Timing and identification of potential snow avalanche types: a case study of the central Tianshan Mountains
文献类型：期刊论文
| 作者 | Hao, Jiansheng3,5; Zhang, Zhengtao1,2; Li, Lanhai4,5,6 |
| 刊名 | LANDSLIDES
 |
| 出版日期 | 2021-09-23 |
| 页码 | 12 |
| 关键词 | Snow avalanche type Snow-soil interaction Monitoring snowpack and soil Avalanche risk management |
| ISSN号 | 1612-510X |
| DOI | 10.1007/s10346-021-01766-7 |
| 通讯作者 | Hao, Jiansheng(haojiansheng14@mails.ucas.ac.cn) |
| 英文摘要 | Identifying and tracking the potential avalanche types is the first step toward characterizing an avalanche problem and a fundamental principle of effective avalanche risk management and forecasting. However, identifying potential avalanche types has been a challenging and unsolved problem. Taking into account the characteristics of snow and position of failure layer during the avalanche activity, avalanches were classified into full-depth dry snow avalanche (FDA), full-depth wet snow avalanche (FWA), surface-layer dry snow avalanche (SDA), and surface-layer wet snow avalanche (SWA). Based on a unique data set of avalanche, weather, soil, and snowpack records from four snow seasons (2015/2016-2018/2019) in the upper reaches of the Kunse River Valley in the central Tianshan Mountains with continental snow climate, this study analyzed the time intervals and triggering factors of various avalanches. Moreover, the characteristics of snowpack and the conditions of weather and soil in the time intervals of various avalanches have been compared. The results showed that FDA and FWA prevailed at the beginning and end of the snow season, which was characterized by high surface soil moisture content (>= 0.32 m(3)/m(3)) and high surface soil temperature (>= 0 degrees C). During the periods of FWA activity, the increase of air temperature and the decrease of snow depth were significantly stronger than that during the periods of FDA. SDA and SWA mainly occurred in the middle of the snow season, which was characterized by low surface soil moisture content (<= 0.32 m(3)/m(3)), high surface soil temperature (<= 0 degrees C), and persistent weak layer in the snowpack. Compared with the period of SDA activity, the prevalence period of SWA was characterized by the moisture content of surface snow at more than 3% and the infiltration from snowmelt water appeared in the snowpack. These results provide detailed information on the identification of potential avalanche types by monitoring snowpack, soil, and weather data, which would help avalanche risk management and forecasting. |
| WOS关键词 | LIQUID WATER-CONTENT ; WET-SNOW ; GLIDE AVALANCHES ; SLAB ; VARIABILITY ; EARTHQUAKE ; STABILITY ; FRACTURE ; DENSITY ; CLIMATE |
| 资助项目 | Second Tibet Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0906] ; National Natural Science Foundation of China[42101080] ; Sichuan Science and Technology Program[2021YFH0009] ; National Natural Science Foundation of China (NSFC)[U1703241] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000698549300001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | Second Tibet Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; Sichuan Science and Technology Program ; National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/165732]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Hao, Jiansheng |
| 作者单位 | 1.Beijing Normal Univ, Fac Geog Sci, Minist Emergency Management, Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, Minist Educ, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 4.Xinjiang Key Lab Water Cycle & Utilizat Arid Zone, Urumqi 830011, Xinjiang, Peoples R China 5.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China 6.Chinese Acad Sci, Ili Stn Watershed Ecosyst Res, Xinyuan 835800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Jiansheng,Zhang, Zhengtao,Li, Lanhai. Timing and identification of potential snow avalanche types: a case study of the central Tianshan Mountains[J]. LANDSLIDES,2021:12. |
| APA | Hao, Jiansheng,Zhang, Zhengtao,&Li, Lanhai.(2021).Timing and identification of potential snow avalanche types: a case study of the central Tianshan Mountains.LANDSLIDES,12. |
| MLA | Hao, Jiansheng,et al."Timing and identification of potential snow avalanche types: a case study of the central Tianshan Mountains".LANDSLIDES (2021):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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