利用多年实测波浪资料,选取4个台风和6个寒潮大浪过程,采用统计分析的方法得到极端天气条件下的特征波要素、波浪谱及其变化特性,研究江苏北部海域台风和寒潮影响下的大浪特征。研究结果表明：台风浪的过程最大值和寒潮大浪量值相当,有效波高分别为4.59和4.73 m;登陆型台风产生的台风浪远大于非登陆型台风;大浪过程中较大的波高对应较大的周期,波浪谱以单峰谱为主,均存在风浪和涌浪。
Abstract
Based on long-term wave measurements in the northern sea area of Jiangsu Province, this study statistically analyzed four typhoon events and six cold wave processes to investigate wave characteristics under extreme weather conditions. The results demonstrate that the maximum wave heights induced by typhoons and cold waves are comparable, with significant wave heights reaching 4.59 and 4.73 m respectively. The typhoon waves generated by landfall typhoons are much greater than those of non-landfall typhoons. A positive correlation is observed between wave height and period during extreme wave events, and the wave spectrum is mainly single-peak spectrum, and both wind waves and swell waves exist.
关键词
波浪谱 /
风浪 /
涌浪 /
台风浪 /
寒潮大浪 /
江苏北部海域
Key words
wave spectra /
wind sea /
swell /
typhoon wave /
cold wave /
northern sea area of Jiangsu
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基金
国家重点研发计划（2023YFC3008100）
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