气候变化领域集成服务门户(CCPortal): Signals of antarctic circum-polar wave over the southern Indian ocean as recorded in an Antarctica ice core

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DOI	10.1360/03wd0608
	Signals of antarctic circum-polar wave over the southern Indian ocean as recorded in an Antarctica ice core
	Xiao, CD; Cheng, YJ; Ren, JW; Lu, LH; Li, ZQ; Qin, DH; Zhou, XJ
发表日期	2005
ISSN	1001-6538
起始页码	347
结束页码	355
卷号	50 期号:4
英文摘要	Oxygen stable isotopic and ionic records, covering a period of 1745-1996, are recovered in DT001 ice core drilled in Princess Elizabeth Land, East Antarctica. Using empirical orthogonal function (EOF) analysis of the annually resolved glaciochemical time series, we find the first EOF (EOF1) represents sea-salt aerosols and is the proxy of sea level pressure (SLP) over a quasi-stationary low in the Southern Indian Ocean (SIO). delta(18)O represents the sea surface temperature (SST) of the same ocean area. In the past two decades, four climatic waves as represented by SLP and SST proxies are found in the DT001 ice core, which in coincident with four Antarctic Circum-polar Waves (ACW) as revealed by NCEP/NCAR reanalysis. The phase difference between SST and SLP in the ice core is also coincident with that in ACW. Both ice-core record and reanalysis suggest that there were no signals of ACW during 1958-1980, none during the overall recording period between 1745-1996, as there is no regular phase difference between SST and SLP. The ACW signal after early 1980s is probably attributable to the climate shift occurring over Antarctic Peninsula-Drake Passage region.
英文关键词	Princess Elizabeth Land; ice core; Antarctic Circumpolar Wave; Southern Indian Ocean; climate change
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
来源期刊	CHINESE SCIENCE BULLETIN
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158706
作者单位	Xiao, CD (corresponding author), Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China.
推荐引用方式 GB/T 7714	Xiao, CD,Cheng, YJ,Ren, JW,et al. Signals of antarctic circum-polar wave over the southern Indian ocean as recorded in an Antarctica ice core[J],2005,50(4).
APA	Xiao, CD.,Cheng, YJ.,Ren, JW.,Lu, LH.,Li, ZQ.,...&Zhou, XJ.(2005).Signals of antarctic circum-polar wave over the southern Indian ocean as recorded in an Antarctica ice core.CHINESE SCIENCE BULLETIN,50(4).
MLA	Xiao, CD,et al."Signals of antarctic circum-polar wave over the southern Indian ocean as recorded in an Antarctica ice core".CHINESE SCIENCE BULLETIN 50.4(2005).