Low-frequency spiciness variations in the tropical Pacific Ocean observed during 2003-2012

doi:10.1029/2012GL053971

IOCAS-IR > 海洋环流与波动重点实验室

	Low-frequency spiciness variations in the tropical Pacific Ocean observed during 2003-2012
	Li, Yuanlong; Wang, Fan; Sun, Yan; Wang, F (reprint author), Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
	2012-12-01
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	39 页码:L23601
文章类型	Article
摘要	Large-scale spiciness variations in the Pacific Ocean during 2003-2012 are well recorded in the Argo-based Grid Point Value of the Monthly Objective Analysis (MOAA GPV) dataset. Pronounced interannual spiciness anomalies between 25.0-25.5 sigma(theta) are detected near the outcropping areas in the eastern subtropics of both hemispheres. Differing from previous model results, the observed subtropical variations are more powerful in the North Pacific. While these subtropical signals diffuse quickly as propagating equatorward, large-magnitude anomalies are generated in the off-equatorial tropics (10 degrees-14 degrees N and 3 degrees-7 degrees S) under intensive current perturbation and further communicated to the central equatorial Pacific via interior-ocean meridional flow. Although along-equator signal propagation to the eastern Pacific upwelling zones is not discernable, appearance of spiciness anomalies leads to low-frequency thermal variations in the central equatorial Pacific, which may play a role in the increasingly frequent occurrences of ENSO-Modoki events. Citation: Li, Y., F. Wang, and Y. Sun (2012), Low-frequency spiciness variations in the tropical Pacific Ocean observed during 2003-2012, Geophys. Res. Lett., 39, L23601, doi:10.1029/2012GL053971.
关键词	El-nino Temperature Anomalies Climate-change South-pacific Variability Circulation Generation Mechanism Mode
学科领域	Geosciences, Multidisciplinary
DOI	10.1029/2012GL053971
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000311840600004
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/12169
专题	海洋环流与波动重点实验室
通讯作者	Wang, F (reprint author), Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
作者单位	Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China
第一作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Li, Yuanlong,Wang, Fan,Sun, Yan,et al. Low-frequency spiciness variations in the tropical Pacific Ocean observed during 2003-2012[J]. GEOPHYSICAL RESEARCH LETTERS,2012,39:L23601.
APA	Li, Yuanlong,Wang, Fan,Sun, Yan,&Wang, F .(2012).Low-frequency spiciness variations in the tropical Pacific Ocean observed during 2003-2012.GEOPHYSICAL RESEARCH LETTERS,39,L23601.
MLA	Li, Yuanlong,et al."Low-frequency spiciness variations in the tropical Pacific Ocean observed during 2003-2012".GEOPHYSICAL RESEARCH LETTERS 39(2012):L23601.

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