Evoluzione geomorfologica dell’accumulo del rock-debris avalanche di Mt. Meager, a 10 anni dall’evento di Capricorn Creek, (Pemberton, BC, Canada)

The objective of this thesis is the reconstruction of the geomorphological evolution of Mount Meager rock-debris avalanche accumulation (Pemberton, BC, Canada), 10 years after the Capricorn Creek event (August 6, 2010). The work is based on the multi-temporal analysis of orthophotos and DTMs collected from 2010 to 2020. First, it has carried out a study on the quality of the images collected by drone and GNSS data processing, both acquired during the data collection campaign of 2018/19. Then DTMs and orthophotos have been created from drone photos, by means of the Structure from Motion technique. Later, the comparison and interpretation of the data have made possible the creation of a geomorphological map for the evaluation of the geomorphological changes of the area, also Relative Elevation Models. In conclusion, the geomorphometric analysis has supported the calculation of the volumes mobilized in the erosion and deposition processes that occurred in the study area