Structure of a pair of anticyclonic vortices in northern part of the South China Sea in autumn of 1994 |
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| Authors: | Fu Gang and Toshio Yamagata |
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| Institution: | 1.Department of Marine Meteorology, Ocean University of Qingdao, Qingdao 266003, China2.Department of Earth and Planetary Physics, University of Tokyo, Japan |
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| Abstract: | A pair of remarkable meso-scale anticyclonic vortices, one formed closely to another, inthe northern part of the South China Sea during the period from the later August to early September of 1994 were documented by the in situ observation data. Their spatial structures were examined in detail from the horizontal and two nearly perpendicular/vertical angles of view. It was shown that the horizontal scales of these two vortices were around 100, 50 km, and their vertical scales were about 500, 1000 m, respectively. Two "warm core" structures associated with these two vortices were found in their horizontal and vertical analyses. The closer spacing of these two vortices (namely, 60 km), which was smaller than the Rossby radius of deformation, suggested that they might merge with each other during their next evolution stages and form into a larger vortex eventually. |
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| Keywords: | The South China Sea a pair of anticyclonic vortices warm core Rossby radius of deforma-tion |
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