大亚湾的潮汐动力学研究--Ⅱ.潮位和潮流双峰现象的产生机制

发布时间：2018-06-09 02:16

本文选题：大亚湾 + 双峰水位　；参考：Ⅱ.潮位和潮流双峰现象的产生机制

【摘要】：文章为大亚湾潮汐动力学系列研究论文的第二部分,主要关注大亚湾双峰水位现象和涨潮流速双峰现象的产生机制。基于前人研究成果和数学解析方法,得出在大亚湾海域水位的双峰现象主要是由以M_2为代表的半日分潮与四分之一日分潮(如M_4分潮)和六分之一日分潮(如M-_6分潮)共同作用造成的。并对产生双峰水位和涨潮流速双峰的条件进行了数学解析,利用数值模拟结果发现,M_2/M_4分潮组合在大亚湾并不能产生双峰水位现象,而M_2/M_6分潮组合只能在大亚湾东北的范和港产生双峰水位现象。相对而言,M_2、M_4和M_6 3个分潮叠加的组合在双峰水位的产生范围和双峰间落差上都要大于上述2个分潮的组合。在大亚湾湾内区域,涨潮流速双峰可以由M_2/M_4分潮组合,M_2/M_6分潮组合和M_2/M_4/M_6分潮组合产生,M_2/M_4/M_6分潮产生的涨潮流速双峰强度要比另外两组分潮组合大。
[Abstract]:This paper is the second part of a series of studies on tidal dynamics in Daya Bay, focusing on the mechanism of the bimodal water level phenomenon and the bimodal tidal velocity phenomenon in Daya Bay. Based on previous research results and mathematical analytical methods, It is concluded that the bimodal phenomenon of water level in Daya Bay is mainly caused by the action of the half-day tide represented by M _ (2), the one-day tide (such as M _ 4) and the one-sixth tide (such as M-6). The condition of producing double peak water level and rising tide velocity double peak is analyzed. By using the numerical simulation results, it is found that the two-peak water level phenomenon can not be produced in Daya Bay by the combination of M _ (2) / M _ (4) min tide. The M-2 / M6 tidal component can only produce bimodal water level phenomenon in Fan and Gang northeast of Daya Bay. Comparatively speaking, the combination of M _ 2M _ S _ 4 and M _ 6 is larger than the combination of the above mentioned two tidal components in the generation range and the drop difference between the two peaks. In the area of Daya Bay, the double peak of high tide velocity can be generated by MSP 2 / M 4 tide assemblage, M2 / M 4 minute tide combination, M2 / M / M 6 tide combination, and M 2 / M 4 / M 6 tide combination, and by M 2 / M 4 / M 6 tide combination, the peak strength of the two peaks is higher than that of the other two component tidal combinations, which are generated by the M 2 / M 4 / M 6 tide.
【作者单位】：中国海洋大学物理海洋教育部重点实验室;中国海洋大学海洋与大气学院;
【基金】：国家重点基础研究发展计划(2015CB452905) 中国博士后科学基金第8批特别资助(2015T80742)~~
【分类号】：P731.23

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