Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 20, issue 8
Articles | Volume 20, issue 8
https://doi.org/10.5194/nhess-20-2307-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-20-2307-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 8
Research article
 | 
25 Aug 2020
Research article |  | 25 Aug 2020

Rainfall and rockfalls in the Canary Islands: assessing a seasonal link

Massimo Melillo, Stefano Luigi Gariano, Silvia Peruccacci, Roberto Sarro, Rosa Marìa Mateos, and Maria Teresa Brunetti

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Cited articles

Alpert, P., Ben-Gai, T., Baharan, A., Benjamini, Y., Yekutieli, D., Colacino, M., Diodato, L., Ramis, C., Homar, V., Romero, R., Michaelides, S., and Manes, A.: The paradoxical increase of Mediterranean extreme daily rainfall in spite of decrease in total values, Geophy. Res. Lett., 29, 31-1–31-4, https://doi.org/10.1029/2001GL013554, 2002. 
Ansari, M. K., Ahmed, M., Rajesh Singh, T. N., and Ghalayani, I.: Rainfall, a major cause for rockfall hazard along the roadways, highways and railways on hilly terrains in India, in: Engineering Geology for Society and Territory – Vol. 1, edited by: Lollino, G., Manconi, A., Clague, J., Shan, W., and Chiarle, M., Springer, Cham, 457–460, https://doi.org/10.1007/978-3-319-09300-0_87, 2015. 
Berti, M., Martina, M. L. V., Franceschini, S., Pignone, S., Simoni, A., and Pizziolo, M.: Probabilistic rainfall thresholds for landslide occurrence using a Bayesian approach, J. Geophys. Res., 117, F04006, https://doi.org/10.1029/2012JF002367, 2012. 
Brunetti, M.T., Peruccacci, S., Rossi, M., Luciani, S., Valigi, D., and Guzzetti, F.: Rainfall thresholds for the possible occurrence of landslides in Italy, Nat. Hazards Earth Syst. Sci., 10, 447–458, https://doi.org/10.5194/nhess-10-447-2010, 2010. 
Cepeda, J., Höeg, K., and Nadim, F.: Landslide-triggering rainfall thresholds: a conceptual framework, Q. J. Eng. Geol. Hydrog., 43, 69–84, https://doi.org/10.1144/1470-9236/08-066, 2010. 
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In the Canary Islands, a link between rainfall and rockfall occurrence is found for most of the year, except for the warm season. Empirical rainfall thresholds for rockfalls are first proposed for Gran Canaria and Tenerife, and the dependence of the thresholds on the mean annual rainfall is discussed. The use of thresholds in early-warning systems might contribute to the mitigation of the rockfall hazard in the archipelago and reduce the associated risk.
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