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	Changes on ionic concentrations and delta O-18 in the snowpack of Zhadang glacier, Nyainqentanglha mountain, southern Tibetan Plateau
	Kang Shichang; Huang Jie; Xu Yanwei
发表日期	2008
ISSN	0260-3055
卷号	49
英文摘要	To investigate the effects of depositional and post-depositional processes on chemical records in the snowpack, seven monthly snow pits were sampled at the same site on the pass of Zhadang (ZD) glacier (30 degrees 28.079'N, 90 degrees 39.032'E; 5800 m a.s.l.), Nyainqentanglha mountain, southern Tibetan Plateau, between April and October 2006. Meteorological data from an automatic weather station at the sampling site showed that the annual mean air temperature was -5.6 degrees C on the pass and that monthly air temperature was above 0 degrees C from June to August, indicating that snowmelt could occur in this high-elevation region during the summer. An analysis of delta O-18 and major-ion variability in snow pits suggests that glaciochemical records were influenced by both meltwater percolation in mid-summer (July and August) and seasonal deposition. Less negative delta O-18 values and high concentrations of major ions occurred during the spring. The trends of delta O-18 variations in the ZD snow pits were consistent with those in precipitation sampled at the nearby Nam Co station for all months except for July and August, suggesting that climate signals are well preserved in the snow-pit delta O-18 records during the non-summer months. However, these climate signals were destroyed by strong percolation of meltwater during mid-summer.
学科领域	Geology
语种	英语
WOS研究方向	Geosciences, Multidisciplinary
来源期刊	ANNALS OF GLACIOLOGY, VOL 49, 2008
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111517
作者单位	Chinese Acad Sci, Inst Tibetan Plateau Res, Nam Co Stn Multisphere Observat & Res, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Kang Shichang,Huang Jie,Xu Yanwei. Changes on ionic concentrations and delta O-18 in the snowpack of Zhadang glacier, Nyainqentanglha mountain, southern Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2008,49.
APA	Kang Shichang,Huang Jie,&Xu Yanwei.(2008).Changes on ionic concentrations and delta O-18 in the snowpack of Zhadang glacier, Nyainqentanglha mountain, southern Tibetan Plateau.ANNALS OF GLACIOLOGY, VOL 49, 2008,49.
MLA	Kang Shichang,et al."Changes on ionic concentrations and delta O-18 in the snowpack of Zhadang glacier, Nyainqentanglha mountain, southern Tibetan Plateau".ANNALS OF GLACIOLOGY, VOL 49, 2008 49(2008).