An approach for water allocation with a couple surface and groundwater model

Abstract

The integrative analysis considering the spatial and temporal representation of the hydrological and hydrogeological process is a challenge for the water resources management process and the water allocation policy. The join of distributed hydrological, hydrogeological and optimization models is an alternative to achieve the effective water integrated management. We present a framework for the conjunctive use of the RUBEM, MODFLOW and an extended version of PYWR models that return monthly results of the surface-groundwater processes and the optimization of the runoff. An irrigation node was created with maximum flow restriction to save storage in the basin. The framework was applied in a basin of Sao Paulo state, that suffers with water scarcity, showing good adherence with the water balance patterns and the differences in demand attendance when irrigation nodes are active.