Vortragsbild

Geoelectrical Monitoring of Landslides: Results from the TEMPEL monitoring network

R. Supper
, Mag.
, Geologische Bundesanstalt, Wien
D. Ottowitz
, Mag.
, Geologische Bundesanstalt, Wien
B. Jochum
, Mag.
, Geologische Bundesanstalt, Wien
S. Kauer
, Mag.
, Geologische Bundesanstalt, Wien
S. Pfeiler
, Geologische Bundesanstalt, Wien
M. Lovisolo
, Geologische Bundesanstalt, Wien
A. Römer
, Mag.
, Geologische Bundesanstalt, Wien
15. März 2013 | 10:20 Uhr

Results from two geoelectric monitoring sites which are part of the TEMPEL monitoring network are presented. The continuous geoelectric data acquisition, performed with the GEOMON4D instrumentation, is supplemented by high resolution displacement monitoring (DMS system). Within the observation period both active landslides (Ampflwang/Austria, Bagnaschino/Italy) showed several displacement events, which were triggered by intense precipitation. All these events were accompanied by a significant resistivity decrease, which appeared some time before the acceleration of the landslide body. Moreover geoelectric data provided a lot of additional information about the geometry and the dynamic processes of the moving subsurface material. These investigations demonstrated the capability of geoelectric monitoring in combination with additional data (e.g. displacement, precipitation) to enhance the understanding of landslide reactivation.