Articles | Volume 18, issue 5
https://doi.org/10.5194/nhess-18-1395-2018
https://doi.org/10.5194/nhess-18-1395-2018
Research article
 | 
17 May 2018
Research article |  | 17 May 2018

Rainfall threshold calculation for debris flow early warning in areas with scarcity of data

Hua-Li Pan, Yuan-Jun Jiang, Jun Wang, and Guo-Qiang Ou

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Latest update: 25 Feb 2024
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Short summary
Debris flow early warning has always been based on well-calibrated rainfall thresholds. For areas where historical data are insufficient, to determine a rainfall threshold, it is necessary to develop a method to obtain the threshold by using limited data. A quantitative method, a new way to calculate the rainfall threshold, is developed in this study, which combines the initiation mechanism of hydraulic-driven debris flow with the runoff yield and concentration laws of the watershed.
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