Seasonal variability of the North Equatorial Current transport in the western Pacific Ocean

doi:10.1007/s00343-014-3052-3

IOCAS-IR > 海洋环流与波动重点实验室

	Seasonal variability of the North Equatorial Current transport in the western Pacific Ocean
	Yan Qingxun 1,2,3; Hu Dunxin 1,2; Zhai Fangguo 1,2,4; Hu, DX (reprint author), Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China.
	2014
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号	32 期号:1 页码:223-237
文章类型	Article
摘要	Seasonal variability of the North Equatorial Current (NEC) transport in the western Pacific Ocean is investigated with ECMWF Ocean Analysis/Reanalysis System 3 (ORA-S3). The result shows that NEC transport (NT) across different longitudes in the research area shows a similar double-peak structure, with two maxima (in summer and winter), and two minima (in spring and autumn). This kind of structure can also be found in NEC geostrophic transport (NGT), but in a different magnitude and phase. These differences are attributable to Ekman transport induced by the local meridional wind and transport caused by nonzero velocity at the reference level, which is assumed to be zero in the NGT calculation. In the present work, a linear vorticity equation governing a 1.5-layer reduced gravity model is adopted to examine the dynamics of the seasonal variability of NGT. It is found that the annual cycle of NGT is mainly controlled by Ekman pumping induced by local wind, and westward-propagating Rossby waves induced by remote wind. Further research demonstrates that the maximum in winter and minimum in spring are mostly attributed to wind east of the dateline, whilst the maximum in summer and minimum in autumn are largely attributed to that west of the dateline.
关键词	North Equatorial Current (Nec) Transport Seasonal Variability Linear Vorticity Equation
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-014-3052-3
收录类别	SCI
语种	英语
WOS记录号	WOS:000332003500024
引用统计	被引频次：13[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/337002/23965
专题	海洋环流与波动重点实验室
通讯作者	Hu, DX (reprint author), Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China.
作者单位	1.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.State Ocean Adm, Inst Oceanog 3, Xiamen 361005, Peoples R China
第一作者单位	海洋环流与波动重点实验室; 中国科学院海洋研究所
推荐引用方式 GB/T 7714	Yan Qingxun,Hu Dunxin,Zhai Fangguo,et al. Seasonal variability of the North Equatorial Current transport in the western Pacific Ocean[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2014,32(1):223-237.
APA	Yan Qingxun,Hu Dunxin,Zhai Fangguo,&Hu, DX .(2014).Seasonal variability of the North Equatorial Current transport in the western Pacific Ocean.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,32(1),223-237.
MLA	Yan Qingxun,et al."Seasonal variability of the North Equatorial Current transport in the western Pacific Ocean".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 32.1(2014):223-237.

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