LPC methodology as a tool to create real time cartography of the gravitational hazard: Application in the municipality of Menton(Maritimes Alps,France)

摘要

This paper presents the LPC (Landslide Predictive Cartography) methodology for evaluatingslope failure in wide study area. This deterministic methodology is based on the limit equilibrium theory andcombined with a dynamic hydrogeological model. It assesses,for each time laps,the slope stability in relationwith real or modelled climatic events. This model was described and applied on the Menton municipality(Maritimes Alps,France). This studied area is densely populated in the thalweg zone and have very steep slope.The Menton landscape morphology comes from the erosion of the sedimentary formation. The results obtainedindicate that,for a 10 m DEM scale resolution and a 20-year return rainfall modelling,21.4% of the studied areashould be unstable and 70.7% of the landslide occurred have a FS inferior to 1.