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Characteristics of rainfall responsible for debris flows in Wenchuan Earthquake area
Guo, Xiaojun1; Cui, Peng1,2; Marchi, Lorenzo3; Ge, Yonggang1
Corresponding AuthorXiaojun Guo1

The ability to forecast debris flows is important because of their frequent occurrence and potential for large-scale damage in the Wenchuan Earthquake-hit area. Accurate understanding of the characteristics of rainfall responsible for triggering debris flows is necessary for an effective early warning procedure. This study examined the general characteristics and spatiotemporal variation of rainfall events that responsible for debris flows. Analysis was performed on rainfall data extracted during 2008-2013. The results revealed that the rainfall thresholds for debris flows varied annually and showed tendency toward higher conditions required. The coefficient of variation of relevant rainfall events indicated that the characteristics of the rainstorms changed. In addition, the coefficient of deviation revealed the spatial variation of rainfall in subregions, which was attributed to differences of the local climatic conditions that control debris flow occurrence. The primary controlling rainfall indices for triggering debris flows were filtered, and the most suitable models for establishing rainfall thresholds were selected. Ultimately, the rainfall thresholds were obtained for each subregion within the study area.

KeywordDebris Flows Inducing Rainfall Triggering Rainfall Intensity Rainfall Thresholds Wenchuan Earthquake Area
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000410817000008
Funding OrganizationKey International S&T Cooperation Project(2016YFE0122400) ; key Scientific Project of Sichuan Department of land and resources(KJ-2015-18)
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Hazards, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.CNR, IRPI, I-35127 Padua, Italy
Recommended Citation
GB/T 7714
Guo, Xiaojun,Cui, Peng,Marchi, Lorenzo,et al. Characteristics of rainfall responsible for debris flows in Wenchuan Earthquake area[J]. ENVIRONMENTAL EARTH SCIENCES,2017,76(17):596.
APA Guo, Xiaojun,Cui, Peng,Marchi, Lorenzo,&Ge, Yonggang.(2017).Characteristics of rainfall responsible for debris flows in Wenchuan Earthquake area.ENVIRONMENTAL EARTH SCIENCES,76(17),596.
MLA Guo, Xiaojun,et al."Characteristics of rainfall responsible for debris flows in Wenchuan Earthquake area".ENVIRONMENTAL EARTH SCIENCES 76.17(2017):596.
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