气候变化领域集成服务门户(CCPortal): Accelerated glacier mass loss in the largest river and lake source regions of the Tibetan Plateau and its links with local water balance over 1976-2017

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DOI	10.1017/jog.2021.9
	Accelerated glacier mass loss in the largest river and lake source regions of the Tibetan Plateau and its links with local water balance over 1976-2017
	Chen, Wenfeng; Yao, Tandong; Zhang, Guoqing; Li, Shenghai; Zheng, Guoxiong
通讯作者	Chen, WF (通讯作者)
发表日期	2021
ISSN	0022-1430
EISSN	1727-5652
起始页码	577
结束页码	591
卷号	67 期号:264
英文摘要	Variations in glacier meltwater in the source regions of the Tibetan Plateau's (TP) largest lake (Selin Co) and China's longest river (Yangtze River) regulate the local and downstream water balance under the warming climate. However, the magnitude of their variations over the past four decades is still unknown. Here, we examine long-term changes in glacier mass balance over 1976-2017 using KH-9 and CoSSC-TanDEM-X data. We find that the mean rate of glacier mass loss (GML) has accelerated from -0.21 +/- 0.11 m a(-1) over 1976-2000, to -0.28 +/- 0.14 m a(-1) over 2000-11, and subsequently to -0.48 +/- 0.10 m a(-1) over 2011-17. Changes in temperature and precipitation are the major causes of GML. Over 1976-2017, the contribution of decadal GML to Tuotuohe sub-basin runoff ranges from 4.3 to 8.0%, while its contribution to increased lake volume change in Selin Co and Chibzhang Co-Dorsoidong Co ranges from 3.5 to 16.3% and 19.2 to 21.4%, respectively. The GML of source regions made relatively small contributions to river runoff and lake supply, but plays a vital role when precipitation decreases. The quantitative evaluation of the water balance for the sources of great rivers and lakes over the TP is therefore important for water resource management and hydrological cycle studies.
关键词	APERTURE RADAR SIGNALS SURGE-TYPE GLACIERS GELADANDONG MOUNTAIN PENETRATION DEPTH CLIMATE-CHANGE HEXAGON KH-9 ICE CORE VOLUME RUNOFF DYNAMICS
英文关键词	Geladandong; glacier mass balance; Selin Co; Tibetan Plateau; water balance; Yangtze River
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000670030500001
来源期刊	JOURNAL OF GLACIOLOGY
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/260230
推荐引用方式 GB/T 7714	Chen, Wenfeng,Yao, Tandong,Zhang, Guoqing,et al. Accelerated glacier mass loss in the largest river and lake source regions of the Tibetan Plateau and its links with local water balance over 1976-2017[J]. 中国科学院青藏高原研究所,2021,67(264).
APA	Chen, Wenfeng,Yao, Tandong,Zhang, Guoqing,Li, Shenghai,&Zheng, Guoxiong.(2021).Accelerated glacier mass loss in the largest river and lake source regions of the Tibetan Plateau and its links with local water balance over 1976-2017.JOURNAL OF GLACIOLOGY,67(264).
MLA	Chen, Wenfeng,et al."Accelerated glacier mass loss in the largest river and lake source regions of the Tibetan Plateau and its links with local water balance over 1976-2017".JOURNAL OF GLACIOLOGY 67.264(2021).