A susceptibility-based rainfall threshold  approach for landslide occurrence

Monsieurs, Elise; Dewitte, Olivier; Demoulin, Alain

doi:https://doi.org/10.5194/nhess-19-775-2019

Articles | Volume 19, issue 4

https://doi.org/10.5194/nhess-19-775-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-19-775-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 4

Research article

|

15 Apr 2019

Research article |

| 15 Apr 2019

A susceptibility-based rainfall threshold approach for landslide occurrence

Elise Monsieurs, Olivier Dewitte, and Alain Demoulin

Supplement

https://doi.org/10.5194/nhess-19-775-2019-supplement

Data sets

TRMM (TMPA-RT) Near Real-Time Precipitation L3 3 hour 0.25 degree x 0.25 degree V7 G. Huffman https://doi.org/10.5067/TRMM/TMPA/3H-E/7

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Short summary

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.