Geostrophic meridional transport in tropical Northwest Pacific based on Argo profiles

doi:10.1007/s00343-013-2169-0

IOCAS-IR > 海洋环流与波动重点实验室

	Geostrophic meridional transport in tropical Northwest Pacific based on Argo profiles
	Zhang Zhichun 1,2,3; Yuan Dongliang1,2 ; Chu, Peter C.4; Yuan, DL
	2013-05-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	31 期号:3 页码:656-664
文章类型	Article
摘要	Absolute geostrophic currents in the North Pacific Ocean were calculated using P-vector method from newly gridded Argo profiling float data collected during 2004-2009. The meridional volume transport of geostrophic currents differed significantly from the classical Sverdrup balance, with differences of 10x10(6)-20x10(6)m(3)/s in the interior tropical Northwest Pacific Ocean. Analyses showed that errors of wind stress estimation could not explain all of the differences. The largest differences were found in the areas immediately north and south of the bifurcation latitude of the North Equatorial Current west of the dateline, and in the recirculation area of the Kuroshio and its extension, where nonlinear eddy activities were robust. Comparison of the geostrophic meridional transport and the wind-driven Sverdrup meridional transport in a high-resolution OFES simulation showed that nonlinear effects of the ocean circulation were the most likely reason for the differences. It is therefore suggested that the linear, steady wind-driven dynamics of the Sverdrup theory cannot completely explain the meridional transport of the interior circulation of the tropical Northwest Pacific Ocean.; Absolute geostrophic currents in the North Pacific Ocean were calculated using P-vector method from newly gridded Argo profiling float data collected during 2004-2009. The meridional volume transport of geostrophic currents differed significantly from the classical Sverdrup balance, with differences of 10x10(6)-20x10(6)m(3)/s in the interior tropical Northwest Pacific Ocean. Analyses showed that errors of wind stress estimation could not explain all of the differences. The largest differences were found in the areas immediately north and south of the bifurcation latitude of the North Equatorial Current west of the dateline, and in the recirculation area of the Kuroshio and its extension, where nonlinear eddy activities were robust. Comparison of the geostrophic meridional transport and the wind-driven Sverdrup meridional transport in a high-resolution OFES simulation showed that nonlinear effects of the ocean circulation were the most likely reason for the differences. It is therefore suggested that the linear, steady wind-driven dynamics of the Sverdrup theory cannot completely explain the meridional transport of the interior circulation of the tropical Northwest Pacific Ocean.
关键词	Sverdrup Theory Absolute Geostrophic Current P-vector
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-013-2169-0
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000318719700021
WOS关键词	SVERDRUP BALANCE ; CIRCULATION ; ATLANTIC ; 24-DEGREES-N ; ACCOUNT ; SEA
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
引用统计	被引频次：9[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/337002/16409
专题	海洋环流与波动重点实验室
通讯作者	Yuan, DL
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.USN, Naval Ocean Anal & Predict NOAP Lab, Dept Oceanog, Postgrad Sch, Monterey, CA USA
第一作者单位	中国科学院海洋研究所; 海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Zhang Zhichun,Yuan Dongliang,Chu, Peter C.,et al. Geostrophic meridional transport in tropical Northwest Pacific based on Argo profiles[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(3):656-664.
APA	Zhang Zhichun,Yuan Dongliang,Chu, Peter C.,&Yuan, DL.(2013).Geostrophic meridional transport in tropical Northwest Pacific based on Argo profiles.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(3),656-664.
MLA	Zhang Zhichun,et al."Geostrophic meridional transport in tropical Northwest Pacific based on Argo profiles".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.3(2013):656-664.

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