Modelado del flujo de agua subterránea en la Región Nordeste de Brasil, mediante modelos de simulación

Abstract

A methodology for the application of analytical elements for simulating groundwater flow in regional aquifers is presented. The study area was the region located in the Cariri Valley, which is in the southern part of Ceara State in NE Brazil. This area includes the municipalities of Crato, Juazeiro del Norte, and Barbalha. The choice of this region for the study was due to the fact that it posesses one of the largest reserves of groundwater in sedimentary rock in the Ceara State, and also because public water supply to these cities is almost wholly dependent on this water. A comparative study was made using the analytical and numerical methods in which variables such as degree of reliability,suitability, adequacy, and accuracy were evaluated. It was concluded that the analytical model had a high degree of confidence, was not susceptible to modelling oscillations, and was sufficiently adequate and accurate, especially when applied to regional aquifers.