DELRIEU , G.

The FloodScale project is a contribution of the French hydrological community to the HyMeX program. Its general objective is to improve the understanding and simulation of the hydrological processes leading to flash floods. To reach these goals, a combined multi-scale observation and modelling effort is proposed, relying on nested-catchments...

The objectives of the FloodScale project were to progress in the knowledge, understanding and simulation of hydrological processes leading to flash floods in the Mediterranean area. These flash floods and the rainfall events that trigger them lead, each year, to fatalities and a large amount of damage in this region, but processes leading to...

This paper presents a coupled observation and modelling strategy aiming at improving the understanding of processes triggering flash floods. This strategy is illustrated for the Mediterranean area using two French catchments (Gard and Ardèche) larger than 2000 km2. The approach is based on the monitoring of nested spatial scales: (1) the...