Calibration of physically based models: back to basics?

摘要: The modelling of extreme hydrological events often suffers from a lack available data. Physically based models are the best option in such situations, as they can principle provide answers about behaviour ungauged catchments provided that geometry and forcings known with sufficient accuracy. need for calibration is therefore limited. In some (seen adjusting model parameters so fit calculation closely to measurements possible) impossible. This paper presents situation. MIKE SHE physically used flash flood over medium-sized catchment Mediterranean Alps (2820 km 2 ). An examination number alternatives shows main factor uncertainty response structure (what dominant processes). second most important accuracy which represented model. results exhibit very little sensitivity parameters, these found be useless.