Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment

Po Hu; Yijun Hou

doi:10.1007/s00343-010-9293-x

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Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment

OriginalPaper | Updated：2023-05-16

- Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment
- Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment
- 海洋湖沼学报（英文） 2010年28卷第2期页码：364-370
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Key Laboratory of Ocean Circulation and Waves (KLOCAW) Chinese Academy of Sciences
  3. Graduate University of Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KZCX1-YW-12, KZCX2-YW-201), the National Natural Science Foundation of China (No. 90411013), and the National High Technology Research and Development Program (863 Program) of China (No. 2007AA092201)
- DOI：10.1007/s00343-010-9293-x
  中图分类号：
- 网络首发：2010-03-20，
  
  纸质出版：2010
- Accepted：
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Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment[J]. 海洋湖沼学报（英文）, 2010,28(2):364-370.

Hu, P., Hou, Y. Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment., Chin. J. Ocean. Limnol. 28, 364–370 (2010). https://doi.org/10.1007/s00343-010-9293-x
Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment[J]. 海洋湖沼学报（英文）, 2010,28(2):364-370. DOI： 10.1007/s00343-010-9293-x.

Hu, P., Hou, Y. Path transition of the western boundary current with a gap due to mesoscale eddies: a 1.5-layer, wind-driven experiment., Chin. J. Ocean. Limnol. 28, 364–370 (2010). https://doi.org/10.1007/s00343-010-9293-x DOI：

摘要

Abstract

Using a 1.5 layer nonlinear shallow-water reduced-gravity model

we executed numerical simulations to investigate the possibility of a western boundary current (WBC) path transition due to mesoscale eddies based on the background of the Kuroshio intrusion into the South China Sea (SCS) from the Luzon Strait. Because the WBC existed different current states with respect to different wind stress control parameters

we chose three steady WBC states (loop current

eddy shedding and leaping) as the background flow field and simulated the path transition of the WBC due to mesoscale eddies. Our simulations indicated that either an anticyclonic or cyclonic eddy can lead to path transition of the WBC with different modes. The simulation results also show that the mesoscale eddies can lead to path transition of the WBC from loop and eddy shedding state to leaping state because of the hysteresis effect. The leaping state is relatively stable compared with the mesoscale eddies. Moreover

an anticyclonic eddy is more effective in producing the WBC path transition for the path transition than a cyclonic eddy. Our results may help to explain some phenomena observed regarding the path transition of the Kuroshio due to the mesoscale eddies at the Luzon Strait.

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references

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