Hi, I don't have any experience with that parameter, but I think if you don't need permeable structures, you don't need that parameter. I would try to represent the structures in the elevation, that should work. But keep in mind that it's a shallow water flow model, so it's not ideal for filling large and deep depressions. In that case you can also consider Itzi model.
Anna On Thu, Jan 23, 2020 at 5:16 AM Johannes Radinger < [email protected]> wrote: > Dear GRASS users, > > maybe someone of you has already worked with r.sim.water while considering > dams as impermeable structures that retain water, i.e. create > impoundments/reservoirs. > > I am wondering how to best specify dams within r.sim.water: There is the > parameter flow_control which is a raster map that indicates the > permeability of the landscape. The manual mentions here a permeability > ratio (0-1) and I guess this should be 0 for all cells that represent a dam > and 1 for all other cells of the computational region?! > But what about the elevation data then; Do I need to provide an > elevation raster that includes the dam height or should this be the > elevation as without dams? > I'd like to know whether I need to provide a flow_control map or an > elevation map that includes dams or both? I couldn't find any example of > r.sim.water that uses the flow_control parameter so far... any > ideas/experiences from your side? > > cheers, > Johannes > > _______________________________________________ > grass-user mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/grass-user
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