Geomorphic controls on debris flow activity in the paraglacial zone of the Southeast Tibetan Plateau
文献类型：期刊论文
| 作者 | Wang, Jiao1; Wang, Hao; Jiang, Yao1; Zhang, Guotao2; Zhao, Bo; Lei, Yu1 |
| 刊名 | NATURAL HAZARDS
 |
| 出版日期 | 2023-05-01 |
| 卷号 | N/A |
| 关键词 | Glacier debris flow Debris flow activity Topographic feature Periglacial area Parlung Tsangpo Basin |
| DOI | 10.1007/s11069-023-05889-z |
| 文献子类 | Article ; Early Access |
| 英文摘要 | On the southeastern Tibetan Plateau, an area widely covered by alpine glaciers, two types of debris flow generally occur: glacier-related debris flows (GDFs) and rainfall-related debris flows (RDFs). It is widely accepted that topographic conditions influence debris flow activities; however, few studies have examined the differences between such influence on GDFs and RDFs. This study investigated the GDFs and RDFs in the periglacial area of the Parlung Tsangpo Basin, and calculated 12 geomorphic indexes to reveal the topographic features associated with these two types of debris flow. It was found that lower values in the drainage area, main channel length, and relative elevation occurred in RDFs compared to the GDFs. In contrast, higher values in the channel gradient, relief ratio, and effective basin area appeared in RDFs. The discrepancy is mainly related to the different topographic and geomorphic shaping of modern glaciers. According to its geomorphological characteristics, the Parlung Tsangpo Basin can be divided into the upper V-shaped canyon section, middle wide valley section, and lower steep canyon section. The scale and frequency of debris flow in the upstream canyon region are substantially lower than those in the downstream. Moreover, the frequency and scale of RDFs are considerably different from those of GDFs, primarily because of the different geomorphic evolutionary stages of debris flow gullies in different regions. |
| WOS关键词 | RIVER INCISION ; MORPHOMETRIC-ANALYSIS ; RISK-ASSESSMENT ; EVOLUTION ; INITIATION ; VALLEY ; EROSION ; AMPLIFICATION ; MECHANISMS ; MORPHOLOGY |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
| WOS记录号 | WOS:000947548800005 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200717]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Hazards, Chengdu 610041, Peoples R China 2.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jiao,Wang, Hao,Jiang, Yao,et al. Geomorphic controls on debris flow activity in the paraglacial zone of the Southeast Tibetan Plateau[J]. NATURAL HAZARDS,2023,N/A. |
| APA | Wang, Jiao,Wang, Hao,Jiang, Yao,Zhang, Guotao,Zhao, Bo,&Lei, Yu.(2023).Geomorphic controls on debris flow activity in the paraglacial zone of the Southeast Tibetan Plateau.NATURAL HAZARDS,N/A. |
| MLA | Wang, Jiao,et al."Geomorphic controls on debris flow activity in the paraglacial zone of the Southeast Tibetan Plateau".NATURAL HAZARDS N/A(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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