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Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet
Tong, K (Tong, Kai)1; Su, FG (Su, Fengge)1,2; Xu, BQ (Xu, Baiqing)1,2; Su, FG
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
2016
Volume121Issue:19Pages:11158-11173
DOI10.1002/2016JD025424
AbstractLake 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.
Subject Area自然地理学
WOS IDWOS:000386976100001
Language英语
Indexed BySCI
KeywordXiao-dongkemadi Glacier Inland Lake Nam Co Climate-change Elevation Changes Routing Model Water Storage Mass-balance Vic-2l Model Plateau
Cooperation Status国内
Department环境
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7542
Collection图书馆
Corresponding AuthorSu, FG
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Tong, K ,Su, FG ,Xu, BQ ,et al. Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2016,121(19):11158-11173.
APA Tong, K ,Su, FG ,Xu, BQ ,&Su, FG.(2016).Quantifying the contribution of glacier meltwater in the expansion of the largest lake in Tibet.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,121(19),11158-11173.
MLA Tong, K ,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):11158-11173.
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