Open Session - SWISS GEOSCIENCE MEETINGs

312
Symposium 12: Data acquisition, Geo-processing, GIS, digital mapping and 3D visualisation
In our presentation we show that there are significant links between geological features and the wavelet-transform results.
They can be related to the evaluation of the stability over the observed area but also to the sliding mechanism itself. The
features that we have detected can be classified through the intervals of discrete scale defined by the transform and thus
could lead to associate a specific scale to the identification of a particular process (slide, flow, etc.) or a particular characteristic
of the landslide (thickness, geological heterogeneity, etc.). In that sense, it could greatly help in hazard and risk assessment.
REFERENCES
Mallal, S. 2000: Une exploration des signaux en ondelettes, Les éditions de l'école polytechnique, France.
Figure 1. Wavelet transform – analysis, filtering and synthesis.