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DOI	10.1016/j.accre.2021.01.005
	Impacts of landscape and climatic factors on snow cover in the Altai Mountains, China
	Zhong Xin-Yue; Zhang Tingjun; Su Hang; Xiao Xiong-Xin; Wang Shu-Fa; Hu Yuan-Tao; Wang Hui-Juan; Zheng Lei; Zhang Wei; Xu Min; Wang Jian
通讯作者	Zhang, TJ (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1674-9278
起始页码	95
结束页码	107
卷号	12 期号:1
英文摘要	Snow properties and their changes are crucial to better understanding of hydrological processes, soil thermal regimes, and surface energy balances. Reliable data and information on snow depth and snow water equivalent (SWE) are also crucial for water resource assessments and socio-economic development at local and regional scales. However, these data are extremely limited and unreliable in northern Xinjiang, China. This study thus aims to investigate spatial variations of snow depth, SWE, and snow density based on winter snowfield surveys during 2015 through 2017 in the Altai Mountains, northwestern China. The results indicated that snow depth (25-114 cm) and SWE (40-290 mm) were greater in the alpine Kanas-Hemu region, and shallow snow accumulated (9-42 cm for snow depth, 26-106 mm for SWE) on the piedmont sloping plain. While there was no remarkable regional difference in the distribution of snow density. Snow property distributions were strongly controlled by topography and vegetation. Elevation and latitude were the most important factors affecting snow depth and SWE, while snow density was strongly affected by longitude across the Altai Mountains in China. The influence of topography on snow property distributions was spatially heterogenous. Mean snow depth increased from 13.7 to 31.2 cm and SWE from 28.5 to 79.9 mm, respectively, with elevation increased from 400 to 1000 m a.s.l. on the piedmont sloping plain. Snow depth decreased to about 15.1 cm and SWE to about 28.5 mm from 1000 to 1800 m a.s.l., then again increased to about 98.1 cm and 271.7 mm on peaks (2000 m a.s.l.) in the alpine Kanas-Hemu. Leeward slopes were easier to accumulate snow cover, especially on north-, east-, and southeast-facing slopes. Canopy interception was also the cause of the difference in snow distribution. Snow depth, SWE, and snow density in forests were reduced by 8%-53%, 2%-67% and -4% to +48%, respectively, compared with surrounding open areas. Especially when snow depth was less than 40 cm, snow depth and SWE differences in forests were more exaggerated. This study provides a basic data set of spatial distributions and variations of snow depth, SWE and snow density in the Altai Mountains, which can be used as an input parameter in climate or hydrological models. These first-hand observations will help to better understand the relationship between snow, topography and climate in mountainous regions across northern China and other high-mountain Asian regions.
关键词	ALPINE CATCHMENTS ACCUMULATION DEPENDENCY DEPTH MODEL MELT
英文关键词	Altai Mountains; Snow cover; Topography; Vegetation; Climate factor
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000629700700009
来源期刊	ADVANCES IN CLIMATE CHANGE RESEARCH
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/254603
作者单位	[Zhong Xin-Yue; Wang Jian] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Remote Sensing Gansu Prov, Lanzhou 730000, Peoples R China; [Zhang Tingjun; Wang Shu-Fa] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China; [Su Hang] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China; [Xiao Xiong-Xin] Wuhan Univ, Sch Remote Sensing & Informat Engn, Wuhan 430072, Peoples R China; [Hu Yuan-Tao] Fudan Univ, Inst Atmospher Sci, Shanghai 200433, Peoples R China; [Wang Hui-Juan] Gansu Tianshui Power Supply Co, Tianshui 741000, Peoples R China; [Zheng Lei] Sun Yat Sen Univ, Sch Geospatial Engn & Sci, Guangzhou 510275, Peoples R China; [Zhang Wei; Xu Min] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhong Xin-Yue,Zhang Tingjun,Su Hang,et al. Impacts of landscape and climatic factors on snow cover in the Altai Mountains, China[J]. 中国科学院西北生态环境资源研究院,2021,12(1).
APA	Zhong Xin-Yue.,Zhang Tingjun.,Su Hang.,Xiao Xiong-Xin.,Wang Shu-Fa.,...&Wang Jian.(2021).Impacts of landscape and climatic factors on snow cover in the Altai Mountains, China.ADVANCES IN CLIMATE CHANGE RESEARCH,12(1).
MLA	Zhong Xin-Yue,et al."Impacts of landscape and climatic factors on snow cover in the Altai Mountains, China".ADVANCES IN CLIMATE CHANGE RESEARCH 12.1(2021).