Tutorial: Burn stream network into DEM

When we delineate a catchment, we need the stream network to identify the outlet. The automatically delineated channels, however, can deviate a lot from the channels we see on a map or satellite image.

When we have a river GIS layer available we can improve the catchment delineation by burning the stream network into the DEM.

After this tutorial you'll be able to:

• Download a river from OpenStreetMap using the QuickOSM plugin
• Preprocess a river vector before burning it into a DEM
• Burn a river into a DEM