气候变化领域集成服务门户(CCPortal): Spatial and temporal variability of marine-origin matter along a transect from Zhongshan Station to Dome A, Eastern Antarctica

CCPortal

DOI	10.1016/j.jes.2015.07.011
	Spatial and temporal variability of marine-origin matter along a transect from Zhongshan Station to Dome A, Eastern Antarctica
	Li, Chuanjin; Xiao, Cunde; Shi, Guitao; Ding, Minghu; Qin, Dahe; Ren, Jiawen
发表日期	2016
ISSN	1001-0742
起始页码	190
结束页码	202
卷号	46
英文摘要	The spatiotemporal distribution pattern of marine-origin matter on the Antarctica ice sheet was used to study variations in the source regions, transport mechanisms and post depositional influences. We present data on sea salt ions, sulfur components and stable isotopes from surface and snow pit samples collected along the transect route from Zhongshan Station to Dome A during the austral summer in 2012-2013. A general decreasing trend in the accumulation, sea salt ions and sulfur components occurred with increasing distance from the coast and increasing elevation. However, different sources of the marine components, transport pathways and post-depositional influences were responsible for their different spatial distribution patterns. The marine ions in the coastal snow pit varied seasonally, with higher sea salt ion concentrations in the winter and lower concentrations in the summer; the opposite pattern was found for the sulfur compounds. The sea ice area surrounding Antarctica was the main source region for the deposited sea salt and the open sea water for the sulfur compounds. No significant trends in the marine-origin components were detected during the past 3 decades. Several periods of elevated deposition of sea salt ions were associated with lower temperatures (based on 6D and 8180) or intensified wind fields. In comparison to the sea salt ions, the sulfur concentrations exhibited the opposite distribution patterns and were associated with changes in the surrounding sea ice extent. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
英文关键词	Marine-origin matter; Transect; Dome A; Eastern Antarctica
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
来源期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158547
作者单位	Xiao, CD (corresponding author), Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China.; Xiao, CD (corresponding author), Chinese Acad Meteorol Sci, Climate Syst Inst, Beijing 100081, Peoples R China.
推荐引用方式 GB/T 7714	Li, Chuanjin,Xiao, Cunde,Shi, Guitao,et al. Spatial and temporal variability of marine-origin matter along a transect from Zhongshan Station to Dome A, Eastern Antarctica[J],2016,46.
APA	Li, Chuanjin,Xiao, Cunde,Shi, Guitao,Ding, Minghu,Qin, Dahe,&Ren, Jiawen.(2016).Spatial and temporal variability of marine-origin matter along a transect from Zhongshan Station to Dome A, Eastern Antarctica.JOURNAL OF ENVIRONMENTAL SCIENCES,46.
MLA	Li, Chuanjin,et al."Spatial and temporal variability of marine-origin matter along a transect from Zhongshan Station to Dome A, Eastern Antarctica".JOURNAL OF ENVIRONMENTAL SCIENCES 46(2016).