| 摘要: |
| 基于Blumberg等(1996)的ECOMSED模式，对长江口外海区域夏季的上升流现象进行了数值模拟。模式综合考虑径流，风应力，环流，热通量和M2，S2，K1，O1四个主要分潮的作用，从而提高长江口外海区域上升流模拟的准确性和可靠性，并通过各种控制实验分析了其动力机制，进一步说明本区域影响上升流的主要因子。数值实验表明，长江口外水下河谷的南边(杭州湾口门中心东侧)，上升流主要是由向北流动的台湾暖流通过底Ekman效应和陆坡的抬升共同作用产生的。夏季偏南风对长江口外水下河谷西侧上升流的产生有一定影响，但作用不大。此外，潮汐潮流对上升流的产生也起着一定的作用，但在本文关注的上升流区潮作用影响不大。
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| 关键词: 长江口 三维潮流 ECOMSED模型 上升流 Ekman效应 陆坡抬升 |
| DOI： |
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| 基金项目:中国科学院知识创新工程项目（kzcx2-yw-201，kzcx3-sw-232，kzcx2-yw-208-03） |
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| Numerical study of upwelling of the Changjiang River Estuary and its adjacent sea area in summer |
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BAI Tao,YANG De-zhou,YIN Bao-shu
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| Abstract: |
| Based on the ECOMSED model (Blumberg et al., 1996), a research has been done to analyze the dynamic mechanisms of the upwelling of the Changjiang River Estuary and its adjacent sea area in summer. In order to improve the reliability of upwelling simulation of CRE and its adjacent sea area, the impacts of river flow, wind, circulation, heat flux and tides (including M2，S2，K1，O1) are taken into account. The result of simulation suggests that the upwelling is mainly induced by the Ekman effect caused by Taiwan Warm Current and continental slope rising. Local tides is not a main effect.
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| Key words: the Changjiang River Estuary three-dimensional tidal current ECOMSED model upwelling Ekman effect continental slope rising |
