Vertical structure of the tide current in the central deep basin of the South China Sea

WANG Xue-zhu; LI Pei-liang; ZHANG Ting-ting

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WANG Xue-zhu, LI Pei-liang, ZHANG Ting-ting. Vertical structure of the tide current in the central deep basin of the South China Sea[J]. Haiyang Xuebao, 2009, 31(1): 20-27.

Citation:

WANG Xue-zhu, LI Pei-liang, ZHANG Ting-ting. Vertical structure of the tide current in the central deep basin of the South China Sea[J]. Haiyang Xuebao, 2009, 31(1): 20-27.

WANG Xue-zhu, LI Pei-liang, ZHANG Ting-ting. Vertical structure of the tide current in the central deep basin of the South China Sea[J]. Haiyang Xuebao, 2009, 31(1): 20-27.

Citation:

WANG Xue-zhu, LI Pei-liang, ZHANG Ting-ting. Vertical structure of the tide current in the central deep basin of the South China Sea[J]. Haiyang Xuebao, 2009, 31(1): 20-27.

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Vertical structure of the tide current in the central deep basin of the South China Sea

1.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China
2.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

Received Date: 2008-07-05
Rev Recd Date: 2008-12-04

Abstract

Abstract

During the South China Sea monsoon experiment,Taiwan University put three moored ATLAS buoys in the center deep basin of the South China Sea,in order to observe the long time serial data of water temperature,current and climate. Using almost 6 months current observation of three stations which is from October of 1998 to April of 1999,we used harmonic analysis and EOF method to study the spacial structure characteristic of tidal current in the observed sea. The results of harmonic analysis show that,in the observed sea it is dominated by the diurnal tide,the tidal ellipses rotate through the entire water column,and the tidal current is dominated by clockwise rotation,there are marked vertical variation in the tidal amplitudes. Making band-pass filtering of 10~30 hours on the real observed current and keeping the tidal period,after that using EOF to analyze the filtered tidal current,we can find that there are different vertical modes in the tidal current,which indicates that the tidal current in the deep basin of the South China Sea has strong baroclinicity.
- ATLAS moored buoy,
- diurnal tide component,
- semi-diurnal tide component,
- EOF,
- special mode,

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References(14)

References

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