Study on numerical simulation and dynamic mechanism of winter-time circulation in the eastern China seas

Han Dong; Hou Yijun; Wei Zexun; Liu Xingquan; Zhao Xixi

doi:10.1007/BF02843625

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Study on numerical simulation and dynamic mechanism of winter-time circulation in the eastern China seas

Updated：2023-05-16

- Study on numerical simulation and dynamic mechanism of winter-time circulation in the eastern China seas
- Journal of Oceanology and Limnology Vol. 22, Issue 4, Pages: 327-334(2004)
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Graduate School of the Chinese Academy of Sciences
  3. First Institute of Oceanography State Oceanic Administration
- Author bio：
- Funds：
- DOI：10.1007/BF02843625
  CLC：
- Published：2004
- Accepted：
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Dong, H., Yijun, H., Zexun, W. et al. Study on numerical simulation and dynamic mechanism of winter-time circulation in the eastern China seas., Chin. J. Ocean. Limnol. 22, 327–334 (2004). https://doi.org/10.1007/BF02843625
DOI：

Dong, H., Yijun, H., Zexun, W. et al. Study on numerical simulation and dynamic mechanism of winter-time circulation in the eastern China seas., Chin. J. Ocean. Limnol. 22, 327–334 (2004). https://doi.org/10.1007/BF02843625 DOI：

摘要

Abstract

An MOM2 based 3-dimentional prognostic baroclinic Z-ordinate model was established to study the circulation in eastern China seas

considering the topography

inflow and outflow on the open boundary

wind stress

temperature and salinity exchange on the sea surface. The results were consistent with observation and showed that the Kuroshio intrudes in large scale into the East China Sea continental shelf East China

during which its water is exchanged ceaselessly with outer sea water along Ryukyu Island. The Tsushima Warm Current is derived from several sources

a branch of the Kuroshio

part of the Taiwan Warm Current

and Yellow Sea mixed water coming from the west of Cheju Island. The water from the west of Cheju Island contributes approximately 13% of the Isushima Warm Current total transport through the Korea Strait. The circulation in the Bohai Sea and Yellow Sea is basically cyclonic circulation

and is comprised of coastal currents and the Yellow Sea Warm Current. Besides simulation of the real circulation

numerical experiments were conducted to study the dynamic mechanism. The numerical experiments indicated that wind directly drives the East China Sea and Yellow Sea Coastal Currents

and strengthens the Korea Coastal Current and Yellow Sea Warm Current. In the no wind case

the kinetic energy of the coastal current area and main YSWC area is only 1% of that of the wind case. Numerical experiments also showed that the Tsushima Warm Current is of great importance to the formation of the Korea Coastal Current and Yellow Sea Warm Current.

关键词

Keywords

references

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