The numerical study on the dynamic mechanism of the South China Sea upper circulation in winter

CAI Shu-qun; SU Ji-lan; GAN Zi-jun; LIU Qin-yu

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CAI Shu-qun, SU Ji-lan, GAN Zi-jun, LIU Qin-yu. The numerical study on the dynamic mechanism of the South China Sea upper circulation in winter[J]. Haiyang Xuebao, 2001, 23(5): 14-23.

Citation:

CAI Shu-qun, SU Ji-lan, GAN Zi-jun, LIU Qin-yu. The numerical study on the dynamic mechanism of the South China Sea upper circulation in winter[J]. Haiyang Xuebao, 2001, 23(5): 14-23.

CAI Shu-qun, SU Ji-lan, GAN Zi-jun, LIU Qin-yu. The numerical study on the dynamic mechanism of the South China Sea upper circulation in winter[J]. Haiyang Xuebao, 2001, 23(5): 14-23.

Citation:

CAI Shu-qun, SU Ji-lan, GAN Zi-jun, LIU Qin-yu. The numerical study on the dynamic mechanism of the South China Sea upper circulation in winter[J]. Haiyang Xuebao, 2001, 23(5): 14-23.

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The numerical study on the dynamic mechanism of the South China Sea upper circulation in winter

1.
South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou 510301, China
2.
Second Institute of Oceanography, State Ocean Administration, Hangzhou 310012, China
3.
Qingdao Ocean University, Qingdao 266003, China

Received Date: 2000-06-05
Rev Recd Date: 2000-12-05

Abstract

Abstract

An divisional barotropic and baroclinic connection model is employed to study the South China Sea(SCS) upper circulation character istics and its dynamic mechanism in winter.The results are:(1) In the northern SCS, the flow state is mainly affected by Kuroshio,it is controlled by a cyclonic gyre there except in the continental shelf sea areas to the southwest of Dongsha Islands and adjacent to the west shore of northern Luzon Isalnd where there exists an anticyclonic eddy respectively.(2) It is mainly wind-driven current in the southern SCS,the water from alongshore of western Guangdong is driven by the northeast monsoon and then flows southward along the western boundary shorelines of the SCS,thus a rather strong western boundary current is formed;in the meanwhile,due to the actions of β effect and bottom topographic effect of continental shelf to the south of Beikang Shoals,an about 50 d periodic process on which an anticy clonic eddy bears in the Nansha Trough、grows and spreads westward then declines is shown in the southern SCS.
- numerical model,
- South China Sea,
- circulation,
- monsoon,
- eddy,
- fluctuation

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References(9)

References

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