Hillslope torrential hazard cascades in tropical mountains

Arango-Carmona, Maria Isabel; Voit, Paul; Hürlimann, Marcel; Aristizábal, Edier; Korup, Oliver

doi:https://doi.org/10.5194/nhess-25-3641-2025

Articles | Volume 25, issue 9

https://doi.org/10.5194/nhess-25-3641-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-25-3641-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 9

Research article

|

26 Sep 2025

Research article |

| 26 Sep 2025

Hillslope torrential hazard cascades in tropical mountains

Maria Isabel Arango-Carmona, Paul Voit, Marcel Hürlimann, Edier Aristizábal, and Oliver Korup

Data sets

ALOS PALSAR digital elevation model (Radiometric Terrain Corrected, version 12.5\,m) ASF DAAC https://doi.org/10.5067/Z97HFCNKR6VA

CHIRPS rainfall estimates (Climate Hazards Group InfraRed Precipitation with Stations, version 2.0) C. Funk et al. https://doi.org/10.1038/sdata.2015.66

Global soil information (SoilGrids 2.0, ISRIC) L. Poggio et al. https://doi.org/10.5194/soil-7-217-2021

Short summary

We studied 22 cascading landslide and torrential events in tropical mountains to understand how rainfall, slopes, and soil types interact to trigger them. We found that extreme rainfall alone is not always the cause and long wet periods and sediment type also play a role. Our findings can help improve warning systems and reduce disaster risks in vulnerable regions.