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Intensity-duration threshold of rainfall-triggered debris flows in the Wenchuan Earthquake affected area, China
Guo, Xiaojun1,2; Cui, Peng1,3; Li, Yong1; Ma, Li4; Ge, Yonggang1; Mahoney, William B.5
Corresponding AuthorCui, Peng
2016
Source PublicationGEOMORPHOLOGY
ISSN0169-555X
EISSN1872-695X
Volume253Pages:208-216
SubtypeArticle
AbstractThe Ms 8.0 Wenchuan Earthquake has greatly altered the rainfall threshold for debris flows in the affected areas. This study explores the local intensity-duration (I-D) relationship based on 252 post-earthquake debris flows. It was found that I = 525 D-0.76 accounts for more than 98% of the debris flow occurrences with rainfall duration between 1 and 135 h; therefore the curve defines the threshold for debris flows in the study area. This gives much lower thresholds than those proposed by the previous studies, suggesting that the earthquake has greatly decreased the thresholds in the past years. Moreover, the rainfall thresholds appear to increase annually in the period of 2008-2013, and present a logarithmic increasing tendency, indicating that the thresholds will recover in the future decades. (C) 2015 Elsevier B.V. All rights reserved.
KeywordDebris Flows I-d Relationship Loose Material Rainfall Thresholds Wenchuan Earthquake Affected Area
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.geomorph.2015.10.009
WOS Subject ExtendedPhysical Geography ; Geology
Indexed BySCI
WOS KeywordSHALLOW LANDSLIDES ; INITIATION ; COLORADO ; RUNOFF ; FLOODS ; MODEL ; NEPAL
Language英语
Quartile2区
TOP
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000367114100019
Funding OrganizationKey Deployment Project of Chinese Academy of Sciences(KZZD-EW-05-01) ; National Natural Science Foundation(41301008) ; National Key Technologies R&D Program of China(2012BAK10B04)
Citation statistics
Cited Times:56[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/14021
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Sichuan Meteorol Adm, Chengdu 610072, Peoples R China
5.Int Eros Control Assoc, Denver, CO 80207 USA
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Guo, Xiaojun,Cui, Peng,Li, Yong,et al. Intensity-duration threshold of rainfall-triggered debris flows in the Wenchuan Earthquake affected area, China[J]. GEOMORPHOLOGY,2016,253:208-216.
APA Guo, Xiaojun,Cui, Peng,Li, Yong,Ma, Li,Ge, Yonggang,&Mahoney, William B..(2016).Intensity-duration threshold of rainfall-triggered debris flows in the Wenchuan Earthquake affected area, China.GEOMORPHOLOGY,253,208-216.
MLA Guo, Xiaojun,et al."Intensity-duration threshold of rainfall-triggered debris flows in the Wenchuan Earthquake affected area, China".GEOMORPHOLOGY 253(2016):208-216.
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