Articles | Volume 23, issue 3
https://doi.org/10.5194/nhess-23-1191-2023
https://doi.org/10.5194/nhess-23-1191-2023
Research article
 | 
22 Mar 2023
Research article |  | 22 Mar 2023

Rainfall thresholds estimation for shallow landslides in Peru from gridded daily data

Carlos Millán-Arancibia and Waldo Lavado-Casimiro

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Cited articles

Abraham, M. T., Pothuraju, D., and Satyam, N.: Rainfall thresholds for prediction of landslides in Idukki, India: An empirical approach, Water, 11, 1–16, https://doi.org/10.3390/w11102113, 2019. a
Abraham, M. T., Satyam, N., Pradhan, B., and Alamri, A. M.: Forecasting of Landslides Using Rainfall Severity and Soil Wetness: A Probabilistic Approach for Darjeeling Himalayas, Water, 12, 804, https://doi.org/10.3390/w12030804, 2020. a
Augusto Filho, O., da Silva Júnior, P. S., and Eiras, C. G. S.: Simple rainfall indices for forecasting hazardous events of hydrologic and geologic nature, Nat. Hazards, 101, 689–709, https://doi.org/10.1007/s11069-020-03890-4, 2020. a, b
Aybar, C., Fernández, C., Huerta, A., Lavado, W., Vega, F., and Felipe-Obando, O.: Construction of a high-resolution gridded rainfall dataset for Peru from 1981 to the present day, Hydrolog. Sci. J., 65, 770–785, https://doi.org/10.1080/02626667.2019.1649411, 2020. a
Berti, M., Bernard, M., Gregoretti, C., and Simoni, A.: Physical Interpretation of Rainfall Thresholds or Runoff-Generated Debris Flows, J. Geophys. Res.-Earth, 125, e2019JF005513, https://doi.org/10.1029/2019JF005513, 2020. a
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This study is the first approximation of regional rainfall thresholds for shallow landslide occurrence in Peru. This research was generated from a gridded precipitation data and landslide inventory. The analysis showed that the threshold based on the combination of mean daily intensity–duration variables gives the best results for separating rainfall events that generate landslides. Through this work the potential of thresholds for landslide monitoring at the regional scale is demonstrated.
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