气候变化领域集成服务门户(CCPortal): Estimating the contribution of glacial meltwater to Ranwu Lake, a proglacial lake in SE Tibet, using observation data and stable isotopic analyses

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DOI	10.1007/s12665-017-6544-6
	Estimating the contribution of glacial meltwater to Ranwu Lake, a proglacial lake in SE Tibet, using observation data and stable isotopic analyses
	Ju, Jianting; Zhu, Liping; Wang, Junbo; Cui, Yingying; Huang, Lei; Yang, Ruimin; Ma, Qingfeng; Luo, Lun; Wang, Yongjie
通讯作者	Ju, JT (通讯作者)
发表日期	2017
ISSN	1866-6280
EISSN	1866-6299
卷号	76 期号:5
英文摘要	It is important for both current monitoring and paleoenvironmental research conducted on proglacial lakes and their adjacent glaciers to clarify the hydrological processes operating on these lakes. However, in remote regions with limited accessibility it may be difficult to study hydrological processes by direct monitoring. In this study, we use measurements of stable isotopic compositions to trace the multiple water sources contributing to Ranwu Lake, a proglacial lake in south-eastern Tibet. Using stable isotopic data from precipitation, inflowing rivers and the lake water, a water and isotope mass balance modelling method was used to calculate the ratio of evaporation to input. Subsequently, using hydrological and climatic data for the outflow, the largest inflow and precipitation, other hydrological elements of the lake water balance were also calculated. The results demonstrate that the ratio of evaporation to inflow is as low as 0.009, the lowest value observed for the Tibetan Plateau, indicating that Ranwu Lake is a through-flow lake with a very short retention time. Glacial meltwater accounts for at least 55% of total runoff, the highest value observed for the Tibetan Plateau, indicating that the sediments of Ranwu Lake may have considerable potential for reconstructing variations in the activity of the local glaciers. Finally, we note that it may be inappropriate in this glacier-fed lake to use the intersection of the local meteoric water line with the lake water line for determining the isotopic composition of the input water, and this possibility must be carefully considered when stable isotope mass modelling is used in proglacial lakes.
关键词	WATER-BALANCE MASS-BALANCE PLATEAU HOLOCENE BASIN FLUCTUATIONS EVAPORATION MOUNTAINS PRECIPITATION TEMPERATURE
英文关键词	Glacier meltwater; Isotope mass balance; Lake water balance; Proglacial lake; Tibetan Plateau
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000396208400041
来源期刊	ENVIRONMENTAL EARTH SCIENCES
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/258890
推荐引用方式 GB/T 7714	Ju, Jianting,Zhu, Liping,Wang, Junbo,et al. Estimating the contribution of glacial meltwater to Ranwu Lake, a proglacial lake in SE Tibet, using observation data and stable isotopic analyses[J]. 中国科学院青藏高原研究所,2017,76(5).
APA	Ju, Jianting.,Zhu, Liping.,Wang, Junbo.,Cui, Yingying.,Huang, Lei.,...&Wang, Yongjie.(2017).Estimating the contribution of glacial meltwater to Ranwu Lake, a proglacial lake in SE Tibet, using observation data and stable isotopic analyses.ENVIRONMENTAL EARTH SCIENCES,76(5).
MLA	Ju, Jianting,et al."Estimating the contribution of glacial meltwater to Ranwu Lake, a proglacial lake in SE Tibet, using observation data and stable isotopic analyses".ENVIRONMENTAL EARTH SCIENCES 76.5(2017).