Southern ocean SST variability and its relationship with ENSO on inter-decadal time scales

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Southern ocean SST variability and its relationship with ENSO on inter-decadal time scales
	[Yan Li ; Du Yan ; Zhang Lan] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2013
卷号	12 期号:2 页码:287-294
关键词	Southern Ocean SST ENSO subtropical dipole inter-decadal time scales
ISSN号	1672-5182
通讯作者	duyan@scsio.ac.cn
中文摘要	Empirical orthogonal function (EOF) analysis reveals a co-variability of Sea surface temperatures (SSTs) in the Southern Hemisphere (0A degrees-60A degrees S). In the South Indian and Atlantic Oceans, there is a subtropical dipole pattern slanted in the southwest-northeast direction. In the South Pacific Ocean, a meridional tripole structure emerges, whose middle pole co-varies with the dipoles in the South Indian and Atlantic Oceans and is used in this study to track subtropical Pacific variability. The South Indian and Atlantic Ocean dipoles and the subtropical Pacific variability are phase-locked in austral summer. On the inter-decadal time scales, the dipoles in the South Indian and Atlantic Oceans weaken in amplitude after 1979/1980. No such weakening is found in the subtropical South Pacific Ocean. Interestingly, despite the reduced amplitude, the correlation of the Indian Ocean and Atlantic dipoles with El Nio and Southern Oscillation (ENSO) are enhanced after 1979/1980. The same increase in correlation is found for subtropical South Pacific variability after 1979/1980. These inter-decadal modulations imply that the Southern Hemisphere participates in part of the climate shift in the late 1970s. The correlation between Southern Hemisphere SST and ENSO reduces after 2000.
学科主题	Oceanography
资助信息	This work is jointly supported by the National Basic Research Program (2012CB955603, 2010CB950302), National High Technology Research and Development Program of China (No. 2010AA012304), and the Knowledge Innovation Program of the Chinese Academy of Sciences (SQ201006 and XDA05090404).
原文出处	OCEAN UNIV CHINA
语种	英语
WOS记录号	WOS:000318300200013
公开日期	2015-01-14
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10911]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	[Yan Li,Du Yan,Zhang Lan] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China. Southern ocean SST variability and its relationship with ENSO on inter-decadal time scales[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2013,12(2):287-294.
APA	[Yan Li,Du Yan,&Zhang Lan] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China.(2013).Southern ocean SST variability and its relationship with ENSO on inter-decadal time scales.JOURNAL OF OCEAN UNIVERSITY OF CHINA,12(2),287-294.
MLA	[Yan Li,et al."Southern ocean SST variability and its relationship with ENSO on inter-decadal time scales".JOURNAL OF OCEAN UNIVERSITY OF CHINA 12.2(2013):287-294.