Dynamics of underground water of Delta or Island territories during passage of floods

The dynamics of underground water, hydraulically connected with rivers, is investigated during the passage of floods in the rivers. For two-dimensional filtration fluxes bounded by channels with vertical banks on both sides this problem was investigated in 1–3]; for semibounded fluxes it was investigated in 4–8]. Below this problem is investigated for a symmetrical two-dimensional underground flux bounded on both sides by reservoirs with inclined banks.