Articles | Volume 23, issue 6
https://doi.org/10.5194/nhess-23-2349-2023
https://doi.org/10.5194/nhess-23-2349-2023
Research article
 | 
28 Jun 2023
Research article |  | 28 Jun 2023

Accounting for the effect of forest and fragmentation in probabilistic rockfall hazard

Camilla Lanfranconi, Paolo Frattini, Gianluca Sala, Giuseppe Dattola, Davide Bertolo, Juanjuan Sun, and Giovanni Battista Crosta

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Cited articles

Agliardi, F., Crosta, G. B., and Frattini, P.: Integrating rockfall risk assessment and countermeasure design by 3D modelling techniques, Nat. Hazards Earth Syst. Sci., 9, 1059–1073, https://doi.org/10.5194/nhess-9-1059-2009, 2009. 
Azzoni, A., La Barbera, G., and Zaninetti, A.: Analysis and prediction of rockfalls using a mathematical model, Int. J. Rock Mech, 32, 709–724, 1995. 
Berger, F. and Dorren, L. K.: Principles of the tool Rockfor.net for quantifying the rockfall hazard below a protection forest, Schweiz. Z. fur Forstwes., 158, 157–165, https://doi.org/10.3188/szf.2007.0157, 2007. 
Berger, F., Quetel, C., and Dorren, L. K.: Forest: a natural protection mean against rockfalls, but with which efficiency, International congress INTERPRAEVENT, 2, 815–826, 2002. 
Bigot, C., Dorren, L. K., and Berger, F.: Quantifying the protective function of a forest against rockfall for past, present and future scenarios using two modelling approaches, Nat. hazards, 49, 99–111, 2009. 
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This paper presents a study on rockfall dynamics and hazard, examining the impact of the presence of trees along slope and block fragmentation. We compared rockfall simulations that explicitly model the presence of trees and fragmentation with a classical approach that accounts for these phenomena in model parameters (both the hazard and the kinetic energy change). We also used a non-parametric probabilistic rockfall hazard analysis method for hazard mapping.
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