<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Dear all!</div>
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<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>
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<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>
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<div>Best regards,</div>
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<div>Ulli</div></div></body></html>