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学科主题: Limnology; Oceanography
题名: The western South China Sea currents from measurements by Argo profiling floats during October to December 2007
作者: Zhou, H ; Yuan, DL ; Li, RX ; He, L
通讯作者: zhouhui@qdio.ac.cn
关键词: Southern South China Sea ; western boundary current ; Argo profiling float ; intermediate-depth current
刊名: CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
发表日期: 2010-01-01
卷: 28, 期:2, 页:398-406
收录类别: sci
部门归属: [Zhou Hui; Yuan Dongliang; He Lei] Chinese Acad Sci, Key Lab Ocean Circulat & Wave Studies, Inst Oceanol, Qingdao 266071, Peoples R China; [Li Ruixiang] State Ocean Adm, S China Sea Marine Engn Surveying Ctr, Guangzhou 510300, Guangdong, Peoples R China
项目归属: LED
摘要: The three dimensional structure of the western boundary current east of the Vietnam coast was determined from measurements by Argo profiling floats which deployed near the east of the Vietnam Coast in October 2007. The trajectories of the Argo floats provided robust evidence that there does exist southward flowing current along the Vietnam coast. The southward current begins at about 15A degrees N, 111A degrees E, flowing along the 1 000 m isobath and extending to 5A degrees N south. The estimated surface and parking depth velocities obtained from the floats suggest that this southward current can extend to 1 000 m depth. The mean surface velocity of the western boundary current is about 49 cm/s, with the maximum speed exceeding 100 cm/s occurring at 11.6A degrees N, 109.5A degrees E in the direction of 245A degrees. The mean parking depth (1 000 m) velocity is 12-16 cm/s with the maximum speed of 36 cm/s occurring at 12.1A degrees N, 109.7A degrees E in the direction of 239A degrees. The water mass analysis suggests that the Kuroshio surface water and NPIW are not apparent in the western boundary current although this time was the favored season for the Kuroshio intrusion into Luzon Strait. The mean geostrophic currents suggest that the Kuroshio intrusion into Luzon Strait during October to December 2007 is very weak, as most of the intruding water was carried eastward at 14A degrees N near the western boundary and little flowed southward along the western boundary, providing an explanation for the absence of Kuroshio surface water and NPIW in the water mass analysis. There is a strong cyclonic circulation in the SSCS during this time, which induces a strong mixing in the western boundary companied by a homogeneous salinity layer between 300-600 m in the salinity vertical distribution. No reversal undercurrent occurred at the intermediate depth along the western boundary east of the Vietnam coast during October to December 2007.
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6311
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Recommended Citation:
Zhou, H; Yuan, DL; Li, RX; He, L.The western South China Sea currents from measurements by Argo profiling floats during October to December 2007,CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(2):398-406
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文件名: The western South China Sea currents from measurements by Argo profiling floats during October to December 2007.pdf
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