The triggering mechanisms for different types of snow avalanches in the continental snow climate of the central Tianshan Mountains
文献类型：期刊论文
| 作者 | Hao, Jiansheng2; Cui, Peng2,3; Zhang, Xueqin2; Li, Lanhai1,4 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2022-09-19 |
| 页码 | 14 |
| 关键词 | Continental snow climate Avalanche disaster Snow-layer failure Shear fracture modes Avalanche-triggering modes Central Tianshan Mountains |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-021-9983-0 |
| 通讯作者 | Cui, Peng(pengcui@imde.ac.cn) |
| 英文摘要 | Climate change and human activities have increased avalanche risks in alpine mountains. Therefore, strengthening the research on mitigating and controlling avalanche disasters is indispensable for sustainable socio-economic development in mountainous areas. Early avalanche warning is an essential means of avalanche disaster prevention. However, the theoretical development and application of avalanche warning strategies remain limited due to the lack of systematic understanding of the triggering mechanisms of avalanches. Based on observational data (2015-2019) of avalanches, snowpack, meteorological parameters, surface soil temperature and moisture, and topography in avalanche-prone areas in the central Tianshan Mountains, we analyzed the characteristics of different types of avalanches under a continental snow climate and the environmental factors (such as meteorological conditions and snowpack) that trigger avalanches, as well as the triggering mechanisms for different types of avalanches under the continental snow climate in terms of snow-layer shear fracture modes. We found that the snowpack parameters, weather conditions, and soil temperature and moisture varied significantly among the stages of snow accumulation, stabilization, and melting, resulting in different avalanches prevailing in different stages of snowpack evolution. Moreover, the snow-layer fractures were driven by single external factors or the combined multiple factors under the continental snow climate. Fifty-four percent of the avalanche events in the study area occurred during or after a snowfall, with 36% related to sudden increases in temperature. Then considering different triggering scenarios, snowpack evolution stages, and the coupling of intrinsic and extrinsic drivers of triggering snow-layer shear failure, we constructed five snow-layer shear fracture modes and twelve avalanche-triggering modes on mountain slopes under a continental snow climate. |
| WOS关键词 | LIQUID WATER-CONTENT ; WET-SNOW ; SHEAR FRACTURE ; IMPACTS ; WEATHER |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23090302] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0906] ; National Natural Science Foundation of China[42101080] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000859163400001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/184919]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cui, Peng |
| 作者单位 | 1.Chinese Acad Sci, Ili Stn Watershed Ecosyst Res, Xinyuan 835800, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Chinese Acad Sci Higher Educ Commiss Pakistan, China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan 4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Jiansheng,Cui, Peng,Zhang, Xueqin,et al. The triggering mechanisms for different types of snow avalanches in the continental snow climate of the central Tianshan Mountains[J]. SCIENCE CHINA-EARTH SCIENCES,2022:14. |
| APA | Hao, Jiansheng,Cui, Peng,Zhang, Xueqin,&Li, Lanhai.(2022).The triggering mechanisms for different types of snow avalanches in the continental snow climate of the central Tianshan Mountains.SCIENCE CHINA-EARTH SCIENCES,14. |
| MLA | Hao, Jiansheng,et al."The triggering mechanisms for different types of snow avalanches in the continental snow climate of the central Tianshan Mountains".SCIENCE CHINA-EARTH SCIENCES (2022):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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