| 全日潮海域风暴潮增水中全日扰动和半日扰动分析 |
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| 引用本文： | 李谊纯,刘金贵,董德信.全日潮海域风暴潮增水中全日扰动和半日扰动分析[J].海洋工程,2016,34(5):51-56. |
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| 作者姓名： | 李谊纯 刘金贵 董德信 |
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| 作者单位： | 1. 广西科学院 广西近海海洋环境科学重点实验室，南宁 530007 3. 滁州学院地理信息与旅游学院, 滁州 239000）;国家海洋环境预报中心，北京 100081;广西科学院 广西近海海洋环境科学重点实验室，南宁 530007 |
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| 基金项目： | 广西科学院基本业务费资助项目（13YJ22HY07； 10YJ25HY03）；广西自然科学基金资助项目（2015GXNSFBA139192） |
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| 摘 要： | 风暴潮增水是风暴潮与天文潮相互作用理论研究的基本内容,也是风暴潮预报中的重要问题。最大余水位的产生机制对于提高预报精度及海岸带防护有着重要意义。为研究全日潮海域风暴潮增水中的全日扰动和半日扰动,对Horsburgh与Wilson的风暴潮余水位模型进行了改进和扩展,建立了包括多个分潮的余水位分解方法并将其应用于防城港站,对台风"启德"和"山神"影响下的潮位过程进行了分析。结果显示,建立的余水位的分解方法对于全日分潮和半日分潮有良好的适用性。由于高频分潮产生机制的复杂性,该方法对高频分潮应用尚需进一步研究。在全日潮的防城港海域,全日扰动与半日扰动具有相同的量级,二者的和约占总增水的15%~19%。台风过程不同,相位变化项和局地变化项对增水的贡献有较大差异。
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| 关 键 词： | 防城港 风暴潮 全日扰动 半日扰动 调和分析 |
Diurnal perturbation and semidiurnal perturbation in storm surge in diurnal tidal zone |
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| LI Yichun,LIU Jingui and DONG Dexin.Diurnal perturbation and semidiurnal perturbation in storm surge in diurnal tidal zone[J].Ocean Engineering,2016,34(5):51-56. |
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| Authors: | LI Yichun LIU Jingui and DONG Dexin |
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| Abstract: | Storm surge is the fundamental problem of tide-surge interaction and surge forecast. The mechanism of peak residual of sea level(PRSL) shows great significance to forecast precision and coastal defense. In order to investigate diurnal perturbation and semidiurnal perturbation in diurnal tidal zone, the model of peak residual of sea level provided by Horsburgh and Wilson (2007) was modified and extended. The new method of PRSL seperation includes different tide constituents. The application of the new method in the Fangchenggang zone shows that this method could be satisfactory while diurnal and semi diurnal constituents are considered simultaneously. When applied to high-frequency tidal constitutes, this method seems to be limited due to the complex mechanism of high-frequency tidal constituents. In the Fangchenggang zone, the surges due to diurnal perturbation and semidiurnal perturbation are of nearly the same order. They could account for 15%~19% in the total PRSL. Corresponding to different storms, the contributions of phase altered tide and local surge modulation may change substantially. |
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| Keywords: | Fangchenggang storm surge diurnal perturbation semidiurnal perturbation harmonic analysis |
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