OPTIMAL GROUND WATER MANAGEMENT IN TWO‐AQUIFER SYSTEMS1

Abstract
; This paper presents a numerical model for the prediction of optimal ground water withdrawal from a two‐aquifer system by observing a set of constraints determined by the ecological conditions of the ground water basin. The aquifer system consists of an upper unconfined and a lower confined aquifer with a leaky stratum between them. It is assumed that water is withdrawn from the confined aquifer only, but the unconfined aquifer will also be affected due to the leakiness of the layer separating the upper and lower aquifers. Simulation and linear programming are employed for developing a computer model for the optimal management of such systems, with the objectives of determining withdrawal rates for predetermined ground water levels.

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