1

I would like to make an hydrological conditioning of a DEM using an available stream network in vector form. I know r.hydrodem but it doesn't allow to use the stream vector. I need something to burn the stream network in the DEM to assure water flowing.

Is there a solution in GRASS?

3

Please check r.carve which generates stream channels by taking a vector stream map, transforms it to raster model and subtracts depth from a DEM writing out a new, modified DEM.

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