渤海主要浅水分潮的模型研究

发布时间：2018-04-03 12:30

本文选题：POM模型　切入点：天文分潮　出处：《海洋通报》2016年02期

【摘要】：采用POM海洋模式模拟了渤海潮汐的主要特征。4个主要天文分潮的计算结果与实测吻合较好,在此基础上进一步探讨了渤海3个主要浅水分潮的基本特征。根据模式计算结果发现:渤海M_4和MS_4潮波传播特征类似,均存在5个潮波系统,其中4个为逆时针旋转,1个为顺时针旋转,与前人的研究成果比较一致。此外,根据浅水分潮和产生浅水分潮的源分潮的关系式推算得到MS_4分潮的振幅和迟角,与直接通过调和分析得到MS_4分潮的振幅和迟角进行对比,结果也是比较符合。针对M_6分潮在渤海传播特征进行分析,发现:本海域存在7个M_6分潮无潮点,其中4个为逆时针旋转,3个为顺时针旋转。计算结果还发现:3个浅水分潮都是在近岸浅水海域振幅相对较大,这显然与浅水分潮的产生机制密切相关。
[Abstract]:The POM ocean model is used to simulate the main characteristics of the tide in the Bohai Sea. The calculated results of the four main astronomical tidal components are in good agreement with the measured results. On this basis, the basic characteristics of the three main shallow water tidal components in the Bohai Sea are further discussed.It is found that there are five tidal wave systems in Bohai Sea, four of them are counterclockwise rotation and one is clockwise rotation, which is consistent with previous research results.In addition, according to the relation between shallow water tidal component and source tidal component of shallow water, the amplitude and late angle of MS_4 tidal component are calculated and compared with that of MS_4 tide component obtained by direct harmonic analysis. The results are in good agreement with each other.Based on the analysis of the characteristics of M6 tide propagation in the Bohai Sea, it is found that there are 7 M6 tide points without tide in this sea area, of which 4 are counterclockwise and 3 clockwise.The results also show that the amplitude of the three shallow water tides is relatively large in the coastal shallow waters, which is obviously closely related to the generation mechanism of shallow water tidal components.
【作者单位】：上海海洋大学海洋科学学院;
【基金】：中国科学院海洋战略先导研究专项(XDA11020305.2) 上海市教委创新项目(12ZZ165)
【分类号】：P731.23

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