Department Systems Analysis, Integrated Assessment and Modelling

Building an agro-hydrological model of the world to study water resources, soil erosion, and crop yield

SWAT program is a comprehensive, semi-distributed, continuous-time, processed-based program used to build models to evaluate the effects of alternative management decisions on water resources quantity and quality in large river basins. The hydrological component of SWAT allows explicit calculation of different water balance components, and subsequently water resources at a subbasin and smaller units. The program is widely used to simulate the impact of landuse and climate changes on water resources and crop yield. SWAT is ideally applied at national and regional levels, although it has recently been used to build agro-hydrological models at European and African continental scales. A lighter version of SWAT, SWAT-LTE is under development for global analyses