| 摘要: |
| 以1939-1978年的7月平均风场代表夏季风，数值求解南海流场对风应力输入的响应。结果表明，即使盛夏仍有黑潮水经巴士海峡流入南海；风应力与陆坡地形相互作用的影响，在116°E以西陆坡上占优势，形成辐散上升，生成低水位带及冷水带，其北侧生成夏季逆风流；116°E以东陆坡上，黑潮水占优势，具有向北分量流速的黑潮水在那里辐聚下沉形成高水位带及暖水带，其北侧生成东北向顺风流（即夏季南海暖流）。 |
| 关键词: 夏季风 风应力 逆风流 数值模拟 |
| DOI： |
| 分类号: |
| 基金项目:“八五”国家重点科技专项，85-927-07-05 |
附件 |
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| NUMERICAL SIMULATION OF SUMMER UPWIND FLOW IN THE NORTHEASTERN SOUTH CHINA SEA |
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Yuan Shuyao, Deng Jiuzi
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South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301
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| Abstract: |
| To confirm the existence of summer upwind flow in the northeastern of the South China Sea, the secular average wind field of July of 1939 - 1978 was used as summer wind field and Backhaus's 3-D baroclinic shelf circulation numerical model was used to numerically solve the flow fields in the northeastern South China Sea response to summer monsoon fields. The results indicated that even in mid-summer, Kuroshio Water still flows through the Bashi Strait into the SCS (KWFTBSS). The prevailing interaction between summer wind stress and continental slope topography results in divergence and ascent of seawater, low elevation and a cold seawater belt whose northern side has summer upwind flow west of 116.0°E. East of 116.0°E. KWFTBSS prevails, surface layer seawater converges and downwells to form high elevation warm water belts, and to generate northeastward current in the continental slope at the northern side.
The conclusion in present paper is that there is summer upwind flow west of 116.0° E in the northeastern South China Sea during the summer monsoon. |
| Key words: Summer monsoon, Wind stress, Upwindflow, Numerical simulation |
