Utku_Unal

Hi Duncan, You're right, I selected "Use grid map" option. The problem is that; First I upload the elevation map, without any problems. Now, I want to load a roughness grid file instead of a constant roughness value. When I upload the roughness grid file, the program automatically asks me three options a) Discard the previous map, and use the last one (roughness grid is now treated as elevation map) b) Do not load this map, use the previous map values c) Cancel The sentences are not exact, but more or less like this. The result is that I am forced to input constant roughness value. Is it not possible to load both of them? Hope I could explain the problem Regards, Utku

Hi, I want to load orography and roughness maps in surfer grid format seperately for a project on WAsP Eng 3.0. However, after successfully loading orography map I couldn't load roughness map. The program automatically asks to discard the previous map (orography) and forces to use the latest loaded map. How can I load both roughness and orography maps seperately without losing information? Kind Regards, Utku