气候变化领域集成服务门户(CCPortal): Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet

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DOI	10.1002/2016JD025424
	Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet
	Tong, Kai; Su, Fengge; Xu, Baiqing
通讯作者	Su, FG (通讯作者)
发表日期	2016
ISSN	2169-897X
EISSN	2169-8996
起始页码	11158
结束页码	11173
卷号	121 期号:19
英文摘要	Lake Siling Co is currently the largest endorheic lake in Tibet, and the lake surface area has expanded by about 40% since the 1970s, with a remarkable acceleration after 1999. In this study, a hydrologic modeling framework was established by linking the Variable Infiltration Capacity (VIC) land surface hydrologic model with the degree-day glacier-melt model over the Lake Siling Co basin, with an aim to quantify the contribution of each runoff component to changes in the lake storage. We found that glacier melt contributed to less than 10% of the total water input to the lake during 1979-2013, while precipitation-induced runoff in nonglacierized area was responsible for about 67-75%. The mean annual water input to the lake increased by 2.15x10(9)m(3)yr(-1) in 2000-2013 relative to that in 1979-1999. The amount of precipitation over the lake surface, precipitation-induced runoff, and glacier-melt runoff accounted for 13%, 82%, and 5% of this total increase, respectively, suggesting that the substantial expansion of Siling Co in the 2000s was mostly due to the increase in precipitation-induced runoff. When modeling lake level changes during 1979-2013, we found that the water level rose by 14.1m when glacier melt was included and by only 10.5m, a reduction of about one fourth, when glacier melt was removed. It is concluded that glacier melt played an important role in controlling the water level of Siling Co, although it only contributed less than 10% of water input to the lake during 1979-2013.
关键词	XIAO-DONGKEMADI GLACIER INLAND LAKE NAM CO ELEVATION CHANGES CLIMATE-CHANGE WATER STORAGE MASS-BALANCE VIC-2L MODEL PLATEAU IMPACT
英文关键词	Lake Siling Co; lake expansion; lake water balance; glacier melt; hydrologic modeling
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000386976100001
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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/258628
推荐引用方式 GB/T 7714	Tong, Kai,Su, Fengge,Xu, Baiqing. Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet[J]. 中国科学院青藏高原研究所,2016,121(19).
APA	Tong, Kai,Su, Fengge,&Xu, Baiqing.(2016).Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,121(19).
MLA	Tong, Kai,et al."Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 121.19(2016).