气候变化领域集成服务门户(CCPortal): Evaluating the Water Level Variation of a High-Altitude Lake in Response to Environmental Changes on the Southern Tibetan Plateau

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DOI	10.1061/(ASCE)HE.1943-5584.0002050
	Evaluating the Water Level Variation of a High-Altitude Lake in Response to Environmental Changes on the Southern Tibetan Plateau
	Chen, Xuegao; Yu, Zhongbo; Huang, Qinghan; Yi, Peng; Shi, Xiaonan; Aldahan, Ala; Xiong, Ling; Wan, Chengwei; Chen, Peng
通讯作者	Yu, ZB (通讯作者)
发表日期	2021
ISSN	1084-0699
EISSN	1943-5584
卷号	26 期号:5
英文摘要	Lakes are sensitive to environmental changes, and an example of this change is the decreased water level in the Yamzho Yumco Lake (YYL, in southern Tibetan Plateau), which is opposite of the reported expansion in most other lakes of the Tibetan Plateau. In this study, we report a high-resolution dataset of daily monitored water levels from 1974 to 2010 in the YYL, which was used to elucidate annual and seasonal variations of the lake water level. These data are coupled to the stable isotope signals in the lake water and to a water balance model to provide an overall picture of factors and processes affecting the lake. The data revealed an annual average rate of 0.12 m per year lowering of the lake water level, but there was a relative increase in the summer and autumn seasons. It was found that a large amount of precipitation and low evaporation were primary reasons for increasing periods of the lake water level. The extensive glacier melting process driven by a sharp rise in temperature is another key factor for the increasing period between 1997 and 2004. The annual general water level decline before 1996 is attributed to the slow glacier melting rate and reduced precipitation, while a drastic decline of the water level after 2005 could be related to water leakage at the lake bottom, enhanced by a thawing of the permafrost. This process is driven by increasing soil temperatures and human activity. Finding out the causes of the YYL shrinkage trend provides vital implications for the management of water resources in the Tibetan plateau cold regions.
关键词	CLIMATE-CHANGE YANGTZE-RIVER HYDROLOGICAL EXTREMES QUANTITATIVE-ANALYSIS STABLE-ISOTOPES STORAGE CHANGES CLOSED LAKES BASIN GLACIER CHINA
英文关键词	Lake water balance simulation; Stable isotope analysis; Climatic feature; Water level fluctuation; Hydrological response; Tibetan Plateau
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS类目	Engineering, Civil ; Environmental Sciences ; Water Resources
WOS记录号	WOS:000640542300004
来源期刊	JOURNAL OF HYDROLOGIC ENGINEERING
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260298
推荐引用方式 GB/T 7714	Chen, Xuegao,Yu, Zhongbo,Huang, Qinghan,et al. Evaluating the Water Level Variation of a High-Altitude Lake in Response to Environmental Changes on the Southern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2021,26(5).
APA	Chen, Xuegao.,Yu, Zhongbo.,Huang, Qinghan.,Yi, Peng.,Shi, Xiaonan.,...&Chen, Peng.(2021).Evaluating the Water Level Variation of a High-Altitude Lake in Response to Environmental Changes on the Southern Tibetan Plateau.JOURNAL OF HYDROLOGIC ENGINEERING,26(5).
MLA	Chen, Xuegao,et al."Evaluating the Water Level Variation of a High-Altitude Lake in Response to Environmental Changes on the Southern Tibetan Plateau".JOURNAL OF HYDROLOGIC ENGINEERING 26.5(2021).