Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
doi:10.5194/nhess-2016-149
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
10 May 2016
Review status
This discussion paper has been under review for the journal Natural Hazards and Earth System Sciences (NHESS). The revised manuscript was not accepted.
A preliminary study on the comprehensive threshold for debris-flow early warning
Xiaoqiang Xue and Jian Huang State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology, Chengdu, Sichuan 610059, China
Abstract. Debris-flows not only cause a great loss of property, but also kill and injure people every rainy season in the mountainous regions of China. In order to reduce hazard and risk, several methods of assessing rainfall thresholds have been provided at present, based on statistical models. However, the limited rainfall data with debris-flow occurrence or non-occurrence makes threshold analyses very difficult. This paper, therefore, presented a kind of comprehensive threshold consisting of pore-water pressure from Terzaghi theory, and rainfall factors from frequent usage for predicting debris-flow occurrence. Rainfall and pore pressure data has been collected in a number of locations in Wenjiagou gully to assess critical rainfall and pore pressure values for debris flow initiation. The three-level early warning criteria (Zero, Attention, and Warning) has been adopted and the corresponding judgement conditions has been defined based on monitoring data in a real-time way. Finally, it is suggested that the combination of these two critical values might be a useful approach in a warning system for safeguarding of population in debris-flow prone areas.

Citation: Xue, X. and Huang, J.: A preliminary study on the comprehensive threshold for debris-flow early warning, Nat. Hazards Earth Syst. Sci. Discuss., doi:10.5194/nhess-2016-149, 2016.
Xiaoqiang Xue and Jian Huang
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
 
RC1: 'Comment to nhess-2016-149', Anonymous Referee #1, 27 May 2016 Printer-friendly Version 
AC1: 'Response to Editor and Reviewer #1', Huang Jian, 16 Jun 2016 Printer-friendly Version Supplement 
 
RC2: 'Comment to NHESS 2016 -149', Anonymous Referee #2, 05 Jun 2016 Printer-friendly Version 
AC2: 'Response to Editor and Reviewer #2', Huang Jian, 16 Jun 2016 Printer-friendly Version Supplement 
Xiaoqiang Xue and Jian Huang
Xiaoqiang Xue and Jian Huang

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Short summary
Two aspects of this manuscript we have done. First, a comprehensive threshold consisting of pore-water pressure from Terzaghi theory, and rainfall factors from frequent usage for predicting debris-flow occurrence is presented. Second, the three-level early warning criteria (Zero, Attention, and Warning) has been adopted and the corresponding judgement conditions has been defined based on monitoring data in a real-time way, which is might be a useful approach for a real-time warning system.
Two aspects of this manuscript we have done. First, a comprehensive threshold consisting of...
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