Hi all, I am currently looking at the impact of elevation on the hydraulic heads in a three layer model in Modflow 6 for elevations of 1, 5 and 10 degrees. To create elevation I am manually entering values within the top and bottom elevation packages. However when running the model the cells seem to flood substantially. I have investigated the effect of recharge and hydraulic conductivity however, despite using a wide range of values for these parameters the cells in the top layer still flood substantially. I wanted to check if the problem was related to how I constructed the model and input the elevation. Are there other methods of defining elevation within Modflow6?
I have attached below images of the conceptual for flat and sloping scenario for reference. Any assistance would be greatly appreciated.