Contribution of High-Resolution Virtual Outcrop Models for the Definition of Rockfall Activity and Associated Hazard Modelling

The increased accessibility of drone technology and structure from motion 3D scene reconstruction have transformed the approach for mapping inaccessible slopes undergoing active rockfalls generating virtual outcrop models (VOM). Poggio Baldi landslide (Central Italy) its natural laboratory offers possibility to monitor characterise slope define a workflow rockfall hazard analysis. In this study, analysis multitemporal VOM (2016–2019) informed trajectory that was carried out with physical-characteristic-based GIS model. scenarios were reconstructed then tested based on remote sensing observations rock mass characteristics both main scarp fragment inventory deposited slope. highest concentration endpoints occurred at very top debris talus, which constrained by narrow channel, while longer horizontal travel distances allowed lower portion To further improve understanding landslide, time-independent aiming potential runout associated several block volumetric classes is critical component any subsequent risk in similar mountainous settings featuring marly–arenaceous multilayer sedimentary successions reactivated scarps.