Hi,
I have a difficult problem. I have a very large river network file made
with a 2D shapefile. (I have the SRTMs for the same region). I would
like to model a river network but I need to keep in mind the river flow
direction. Unfortunately, I think this file was manually digitized and
therefore, line directions have no relationship with river flow direction.
Can anyone suggest a way to use my SRTMs to change the line directions
or to add a flow direction variable without resorting to manually
editing the layer?
Thanks,
Nicolas
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