Water exchange and circulation structure near the Luzon Strait in early summer

doi:10.1007/s00343-011-0198-0

IOCAS-IR > 海洋环流与波动重点实验室

	Water exchange and circulation structure near the Luzon Strait in early summer
	Chen Gengxin 1,2; Hou Yijun 1,2; Chu Xiaoqing 1,2
	2011-03-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	29 期号:2 页码:470-481
文章类型	Article
摘要	Using hydrographic data covering large areas of ocean for the period from June 21 to July 5 in 2009, we studied the circulation structure in the Luzon Strait area, examined the routes of water exchange between the South China Sea (SCS) and the Philippine Sea, and estimated the volume transport through Luzon Strait. We found that the Kuroshio axis follows a epsilon-shaped path slightly east of 121 degrees E in the upper layer. With an increase in depth, the Kuroshio axis became gradually farther from the island of Luzon. To study the water exchange between the Philippine Sea and the SCS, identification of inflows and outflows is necessary. We first identified which flows contributed to the water exchange through Luzon Strait, which differs from the approach taken in previous studies. We determined that the obvious water exchange is in the section of 121 degrees E. The westward inflow from the Philippine Sea into the SCS is 6.39 Sv in volume, and mainly in the 100-500 m layer at 19.5 degrees-20 degrees N (accounting for 4.40 Sv), while the outflow from the SCS into the Philippine Sea is concentrated in the upper 100 m at 19 degrees-20 degrees N and upper 400 m at 21 degrees-21.5 degrees N, and below 240 m at 19 degrees-19.5 degrees N accounting for 1.07, 3.02 and 3.43 Sv in volume transport, respectively.; Using hydrographic data covering large areas of ocean for the period from June 21 to July 5 in 2009, we studied the circulation structure in the Luzon Strait area, examined the routes of water exchange between the South China Sea (SCS) and the Philippine Sea, and estimated the volume transport through Luzon Strait. We found that the Kuroshio axis follows a epsilon-shaped path slightly east of 121 degrees E in the upper layer. With an increase in depth, the Kuroshio axis became gradually farther from the island of Luzon. To study the water exchange between the Philippine Sea and the SCS, identification of inflows and outflows is necessary. We first identified which flows contributed to the water exchange through Luzon Strait, which differs from the approach taken in previous studies. We determined that the obvious water exchange is in the section of 121 degrees E. The westward inflow from the Philippine Sea into the SCS is 6.39 Sv in volume, and mainly in the 100-500 m layer at 19.5 degrees-20 degrees N (accounting for 4.40 Sv), while the outflow from the SCS into the Philippine Sea is concentrated in the upper 100 m at 19 degrees-20 degrees N and upper 400 m at 21 degrees-21.5 degrees N, and below 240 m at 19 degrees-19.5 degrees N accounting for 1.07, 3.02 and 3.43 Sv in volume transport, respectively.
关键词	Water Exchange The Luzon Strait Circulation Structure Kuroshio
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-011-0198-0
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000287924000027
引用统计	被引频次：15[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/337002/11621
专题	海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, KLOCAW, Qingdao 266071, Peoples R China
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	Chen Gengxin,Hou Yijun,Chu Xiaoqing. Water exchange and circulation structure near the Luzon Strait in early summer[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(2):470-481.
APA	Chen Gengxin,Hou Yijun,&Chu Xiaoqing.(2011).Water exchange and circulation structure near the Luzon Strait in early summer.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,29(2),470-481.
MLA	Chen Gengxin,et al."Water exchange and circulation structure near the Luzon Strait in early summer".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 29.2(2011):470-481.

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