气候变化领域集成服务门户(CCPortal): Dynamic hazard assessment of group-occurring debris flows based on a coupled model

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DOI	10.1007/s11069-021-04558-3
	Dynamic hazard assessment of group-occurring debris flows based on a coupled model
	Nie Y.; Li X.; Zhou W.; Xu R.
发表日期	2021
ISSN	0921030X
起始页码	2635
结束页码	2661
卷号	106 期号:3
英文摘要	A scientific hazard zoning of debris flows can ensure that human activities are not performed therein, thereby reducing economic loss as much as possible. In this study, by considering the formation background conditions of mountain hazards and dynamic rainfall conditions, the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Model (TRIGRS) and Flow path assessment of gravitational hazards at a Regional scale (Flow-R) are organically combined to establish a new coupled model for debris flow dynamic hazard assessment from the viewpoint of landslides providing the material source of debris flows. The coupled model was employed in Qingping township, Sichuan province of China, which was severely damaged by the “5·12” Wenchuan earthquake in 2008. Evaluation results show that the accuracy of the coupled model is 87.98%, which is significantly higher than that of the static Flow-R model (75.51%). This study not only considers the effect of the formation condition of mountain hazards and rainfall-induced shallow landslides on the source of debris flows, but also realises real-time hazard assessment and prediction of group-occurring debris flows. The coupled model used in this study provides a new perspective and is paramount for improving the accuracy and reliability of debris flow hazard assessment. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.
关键词	Coupled model Dynamic hazard assessment Flow-R model Group-occurring debris flows TRIGRS model
英文关键词	debris flow; flow modeling; gravity field; hazard assessment; mountain region; rainfall; China; Qingping; Sichuan
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206454
作者单位	Key Laboratory of Mountain Hazards and Earth Surface Process, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; Village and Town Construction Service Center of Longgang Town of Kaiyang County, Guiyang, Guizhou 550000, China; Department of Geology and Geological Engineering, Colorado School of Mines, Golden, CO, United States
推荐引用方式 GB/T 7714	Nie Y.,Li X.,Zhou W.,et al. Dynamic hazard assessment of group-occurring debris flows based on a coupled model[J],2021,106(3).
APA	Nie Y.,Li X.,Zhou W.,&Xu R..(2021).Dynamic hazard assessment of group-occurring debris flows based on a coupled model.Natural Hazards,106(3).
MLA	Nie Y.,et al."Dynamic hazard assessment of group-occurring debris flows based on a coupled model".Natural Hazards 106.3(2021).