Landslide path dependency and its impact on space-time modelling of landslide susceptibility

Summary

In this PhD thesis, I characterized and quantified the spatiotemporal effects of path dependency among landslides in Collazzone study area, in Umbria region, central Italy, and that means landslides themselves increase the susceptibility for future landslides. Such effects was strong in about a decade with an exponential decay response over time. In this aspect, a modified time-variant landslide susceptibility model was proposed reflecting the spatiotemporal effects of landslide path dependency. The effect of landslide path dependency was better captured in pixel-based landslide susceptibility models, and improved the performance and accuracy of these models substantially.