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YUAN Yao-chu, BU Xian-wei, LOU Ru-yun, SU Ji-lan, WANG Kang-shan. Diagnostic calculation of the upper-layer circulation in the South China Sea during the winter of 1998[J]. Haiyang Xuebao, 2004, 26(2): 1-10.
Citation: YUAN Yao-chu, BU Xian-wei, LOU Ru-yun, SU Ji-lan, WANG Kang-shan. Diagnostic calculation of the upper-layer circulation in the South China Sea during the winter of 1998[J]. Haiyang Xuebao, 2004, 26(2): 1-10.

Diagnostic calculation of the upper-layer circulation in the South China Sea during the winter of 1998

  • Received Date: 2003-05-15
  • Rev Recd Date: 2003-07-14
  • On the basis of hydrographic data obtained in November 28-December 27, 1998 cruise, diagnostic calculation of the circulation in the South China Sea (SCS) is made by using the P vector method, in combination with SSH data from TOPEX/ERS-2 analysis.The following results have been obtained.(1) The main character istics of the circulation systems in the central SCS are as follows.A coastal southward jet in winter is present at the western boundary near the coast of Vietnam.There is a strong cyclonic circulation with a large horizontal scale east of this coastal southward jet and west of 114°E, and it is located about in the region from 10°N to 16°N.There is a weaker anticyclonic and warm eddy with a not large horizontal scale, and its center is located about at 14°N.There is a strong and nor theastward flow opposing the northeasterly monsoon between a strong cyclonic circulation and a weaker anticyclonic circulation above.The above distribution of circulation is the basic pattern of circulation in the central SCS, which agrees qualitatively with the horizontal distribution of temperature at 200 m level.
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