Sensitivity of the runoff behaviour of Alpine catchments to system conditions - looking at the current and future situation. : Poster presented at the General Assembly of the European Geosciences Union, Vienna, 27 April-02 May 2014

Wien

2014

Poster

Monographie

184719

Alpine settlements are often situated on alluvial fans at the outlet of small catchments. Thus they are - due to the short response time - exposed to a high risk in case of flash floods. Within the project Sensitivity of the runoff characteristics of small Alpine catchments to climate change we aim at identifying the critical combinations of event characteristics (intensity and duration of rain) and system conditions (soil moisture, state of vegetation and land use, snow cover) producing flash floods in order to improve the predictability of such events. Therefore we investigated three small catchments with different altitude and precipitation regime: The catchments of the Ruggbach (400 1000 m a.s.l., 7.2 km², Vorarlberg, Austria), the Brixenbach (800 2000 m a.s.l., 9.3 km³, Tyrol, Austria) and the Längentalbach (1900 3000 m a.s.l., 9.2 km², Tyrol, Austria).