Bifurcation of Pacific North Equatorial Current at the surface

doi:10.1007/s11430-009-0020-4

IOCAS-IR > 海洋环流与波动重点实验室

	Bifurcation of Pacific North Equatorial Current at the surface
	Wang QingYe 1; Cao RuiXue 1; Zhang ShuWen 1; Hu DunXin 2
	2009-02-01
发表期刊	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN	1006-9313
卷号	52 期号:2 页码:227-231
文章类型	Article
摘要	The grid altimetry data between 1993 and 2006 near the Philippines were analyzed by the method of Empirical Orthogonal Function (EOF) to study the variation of bifurcation of the North Equatorial Current at the surface of the Pacific. The relatively short-term signals with periods of about 6 months, 4 months, 3 months and 2 months are found besides seasonal and interannual variations mentioned in previous studies. Local wind stress curl plays an important role in controlling variation of bifurcation latitude except in the interannual timescale. The bifurcation latitude is about 13.3A degrees N in annual mean state and it lies at the northernmost position (14.0A degrees N) in January, at the southernmost position (12.5A degrees N) in July. The amplitude of variation of bifurcation latitude in a year is 1.5A degrees, which can mainly be explained as the contributions of the signals with periods of about 1 year (1.2A degrees) and 0.5 year (0.3A degrees).; The grid altimetry data between 1993 and 2006 near the Philippines were analyzed by the method of Empirical Orthogonal Function (EOF) to study the variation of bifurcation of the North Equatorial Current at the surface of the Pacific. The relatively short-term signals with periods of about 6 months, 4 months, 3 months and 2 months are found besides seasonal and interannual variations mentioned in previous studies. Local wind stress curl plays an important role in controlling variation of bifurcation latitude except in the interannual timescale. The bifurcation latitude is about 13.3A degrees N in annual mean state and it lies at the northernmost position (14.0A degrees N) in January, at the southernmost position (12.5A degrees N) in July. The amplitude of variation of bifurcation latitude in a year is 1.5A degrees, which can mainly be explained as the contributions of the signals with periods of about 1 year (1.2A degrees) and 0.5 year (0.3A degrees).
关键词	Bifurcation North Equatorial Current Variation Empirical Orthogonal Function
学科领域	Geosciences, Multidisciplinary
DOI	10.1007/s11430-009-0020-4
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000262684300008
引用统计	被引频次：7[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/337002/2398
专题	海洋环流与波动重点实验室
作者单位	1.Guangdong Ocean Univ, S China Sea Environm Inst, Zhanjiang 524088, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang QingYe,Cao RuiXue,Zhang ShuWen,et al. Bifurcation of Pacific North Equatorial Current at the surface[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2009,52(2):227-231.
APA	Wang QingYe,Cao RuiXue,Zhang ShuWen,&Hu DunXin.(2009).Bifurcation of Pacific North Equatorial Current at the surface.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,52(2),227-231.
MLA	Wang QingYe,et al."Bifurcation of Pacific North Equatorial Current at the surface".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 52.2(2009):227-231.

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