Numerical study of the tides and residual currents in the Qiongzhou Strait

Changlin Chen; Peiliang Li; Maochong Shi; Juncheng Zuo; Meixiang Chen; Haiping Sun

doi:10.1007/s00343-009-9193-0

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Numerical study of the tides and residual currents in the Qiongzhou Strait

OriginalPaper | Updated：2023-05-16

- Numerical study of the tides and residual currents in the Qiongzhou Strait
- Numerical study of the tides and residual currents in the Qiongzhou Strait
- 海洋湖沼学报（英文） 2009年27卷第4期页码：931-942
- Affiliations：
  
  1. Physical Oceanography Laboratory Ministry of Education Ocean University of China
  2. Key Laboratory of Coastal Disaster and Defense Hohai University
  3. CNOOC New Energy Investment Co. Ltd.
- Author bio：
- Funds：
  
  Supported by the National Basic Research Program (973 Program) (No. 2007CB411807), the Open Research Program of the CAS Key Laboratory of Tropical Marine Environmental Dynamics (No. LED0404), the Key Project of Chinese Ministry of Education (No. 108159), and the National Key Technologies R&D Program (No. 2007BAC03A06), China.
- DOI：10.1007/s00343-009-9193-0
  中图分类号：
- 网络首发：2009-12-04，
  
  纸质出版：2009
- Accepted：
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Numerical study of the tides and residual currents in the Qiongzhou Strait[J]. 海洋湖沼学报（英文）, 2009,27(4):931-942.

Chen, C., Li, P., Shi, M. et al. Numerical study of the tides and residual currents in the Qiongzhou Strait., Chin. J. Ocean. Limnol. 27, 931–942 (2009). https://doi.org/10.1007/s00343-009-9193-0
Numerical study of the tides and residual currents in the Qiongzhou Strait[J]. 海洋湖沼学报（英文）, 2009,27(4):931-942. DOI： 10.1007/s00343-009-9193-0.

Chen, C., Li, P., Shi, M. et al. Numerical study of the tides and residual currents in the Qiongzhou Strait., Chin. J. Ocean. Limnol. 27, 931–942 (2009). https://doi.org/10.1007/s00343-009-9193-0 DOI：

摘要

Abstract

Based on the three-dimensional ECOM model

the tide

tide-induced residual current

wind-driven and density currents in the Beibu (Tonkin) Gulf and Qiongzhou Strait are diagnostically computed in fine grid. The tides and tidal currents in the Beibu Gulf and Qiongzhou Strait are well reproduced. The model results show that the semidiurnal tidal wave propagates eastward from the Beibu Gulf through Qiongzhou Strait

while diurnal tidal waves enter the strait from both the eastern and western sides and interact on the southeast coast of the strait. The formation processes of the residual currents in Qiongzhou Strait in summer (August) and winter (January) are mainly discussed. It is shown that the total residual currents (coupling effect of wind

tide and density) in the strait are westward in both summer and winter. The water volume transported from the east to west into the Beibu Gulf is 0.026 Sv in summer and 0.116 Sv in winter. Numerical experiments indicate that the dominant factor affecting the residual currents in the strait is not the wind stress but the tidal rectification. The westward tide-induced residual current

driven by the tidal rectification

is rather strong in the strait with water volume transport of 0.063 Sv. The wind in summer only reduces the westward tide-induced residual current to a certain extent

and the wind in winter approximately doubles the westward tide-induced residual current through the strait. The density current contributes little to the total residual current in both summer and winter.

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Keywords

references

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