Cumulative rainfall in SeepW
I hope you're doing well. I simulated a model in SEEP/W, taking into account a boundary condition like recharge where there is an interaction between climate and soil in 1D dimension. The rainfall was 573.4 mm. After the simulation, the cumulative rainfall was 0.548 m³, which means that P = 548 mm.
It seems that there was a mistake in the calculation and the correct value of P is indeed 0.5734 m³, which is equal to the amount of rainfall.