Numerical simulation of seasonal snow in Tianshan Mountains

doi:10.1007/s11629-020-6118-y

CORC > 兰州理工大学 > 兰州理工大学

	Numerical simulation of seasonal snow in Tianshan Mountains
	Ren Yan-run 2,4; Zhang Yao-nan 3,4; Hao Jian-sheng 1,2; Shen Yong-ping 3,4; Zhao Guo-hui 3,4; Li Cong 5
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2021-02
卷号	18 期号:2 页码:338-356
关键词	WETTING FRONT ADVANCE WESTERN TIANSHAN COVER MODEL RUNOFF TEMPERATURE MELTWATER ENERGY REGIONS FLOW MELT
ISSN号	1672-6316
DOI	10.1007/s11629-020-6118-y
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.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000606417600002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147352]
专题	兰州理工大学
作者单位	1.Chinese Acad Sci, Ili Stn Watershed Ecosyst Res, Urumqi 830011, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Natl Cryosphere Desert Data Ctr, Lanzhou 730000, Peoples R China; 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; 5.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]. JOURNAL OF MOUNTAIN SCIENCE,2021,18(2):338-356.
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),338-356.
MLA	Ren Yan-run,et al."Numerical simulation of seasonal snow in Tianshan Mountains".JOURNAL OF MOUNTAIN SCIENCE 18.2(2021):338-356.