Emprego de um modelo matemático de simulação do fluxo subterrâneo para definição de alternativas de explotação de um aquífero aluvial.

Abstract

Mathematical models have been increasingly used for decision-making. In this study a two-dimensional groundwater model was used in order to establish alternatives for exploiting the groundwater from the alluvial aquifer of Sume, located in the semiarid region of the state of Paraiba in Brazil. The model was first calibrated by comparing the simulated results with field observations of water levels. Following, thus various scenarios were simulated involving different ways of exploitation of the aquifer, taking into account, a submerged dam, the position of the water levels, and normal and dry years of precipitation. The results of the simulations, in each scenario, allowed determining the groundwater availability of the aquifer and establish alternatives for exploring the groundwater rationally, including the possibility of reactivating irrigation of the lend perimeter of Sume.