The application of a three-dimensional baroclinic shelf sea model: The seasonal variation of the South China Sea upper mixed layer

Cai Shuqun; Gan Zijun

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Cai Shuqun, Gan Zijun. The application of a three-dimensional baroclinic shelf sea model: The seasonal variation of the South China Sea upper mixed layer[J]. Haiyang Xuebao, 2000, 22(3): 7-14.

Citation:

Cai Shuqun, Gan Zijun. The application of a three-dimensional baroclinic shelf sea model: The seasonal variation of the South China Sea upper mixed layer[J]. Haiyang Xuebao, 2000, 22(3): 7-14.

Cai Shuqun, Gan Zijun. The application of a three-dimensional baroclinic shelf sea model: The seasonal variation of the South China Sea upper mixed layer[J]. Haiyang Xuebao, 2000, 22(3): 7-14.

Citation:

Cai Shuqun, Gan Zijun. The application of a three-dimensional baroclinic shelf sea model: The seasonal variation of the South China Sea upper mixed layer[J]. Haiyang Xuebao, 2000, 22(3): 7-14.

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The application of a three-dimensional baroclinic shelf sea model: The seasonal variation of the South China Sea upper mixed layer

South China An Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301

Received Date: 1998-12-09
Rev Recd Date: 1999-09-12

Abstract

Abstract

According to a three-dimensional baroclinic shelf sea model's numerical simulation results, the seasonal variation of the South China Sea(SCS)upper mixed layer is revealed.It is shown that: (1)In the northern SCS, the variation of the upper mixed layer depth(i.e.,the depth of the lower limit of mixed layer)is distinctly seasonal, which is different to that in the southern SCS, and the strength variation range of mixed layer is larger in the northern SCS.(2) In the western boundary area along the east offshore of middle Indo-China Peninsular, due to the control of cold eddy, the lower cold water upwells, and the upper layer water stratifys distinctly, which makes the vertical mixing weakened.(3) In the peripheries of some cyclonic(anticyclonic) eddies, the distribution of mixed layer depth isobath is dense and its horizontal gradient is large.(4) There is a good relation of geostrophic adjustment between the distribution characteristic of upper mixed layer and the pattern of upper circulation in the SCS.
- South China Sea,
- upper mixed layer,
- circulation pattern,
- numerical simulation

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References(12)

References

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