河口挡潮闸闸下低潮缺失水位修正方法

发布时间：2019-06-14 00:14

【摘要】：河口挡潮闸闸下低潮水位资料周期性缺失可能导致闸下潮汐调和分析结果出现偏差,从而直接影响到闸下水位过程的预报精度。针对这一问题,提出了一种闸下低潮缺失水位的修正方法,利用潮汐过程曲线的对称性对低潮缺失水位资料进行初步修正,然后根据调和分析自报结果对修正数据进行迭代更新,直至潮汐调和常数不再变化。验证结果表明,该方法可有效提高闸下水位过程的自报精度,其成果在2014年宁波高背浦闸闸下测站的潮汐预报中得到了良好应用。
[Abstract]:The periodic lack of low tide water level data under the gate may lead to the deviation of the harmonic analysis results of the tide under the gate, which directly affects the prediction accuracy of the water level process under the gate. In order to solve this problem, a correction method of low tide missing water level under sluice is proposed. The data of low tide missing water level are preliminarily modified by using the symmetry of tidal process curve, and then the modified data are updated iteratively according to the self-reported results of harmonic analysis until the tidal harmonic constant does not change. The verification results show that this method can effectively improve the self-reporting accuracy of the lower gate water level process, and its results have been well applied in the tide prediction of Ningbo Gaobupu sluice station in 2014.
【作者单位】：河海大学港口海岸与近海工程学院水文水资源与水利工程科学国家重点实验室;
【基金】：江苏省水利科技重点项目(2015006)
【分类号】：TV124;TV66

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