| 南海东北部及台湾海峡环流机制的数值研究 |
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| 引用本文： | 蔡树群,王文质.南海东北部及台湾海峡环流机制的数值研究[J].热带海洋学报,1997(1). |
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| 作者姓名： | 蔡树群 王文质 |
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| 作者单位： | 中国科学院南海海洋研究所!广州，510301，中国科学院南海海洋研究所!广州，510301 |
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| 基金项目： | 国家自然科学基金!49476279，所长基金 |
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| 摘 要： | 利用1个正压的数值模式研究风应力、黑潮对南海东北部及台湾海峡环流的影响，结果为：（1）以风应力为驱动机制时其流态特别是在台湾海峡的流动具有季节性，但未反映南海黑潮分支的存在；在冬季也未见有南海暖流出现，但在东沙群岛附近海域终年存在着1个气旋涡；（2）以黑潮为驱动机制时，黑潮通过巴士海峡侵入南海海域，并导致东沙群岛附近气旋性涡旋的形成。另外，模式体现黑潮南海分支、南海暖流及台湾暖流的存在，并表明广东沿岸大陆架坡折区底形效应的重要性；（3）以风应力及黑潮入流作为联合驱动机制时，模式的结果似为第1，2种情形结果的叠加。
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| 关 键 词： | 正压数值模式 南海暖流 环流 南海黑潮分支 气旋涡 台湾暖流 |
A NUMERICAL STUDY ON THE CIRCULATION MECHANISM IN THE NORTHEASTERN SOUTH CHINA SEA AND TAIWAN STRAIT |
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| CAI Shuqun ,WAN Wehzhi.A NUMERICAL STUDY ON THE CIRCULATION MECHANISM IN THE NORTHEASTERN SOUTH CHINA SEA AND TAIWAN STRAIT[J].Journal of Tropical Oceanography,1997(1). |
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| Authors: | CAI Shuqun WAN Wehzhi |
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| Abstract: | A barotropic numerical model was used to study the effects of wind stress andKuroshio on the circulation of the northeastem South China An and Taiwan Strait. Theresults are: (1) when driven by wind force, the flow state in the above area, especiallyTaiwan Shrait is seasonal, but the South China Sea Branch of Kuroshio is not shown,thereappears no existence of South China Sea Warm Current, but there exists an allyear cycloniceddy near Dongsha Islands. (2) when driven by inflow of Kuroshio, Kuroshio intrudes intothe South China Sea through Bashi Channel and results in the formation of a cycloniceddy near Dongsha Islands. Furthermore, the existences of South China Sea Branch ofKuroshio South China Sea Warm Current and Taiwan Warm Current are shown in themodel, and the importance of the bottom topographic effect of the continental slope alongGuangdong coast is still shown. (3) when driven by both wind stress and Kuroshio, itseems that the model's results can be acquired by overlaying the results of case 1 and case2. |
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| Keywords: | barotropic numerical model South China Sea Warm Current circulation South China Sea Branch of Kuroshio cyclonic eddy Taiwan Warm Current |
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