LUCENA, S. C. B.; http://lattes.cnpq.br/0576853312556844; LUCENA, Susana Cristina Batista.
Résumé:
Urban coastal regions usually suffer from serious problems related to, among other
factors: inadequate land use, low topographic gradient and shallow aquifers. It is widely
known that these regions present high population density and the water resources problems
tend to increase in time. Several studies show that the most feasible solution for these
problems is the appropriate and integrated management of surface and groundwater. This
dissertation aims at implementing a distributed soil water balance model able to estimate
the aquifer recharge in urban coastal regions. For this purpose, a flooding-prone urban area
was investigated, integrating this study with previous ones in the same area. The
methodology applied in this research integrates the soil water balance model to a
groundwater flow model, previously calibrated for the region, comparing the aquifer water
levels calculated by the models with observed ones. The end-line purpose of this work is to
lower the aquifer water levels, using information from rainfall forecasts, within safe limits
and no risks of saline intrusion. A Geographic Information Systems was applied to the
parameterization of the distributed model. The validation of the aquifer recharge model
was implemented by comparing the simulated and observed aquifer water levels from
observed rainfall data. The results showed a good agreement between observations and
simulations, thus concluding that the recharge model is appropriate for the studied area.
