Meteorological factors driving glacial till variation and the associated periglacial debris flows in Tianmo Valley, south-eastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Deng, Mingfeng1,2 ; Chen, Ningsheng1; Liu, Mei1,2
|
| 刊名 | NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
 |
| 出版日期 | 2017-03-08 |
| 卷号 | 17期号:3页码:345-356 |
| 关键词 | CASE-HISTORY SLOPES RUNOFF PERMAFROST MAGNITUDE FREQUENCY LANDSLIDE AREAS ENVIRONMENTS TEMPERATURE |
| ISSN号 | 1561-8633 |
| 通讯作者 | Ningsheng Chen |
| 英文摘要 | Meteorological studies have indicated that high alpine environments are strongly affected by climate warming, and periglacial debris flows are frequent in deglaciated regions. The combination of rainfall and air temperature controls the initiation of periglacial debris flows, and the addition of meltwater due to higher air temperatures enhances the complexity of the triggering mechanism compared to that of storm-induced debris flows. On the south-eastern Tibetan Plateau, where temperate glaciers are widely distributed, numerous periglacial debris flows have occurred over the past 100 years, but none occurred in the Tianmo watershed until 2007. In 2007 and 2010, three large-scale debris flows occurred in the Tianmo Valley. In this study, these three debris flow events were chosen to analyse the impacts of the annual meteorological conditions, including the antecedent air temperature and meteorological triggers. The remote sensing images and field measurements of the adjacent glacier suggested that sharp glacier retreats occurred in the 1 to 2 years preceding the events, which coincided with spikes in the mean annual air temperature. Glacial till changes providing enough active sediment driven by a prolonged increase in the air temperature are a prerequisite of periglacial debris flows. Different factors can trigger periglacial debris flows, and they may include high-intensity rainfall, as in the first and third debris flows, or continuous, long-term increases in air temperature, as in the second debris flow event. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources |
| 研究领域[WOS] | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 关键词[WOS] | CASE-HISTORY ; SLOPES ; RUNOFF ; PERMAFROST ; MAGNITUDE ; FREQUENCY ; LANDSLIDE ; AREAS ; ENVIRONMENTS ; TEMPERATURE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000396208000002 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/18586]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Mingfeng,Chen, Ningsheng,Liu, Mei. Meteorological factors driving glacial till variation and the associated periglacial debris flows in Tianmo Valley, south-eastern Tibetan Plateau[J]. NATURAL HAZARDS AND EARTH SYSTEM SCIENCES,2017,17(3):345-356. |
| APA | Deng, Mingfeng,Chen, Ningsheng,&Liu, Mei.(2017).Meteorological factors driving glacial till variation and the associated periglacial debris flows in Tianmo Valley, south-eastern Tibetan Plateau.NATURAL HAZARDS AND EARTH SYSTEM SCIENCES,17(3),345-356. |
| MLA | Deng, Mingfeng,et al."Meteorological factors driving glacial till variation and the associated periglacial debris flows in Tianmo Valley, south-eastern Tibetan Plateau".NATURAL HAZARDS AND EARTH SYSTEM SCIENCES 17.3(2017):345-356. |
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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