The hydrological and geomorphological effects of an exceptional rainstorm event that occurred in the central Spanish Pyrenees during 19-21 October 2012 were studied in 5 experimental catchments under various land covers : 1) subhumid badlands; 2
rainfall pulses. The abandoned farmland catchment had 2 small peak discharges at the beginning of the event. The badland catchment reacted immediately from the beginning of the rainstorm, yielding very high discharges accompanied by high suspended sediment