Articles | Volume 19, issue 4
Nat. Hazards Earth Syst. Sci., 19, 775–789, 2019
https://doi.org/10.5194/nhess-19-775-2019
Nat. Hazards Earth Syst. Sci., 19, 775–789, 2019
https://doi.org/10.5194/nhess-19-775-2019

Research article 15 Apr 2019

Research article | 15 Apr 2019

A susceptibility-based rainfall threshold approach for landslide occurrence

Elise Monsieurs et al.

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Cited articles

Aleotti, P.: A warning system for rainfall-induced shallow failures, Eng. Geol., 73, 247–265, https://doi.org/10.1016/j.enggeo.2004.01.007, 2004. 
Althuwaynee, O., Pradhan, B., and Ahmad, N.: Estimation of rainfall threshold and its use in landslide hazard mapping of Kuala Lumpur metropolitan and surrounding areas, Landslides, 12, 861–875, https://doi.org/10.1007/s10346-014-0512-y, 2015. 
Aristizábal, E., García, E., and Martínez, C.: Susceptibility assessment of shallow landslides triggered by rainfall in tropical basins and mountainous terrains, Nat. Hazards, 78, 621–634, https://doi.org/10.1007/s11069-015-1736-4, 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.-Earth, 117, 1–20, https://doi.org/10.1029/2012JF002367, 2012. 
Bogaard, T. and Greco, R.: Invited perspectives: Hydrological perspectives on precipitation intensity-duration thresholds for landslide initiation: Proposing hydro-meteorological thresholds, Nat. Hazards Earth Syst. Sci., 18, 31–39, https://doi.org/10.5194/nhess-18-31-2018, 2018. 
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We propose in this study a fundamentally new approach for the definition of minimum rainfall required for the initiation of landslides based on satellite-derived antecedent rainfall estimates directly coupled with data on surface susceptibility for landslides. We apply our approach in the western branch of the East African Rift and provide first regional rainfall thresholds for landsliding in tropical Africa.
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