The 1513 Monte Crenone rock avalanche: numerical model and geomorphological analysis

De Pedrini, Alessandro and Scapozza, Cristian and Ambrosi, Christian (2022) The 1513 Monte Crenone rock avalanche: numerical model and geomorphological analysis. Geographica Helvetica, 77 (1). pp. 21-37. ISSN 2194-8798

Text gh-77-21-2022.pdf - Published Version Available under License Creative Commons Attribution. Download (18MB)

Abstract

As a contribution to the knowledge of historical rockslides, this research focuses on the historical reconstruction, field mapping, and simulation of the expansion, through numerical modelling, of the 30 September 1513 Monte Crenone rock avalanche. Earth observation in 2-D and 3-D, as well as direct in situ field mapping, allowed the detachment zone and the perimeter and volume of the accumulation to be determined. Thanks to the reconstruction of the post-event digital elevation model based on historical topographic maps and the numerical modelling with the RAMMS::DEBRISFLOW software, the dynamics and runout of the rock avalanche were calibrated and reconstructed. The reconstruction of the runout model allowed confirmation of the historical data concerning this event, particularly the damming of the valley floor and the lake formation up to an elevation of 390 m a.s.l., which generated an enormous flood by dam breaching on 20 May 1515, known as the “Buzza di Biasca”.

Item Type:	Scientific journal article, Newspaper article or Magazine article
Subjects:	Physical sciences > Geology Physical sciences > Geology > Earth science Physical sciences > Geology > Earth science > Geoscience Physical sciences > Geology > Earth science > Quaternary studies Physical sciences > Geology > Geohazards
Department/unit:	Dipartimento ambiente costruzioni e design > Istituto scienze della Terra
Depositing User:	Alessandro De Pedrini
Date Deposited:	31 Jan 2023 05:22
Last Modified:	31 Jan 2023 05:23
URI:	http://repository.supsi.ch/id/eprint/13768

Actions (login required)

View Item