Currents and mixing in the northern South China Sea

Junliang Liu; Shuqun Cai; Sheng’an Wang

doi:10.1007/s00343-010-9094-2

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Currents and mixing in the northern South China Sea

OriginalPaper | Updated：2023-05-16

- Currents and mixing in the northern South China Sea
- Currents and mixing in the northern South China Sea
- 海洋湖沼学报（英文） 2010年28卷第5期页码：974-980
- Affiliations：
  
  1. MORL South China Sea Institute of Oceanology Chinese Academy of Sciences
  2. Graduate University of the Chinese Academy of Sciences
  3. LED South China Sea Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KZCX1-YW-12-03), China National Funds for Distinguished Young Scientists, National High Technology Research and Development Program of China (863 Program) (Nos. 2008AA09Z112, 2008AA09A402), National Natural Science Foundation of China (No. 40676021), and the Chinese Oceanic Association (No. DYXM-115-02-4-02)
- DOI：10.1007/s00343-010-9094-2
  中图分类号：
- 网络首发：2010-09-11，
  
  纸质出版：2010
- Accepted：
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Currents and mixing in the northern South China Sea[J]. 海洋湖沼学报（英文）, 2010,28(5):974-980.

Liu, J., Cai, S. & Wang, S. Currents and mixing in the northern South China Sea., Chin. J. Ocean. Limnol. 28, 974–980 (2010). https://doi.org/10.1007/s00343-010-9094-2
Currents and mixing in the northern South China Sea[J]. 海洋湖沼学报（英文）, 2010,28(5):974-980. DOI： 10.1007/s00343-010-9094-2.

Liu, J., Cai, S. & Wang, S. Currents and mixing in the northern South China Sea., Chin. J. Ocean. Limnol. 28, 974–980 (2010). https://doi.org/10.1007/s00343-010-9094-2 DOI：

摘要

Abstract

We investigated the vertical distribution of current velocity data of the entire water column at a site on the continental shelf of the northern South China Sea (SCS) from August 4 to September 6

2007

and found that the characteristics of barotropic and baroclinic tides are mainly diurnal. During the observation period

we also estimated the mixing before and after the passage of Typhoon Pabuk. We found that the internal-wave-scale dissipation rate

the turbulent dissipation rate

and the mixing rate in every water layer increased by about an order of magnitude after the typhoon passage. We analyzed a case of abrupt strong current and calculated the mixing rate before

during

and after the typhoon event. The results show that the internal-wave-scale dissipation rate and the mixing rate in every water layer increased by about two orders of magnitude during the event

while the turbulent dissipation rate increased by about an order of magnitude. Passage of the abrupt strong current could also have increased the mixing rate of affected seawater by more than an order of magnitude. However

the passage of the typhoon differed in that there was an increase in mixing only in the lower layer where the abrupt strong current was particularly strong. The variation of the mixing rate may help us to understand the effects of typhoons and abrupt strong currents on the mixing of seawater.

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references

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