摘要
为了分析黄海沿岸历史风暴潮的特征规律,本文基于黄海沿岸9个长期潮位观测站的历史水位资料,提取风暴潮事件,将原始水位序列分离出天文潮成分和非潮余水位成分,对非潮余水位进行统计分析,发现其能量在半日、全日频率区间较为集中;统计每个风暴潮事件中,最大非潮余水位出现的潮汐相位,发现出现在涨、落潮期间的概率显著高于高、低潮位期间的概率;进一步将最大非潮余水位和偏斜增水进行对比,发现二者之间离散程度较高。以上这些现象均表明,从长期尺度上,所分析的黄海沿岸各站位均存在显著的天文潮-风暴潮非线性相互作用,尤其是在水深较浅、潮差较大的区域。
Based on the long-term water level measurements at 9 selected tidal gauges along the Yellow Sea coast,storm events are extracted and the characteristics of history storm surges are analyzed.Non-tidal residual water levels are separated from original water level time series based on tide harmonic analysis.The energy of residual water level are found to concentrate on diurnal and semi-diurnal frequencies.We also analyze the tidal phases when the peak non-tidal residuals occurred,and found that the they occurred much more frequently in the flood and ebb phase compared with the high/low tide phase.We further compared the maximum non-tidal residuals and the skew surge values,and found significant deviations.All the above results suggest that significant tide-surge nonlinear interactions exist in the tidal gauges investigated,from a long-term view.The nonlinear interactions are more significant when the water depth are shallow and the tidal range is large.
作者
尤晓昳
武国相
梁丙臣
刘仕潮
You Xiaoyi;Wu Guoxiang;Liang Bingchen;Liu Shichao(College of Engineering,Ocean University of China,Qingdao 266100,China;Shandong Provincal Key Laboratory of Ocean Engineering,Qingdao 266100,China;National Marine Environmental Forecasting Center,Beijing 10081,China)
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2022年第8期77-88,共12页
Periodical of Ocean University of China
基金
国家自然科学基金项目(52071305,51739010)资助。
关键词
风暴潮
黄海
天文潮-风暴潮相互作用
调和分析
余水位
storm surge
the Yellow Sea
tide-surge interaction
harmonic analysis
residual water level
