Our environmental agency needs a function for simulating heavy rainfall that allows them to set the rainfall area separately from the simulation area.
For example: Heavy rainfall is expected in the mountains, but it should ONLY rain in the mountains. How will the water behave when it flows down into the valley?
Currently, when we set the simulation area, it also means that it rains throughout the entire simulation area, but this is often not the case.
Such a function would be very helpful to us!