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DOI | 10.1007/s11629-020-6118-y |
Numerical simulation of seasonal snow in Tianshan Mountains | |
Ren Yan-run; Zhang Yao-nan; Hao Jian-sheng; Shen Yong-ping; Zhao Guo-hui; Li Cong | |
通讯作者 | Zhang, YN (通讯作者),Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. ; Zhang, YN (通讯作者),Natl Cryosphere Desert Data Ctr, Lanzhou 730000, Peoples R China. |
发表日期 | 2021 |
ISSN | 1672-6316 |
EISSN | 1993-0321 |
起始页码 | 338 |
结束页码 | 356 |
卷号 | 18期号:2 |
英文摘要 | Snowfall in the Tianshan Mountains in China is frequent during winter; thus, avalanches have become a severe issue in snow-covered areas. Accumulation and metamorphosis, as well as hydrothermal exchanges with the environment, considerably affect the stability of snow on slopes. Therefore, a hydrothermal model of snow cover and its underlying surfaces must be developed on the basis of meteorological data to predict and help manage avalanches. This study adopted the conceptual model of snow as a porous medium and quantitatively analysed its internal physical processes on the basis of the thermal exchanges amongst its components. The effects of local meteorological factors on snow structure and the redistribution of energy and mass inside the snow cover in the Tianshan Mountains were simulated. Simulation results showed that deformation as a result of overlying snow and sublimation of snow cover at the bottom is the main cause of density variation in the vertical profile of snow cover. Temperature drives water movement in snow. The low-density area of the bottom snow is the result of temperature gradient. The simulation results of the long-term snow internal mass distribution obtained by the method established in this study are highly consistent with the actual observed trend of variation. Such consistency indicates an accurate simulation of the physical characteristics of snow cover in small and microscale metamorphism in the Tianshan Mountains during the stable period. |
关键词 | WETTING FRONT ADVANCEWESTERN TIANSHANCOVER MODELRUNOFFTEMPERATUREMELTWATERENERGYREGIONSFLOWMELT |
英文关键词 | Snow; Porous medium; Heat and mass transfer; Phase change; Thermo-hydro-mechanical (THM) coupling; Numerical modelling |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology |
WOS类目 | Environmental Sciences |
WOS记录号 | WOS:000606417600002 |
来源期刊 | JOURNAL OF MOUNTAIN SCIENCE |
来源机构 | 中国科学院西北生态环境资源研究院 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/253841 |
作者单位 | [Ren Yan-run; Zhang Yao-nan; Shen Yong-ping; Zhao Guo-hui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Ren Yan-run; Hao Jian-sheng] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Zhang Yao-nan; Shen Yong-ping; Zhao Guo-hui] Natl Cryosphere Desert Data Ctr, Lanzhou 730000, Peoples R China; [Hao Jian-sheng] Chinese Acad Sci, Ili Stn Watershed Ecosyst Res, Urumqi 830011, Peoples R China; [Li Cong] Lanzhou Univ Technol, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Ren Yan-run,Zhang Yao-nan,Hao Jian-sheng,et al. Numerical simulation of seasonal snow in Tianshan Mountains[J]. 中国科学院西北生态环境资源研究院,2021,18(2). |
APA | Ren Yan-run,Zhang Yao-nan,Hao Jian-sheng,Shen Yong-ping,Zhao Guo-hui,&Li Cong.(2021).Numerical simulation of seasonal snow in Tianshan Mountains.JOURNAL OF MOUNTAIN SCIENCE,18(2). |
MLA | Ren Yan-run,et al."Numerical simulation of seasonal snow in Tianshan Mountains".JOURNAL OF MOUNTAIN SCIENCE 18.2(2021). |
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