Natural Hazards and Earth System Sciences

Abstract. A spatially distributed hydrological model, dedi-cated to flood simulation, is developed on the basis of phys-ical process representation (infiltration, overland flow, chan-nel routing). Estimation of model parameters requires data concerning topography, soil properties, vegetation and land use. Four parameters are calibrated for the entire catchment using one flood event. Model sensitivity to individual param-eters is assessed using Monte-Carlo simulations. Results of this sensitivity analysis with a criterion based on the Nash ef-ficiency coefficient and the error of peak time and runoff are used to calibrate the model. This procedure is tested on the Gardon d’Anduze catchment, located in the…

• NA
  National Aeronautics and Space Administration

  Award: 80NSSC17K0017