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研究了潮汐（四大分潮 M2,S2,K1,O1同时输入）作用下渤海温跃层起伏与波动的三维数值模型（将海洋分为3层,即上混和层、跃层和下混和层）,揭示了整个海区温跃层上界面处跃层起伏（在文中指每个时刻跃层波高的周期平均值）的地理分布及叠加在起伏之上的潮周期波动的时空变化,模拟出跃层波动与实测基本一致.结果发现大振幅的跃层波动均发生在海峡及近海地形突变之处.一般界面波动的波高大于甚至远远大于同一位置的表层潮波.从位相以及周期来看,潮波和跃层上下界面波动相互之间,有些海域一致,有些地方则相差甚远.跃层上界深度及厚度的梯度,对跃层起伏分布有一定的影响.跃层起伏还可能与海岸海底摩擦有关.
The three-dimensional numerical model of the thermocline fluctuation and fluctuation in the Bohai Sea under the action of tides (four simultaneous taps of M2, S2, K1 and O1) is studied (the ocean is divided into three layers, that is, the upper mixing layer, the upper layer and the lower mixing layer) , Reveals the geographical distribution of the thermocline ups and downs (in the text refers to the periodic mean of the thermocline at each moment) across the entire upper thermocline and the spatio-temporal variations of the periodic fluctuations superimposed on the ups and downs, The results show that the fluctuation of large-amplitude thermocline occurs in the abrupt changes of the strait and offshore terrain, and the wave height of the general interface fluctuates much larger than the surface tidal wave which is far greater than the same position. From the phase and period, The fluctuation of upper and lower interfaces of wave and thermocline is consistent with each other in some sea areas and far apart in some areas. The depth and thickness gradient of the upper bound of the thermocline have some influence on the fluctuation of the thermocline. Friction related.