hello everybody
i have a problem with my model and i hope you could help
i have complex stratigraphy. so first i used Modflow-USG , you can see the figure of my U-grid in the attached figure, I tried to add a recharge at the top cell but i couldnot
>>I searched and the solution was adding a new upper inactive layer, but i could not add it , i hope you help me do this and tell me the steps
>>
i also tried modflow 2000 but in the step of solid-..> modflow
it gave me an error similar to that
i cannot find a solution
please help