气候变化领域集成服务门户(CCPortal): Spatiotemporal Dynamics of Snowline Altitude and Their Responses to Climate Change in the Tienshan Mountains, Central Asia, during 2001-2019

CCPortal

DOI	10.3390/su13073992
	Spatiotemporal Dynamics of Snowline Altitude and Their Responses to Climate Change in the Tienshan Mountains, Central Asia, during 2001-2019
	Deng, Gang; Tang, Zhiguang; Hu, Guojie; Wang, Jingwen; Sang, Guoqing; Li, Jia
通讯作者	Tang, ZG (通讯作者)，Hunan Univ Sci & Technol, Hunan Prov Key Lab Geoinformat Engn Surveying Map, Xiangtan 411201, Peoples R China.
发表日期	2021
EISSN	2071-1050
卷号	13 期号:7
英文摘要	Snow cover is an important water resource in arid and semi-arid regions of Central Asia, and is related to agricultural and livestock production, ecosystems, and socio-economic development. The snowline altitude (SLA) is a significant indicator for monitoring the changes in snow cover in mountainous regions under the changing climate. Here, we investigate the spatiotemporal variation of SLA in the Tienshan Mountains (TS) during 2001-2019 using Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover products on a grid-by-grid basis. The potential influence of topographic factors (slope gradient and aspect) on SLA and the correlation between SLA, temperature, precipitation, and solar radiation are also investigated. The results are as follows: (1) The annual cycle of SLA shows strong seasonal fluctuations (from about 2000 m in late December to 4100 m in early August). The SLA over the TS exhibits a large spatiotemporal heterogeneity. (2) SLA increases with a steeper slope gradient. The SLA of the northerly aspect is generally less than the southerly. (3) The SLA over the TS generally shows an increasing trend in the recent years (2001-2019). The change trend of SLA varies in different months. Except for a slight decrease in June, the SLA increased in almost all months, especially at the start of the melt season (March and April) and the end of melting season (July and August). (4) The SLA increases with increased temperature/radiation in the TS, and decreases with increased precipitation. Solar radiation is the dominant climatic factor affecting the changes of SLA in the TS. Compared with precipitation, temperature is more correlated to SLA dynamics.
关键词	GLACIER MASS-BALANCE TIANSHAN MOUNTAINS NORTHERN-HEMISPHERE COVER VARIABILITY EQUILIBRIUM-LINE MODIS ALBEDO BASIN METHODOLOGY TEMPERATURE
英文关键词	snowline; snow hydrology; high mountain; climate change; spatiotemporal dynamics
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS记录号	WOS:000638921400001
来源期刊	SUSTAINABILITY
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/254845
作者单位	[Deng, Gang; Tang, Zhiguang] Hunan Univ Sci & Technol, Hunan Prov Key Lab Geoinformat Engn Surveying Map, Xiangtan 411201, Peoples R China; [Hu, Guojie] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Wang, Jingwen; Sang, Guoqing; Li, Jia] Hunan Univ Sci & Technol, Natl Local Joint Engn Lab Geospatial Informat Tec, Xiangtan 411201, Peoples R China; [Wang, Jingwen; Sang, Guoqing; Li, Jia] Hunan Univ Sci & Technol, Sch Resource Environm & Safety Engn, Xiangtan 411201, Peoples R China
推荐引用方式 GB/T 7714	Deng, Gang,Tang, Zhiguang,Hu, Guojie,et al. Spatiotemporal Dynamics of Snowline Altitude and Their Responses to Climate Change in the Tienshan Mountains, Central Asia, during 2001-2019[J]. 中国科学院西北生态环境资源研究院,2021,13(7).
APA	Deng, Gang,Tang, Zhiguang,Hu, Guojie,Wang, Jingwen,Sang, Guoqing,&Li, Jia.(2021).Spatiotemporal Dynamics of Snowline Altitude and Their Responses to Climate Change in the Tienshan Mountains, Central Asia, during 2001-2019.SUSTAINABILITY,13(7).
MLA	Deng, Gang,et al."Spatiotemporal Dynamics of Snowline Altitude and Their Responses to Climate Change in the Tienshan Mountains, Central Asia, during 2001-2019".SUSTAINABILITY 13.7(2021).