Investigating hydrological model versatility to simulate extreme flood events

We adapted a semi-distributed hydrological model (GRSD) to improve its versatility simulate flood events occurring under different conditions, especially flash floods after dry summer periods in the Mediterranean region. The adaptation introduces dependency on rainfall intensity production function. evaluation over 2008–2018 Aude catchment (France) showed that new structure does not deteriorate long-term simulations obtained from original model. performed better than or equal terms of differences timing peak discharges, regardless season year when occurs. most important improvement was observed simulation magnitude peaks during autumn floods. A visualization allows detection time steps tends behave more similarly differently runoff production.