Is there a way to find a flood zone from a stream using a DEM?
I will try and describe what I am trying to achieve. I have a DEM and a course for a stream that is flowing downhill. I want to raise the water level in the stream by (for example) 2 meters. With this new water level, I want to see the areas affected by this increase in water level (flood zone). Is there a way to achieve this in Global Mapper? I am using version 22.1. Thanks very much, Mark