Origin and pathway of the Luzon Undercurrent identified by a simulated adjoint tracer

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	Origin and pathway of the Luzon Undercurrent identified by a simulated adjoint tracer
	Gao, Shan 1; Qu, Tangdong 2; Hu, Dunxin 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2012-05-08
卷号	117 页码:C05011
关键词	WESTERN EQUATORIAL PACIFIC BOUNDARY CURRENTS PASSIVE TRACER OCEAN WATER MODEL LAYER SEA INTERMEDIATE CLIMATOLOGY
ISSN号	0148-0227
通讯作者	Gao, S (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
英文摘要	The origin and pathway of Luzon Undercurrent (LUC) water are investigated using a simulated adjoint tracer, based on circulation estimates of a global general circulation model. The results demonstrate that most of the LUC water comes from the subtropical North Pacific, confirming the earlier hypothesis on its relation to the northward shift of the North Equatorial Current (NEC) bifurcation at subsurface. Of the total volume of initially tracer-tagged LUC water, approximately 41% is traced back to the winter mixed layer in the Kuroshio extension after 50 years of integration, coinciding with the formation of subtropical mode waters, while the rest is trapped in the northern subtropical gyre with its density >26.8 kg m(-3), indicative of a significant South Pacific origin. As these waters move toward the western boundary, they get mixed and finally reach the density range of the LUC water. This result provides quantitative evidence for the dramatic impact of mixing on the route of subtropical water to becoming the LUC water.
学科主题	Oceanography
收录类别	SCI
原文出处	10.1029/2011JC007748
语种	英语
WOS记录号	WOS:000304010000003
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/12178]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Univ Hawaii Manoa, SOEST, Int Pacific Res Ctr, Honolulu, HI 96822 USA
推荐引用方式 GB/T 7714	Gao, Shan,Qu, Tangdong,Hu, Dunxin. Origin and pathway of the Luzon Undercurrent identified by a simulated adjoint tracer[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2012,117:C05011.
APA	Gao, Shan,Qu, Tangdong,&Hu, Dunxin.(2012).Origin and pathway of the Luzon Undercurrent identified by a simulated adjoint tracer.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,117,C05011.
MLA	Gao, Shan,et al."Origin and pathway of the Luzon Undercurrent identified by a simulated adjoint tracer".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 117(2012):C05011.