Real-time observation of an active debris flow watershed in the Wenchuan Earthquake area
文献类型：期刊论文
| 作者 | Cui, Peng1,2 ; Guo, Xiaojun1; Yan, Yan1,3; Li, Yong1; Ge, Yonggang1
|
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2018-11-15 |
| 卷号 | 321页码:153-166 |
| 关键词 | Debris flow Monitoring Discharge Velocity Rainfall threshold Wenchuan Earthquake |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2018.08.024 |
| 英文摘要 | Debris 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000447475900012 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.imde.ac.cn/handle/131551/24043]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Guo, Xiaojun |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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