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I am trying to delineate/model a floodplain using only a DEM and ArcHydro tools but unsure of workflow - anyone done this before?

Question asked by superfern on Feb 10, 2020

I am working without access to flood gauge or any other water level data, and wish to delineate the floodplain by either using slope/flow direction/acc etc. Has anyone done this before?


Thank you!