气候变化领域集成服务门户(CCPortal): Temporal variations in marine chemical concentrations in coastal areas of eastern Antarctica and associated climatic causes

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DOI	10.1016/j.quaint.2014.03.016
	Temporal variations in marine chemical concentrations in coastal areas of eastern Antarctica and associated climatic causes
	Li, Chuanjin; Qin, Xiang; Ding, Minghu; Guo, Rui; Xiao, Cunde; Hou, Shugui; Bian, Lingen; Qin, Dahe; Ren, Jiawen
发表日期	2014
ISSN	1040-6182
起始页码	16
结束页码	25
卷号	352
英文摘要	Snow pit (and a firn core) samples obtained from coastal areas in the eastern Lambert basin of eastern Antarctica enabled us to investigate the temporal variations in soluble marine ion concentrations and the possible mechanisms influencing their variations. The concentrations of seasonal sea salt ions (Na+, Cl- and Mg2+) at the coastal site (LH406) were maximal in the spring and minimal in the summer; broad maximal values also occurred in the winter and minimal values occurred in the summer in the interior site (ZG050). The sea ice extent (SIE) in the Indian Ocean sector of eastern Antarctica followed similar temporal distribution patterns. Two sulfur compounds (SO42- and MSA) experienced seasonal variations similar to those observed for sea salt ions at the LH406 site. However, distinct variations were reported at the ZG050 site. The variations in nssSO(4)(2-) levels in the ZG050 snow pit that occurred over a 14-year period were positively correlated with variations in SIE. However, this relationship was different from that at the western Lambert basin. The change in direction of the supplementary prevailing wind during 1994-1995 produced a significant change in the concentrations of marine ions. A change in the source region may be the primary cause of this difference. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
英文关键词	Sea salt ions; Sulfate; Sea ice extent; Eastern Antarctica
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
来源期刊	QUATERNARY INTERNATIONAL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158581
作者单位	Li, CJ (corresponding author), Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, 320 Donggang West Rd, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Li, Chuanjin,Qin, Xiang,Ding, Minghu,et al. Temporal variations in marine chemical concentrations in coastal areas of eastern Antarctica and associated climatic causes[J],2014,352.
APA	Li, Chuanjin.,Qin, Xiang.,Ding, Minghu.,Guo, Rui.,Xiao, Cunde.,...&Ren, Jiawen.(2014).Temporal variations in marine chemical concentrations in coastal areas of eastern Antarctica and associated climatic causes.QUATERNARY INTERNATIONAL,352.
MLA	Li, Chuanjin,et al."Temporal variations in marine chemical concentrations in coastal areas of eastern Antarctica and associated climatic causes".QUATERNARY INTERNATIONAL 352(2014).