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通过半封闭矩形理想海湾的潮波运动数值模拟，分析了潮滩及平流效应对M4分潮的生成和增长的影响．结果说明潮滩的作用不但依赖本身的规模和湾内潮波非线性的强弱，而且与潮滩在湾内所处位置关系很大．在存在M4分潮共振的海湾中，平流效应可以抑制共振对M4分潮的放大作用．
The effects of tidal flats and advection effects on the formation and growth of M4 tide are analyzed by the numerical simulation of the tidal wave motion in a semi-closed rectangular ideal bay. The result shows that the role of tidal flat not only depends on its own scale and the strength of tidal wave nonlinearity in the bay, but also plays a very important role in the position of tidal flat in the bay. In the Gulf with M4 tidal resonance, the advection effect can restrain the amplifying effect of resonance on M4 tide.