象山港潮波响应和变形研究 Ⅱ.象山港潮波数值研究
Tide response and tide wave distortion study in the Xiangshan Bay Ⅱ. Numerical modelling study in the Xiangshan Bay
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摘要: 通过象山港水域的潮波运动数值模拟,分析了象山港M4分潮的生成和增长机制.结果说明,潮波传播中的非线性底摩擦效应是M4分潮生成和增长的主要控制因子,M4分潮在湾内的共振现象也起着重要的放大作用二平流效应在绝大部分区域中抑制了M4分潮的发展,只有在佛渡水道中一些岛屿周围极小区域内对M4分潮有增强作用.潮滩在湾内对M4分潮的影响极其微弱.Abstract: The mechanisms of M4 tide component are analyzed by means of a tide modelling in the Xiangshan Bay.The result shows that the generating and developing processes of M4 tide component are controlled mainly by the effects of the nonlinear bottom friction during the tide wave propagation.The M4 tide co-oscillation is important to amplify the M4 tide in the Xiangshan Bay.The effect of advection amplifies the M4 tide only in the small individual area near some islands located in the Fudu Channel.The tidal flat has a little effect on the M4 tide.
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Key words:
- Distortion /
- M4 tide /
- numerical modellinx /
- Xiangshan Bay
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