IMHE OpenIR  > 山地灾害与地表过程重点实验室
Real-time observation of an active debris flow watershed in the Wenchuan Earthquake area
Cui, Peng1,2; Guo, Xiaojun1; Yan, Yan1,3; Li, Yong1; Ge, Yonggang1
2018
Source PublicationGEOMORPHOLOGY
ISSN0169-555X
EISSN1872-695X
Volume321Pages:153-166
SubtypeArticle
AbstractDebris flows occur frequently and cause considerable damage in the Wenchuan Earthquake area; however, there has been no systematic real-time monitoring of such events. This study used a monitoring system to consider the spatial variation of meteorological and flow processes in a 39.4 km(2) watershed. The system comprised three rainfall gauges at different locations, and three hydrological monitoring stations, located on the mainstream and tributaries, with instruments to measure the velocity, height, and density of debris flows. Based on the monitoring data, the debris flow events were categorized and the general runoff velocity, discharge, and density were analysed. We proposed empirical methods for estimating the velocity and the total volume of debris flows based on other easily obtainable parameters, e.g., maximum flow depth and duration. Comparison of the results derived using the monitoring data and empirical formulas with those obtained in other small watersheds worldwide revealed the debris flow characteristics in this relatively large watershed. Rainfall threshold for the debris flows was proposed, which is higher than those proposed for the same region for periods shortly after the Wenchuan Earthquake (2008 similar to 2013), and the temporal evolution of the rainfall conditions necessary for debris flows was addressed. (C) 2018 Elsevier B.V. All rights reserved.
KeywordDebris flow Monitoring Discharge Velocity Rainfall threshold Wenchuan Earthquake
DOI10.1016/j.geomorph.2018.08.024
Indexed BySCI
WOS KeywordRAINFALL THRESHOLDS ; ITALIAN ALPS ; TORRENT ; CLASSIFICATION ; TRANSFORMATION ; PROPAGATION ; DOLOMITES ; VELOCITY ; SYSTEMS ; DESIGN
Language英语
Quartile2区
Funding ProjectNational Research Project[2017YFC1502504] ; International S&T Cooperation Project[2016YFE0122400] ; Open Fund[SKLGP2017K013] ; Youth Innovation Promotion Association
TOP
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000447475900012
Funding OrganizationNational Research Project ; International S&T Cooperation Project ; Open Fund ; Youth Innovation Promotion Association
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/24043
Collection山地灾害与地表过程重点实验室
Corresponding AuthorGuo, Xiaojun
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Southwest Jiaotong Univ, Coll Civil Engn, Chengdu 611756, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Cui, Peng,Guo, Xiaojun,Yan, Yan,et al. Real-time observation of an active debris flow watershed in the Wenchuan Earthquake area[J]. GEOMORPHOLOGY,2018,321:153-166.
APA Cui, Peng,Guo, Xiaojun,Yan, Yan,Li, Yong,&Ge, Yonggang.(2018).Real-time observation of an active debris flow watershed in the Wenchuan Earthquake area.GEOMORPHOLOGY,321,153-166.
MLA Cui, Peng,et al."Real-time observation of an active debris flow watershed in the Wenchuan Earthquake area".GEOMORPHOLOGY 321(2018):153-166.
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