and then create a
pre-event DEM out of this contour lines. I already asked the
question, if anyone knows how to do that, i already got some
nice answers but unfortunately none of the inputs really work
for me....</div>
<div> </div>
<div>So now to my actual question: Does anyone know another
method how to "flatten" out the trench in the DEM? I would be
really glad if someone would have an answer, as i have ben
struggling a while now with these problem..</div>
<div> </div>
<div>Best regards,</div>
<div> </div>
<div>Ulli</div>
</div>
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