摘要
内孤立波是发生在层结海洋内部的一种非线性波动现象,在海洋军事活动、海洋资源开发及海洋工程建设等方面具有重要意义。针对当前班达海内波研究,尤其是内孤立波相关研究相对较少的现状,基于数值模拟方法,开展了班达海内孤立波时间分布特征的研究。通过分析班达海的三维数值模式数据,统计其内孤立波的时间变化规律,结果表明,在小时尺度上,内孤立波的发生时间呈现出明显的半日周期性特征;在旬尺度上,内孤立波的发生时间也表现出周期性变化,主要集中在农历每月初二至初七以及十七至廿二期间。该旬周期特征与班达海的潮汐过程,尤其是在大潮期间内孤立波的生成机制密切相关。
Internal solitary waves are a nonlinear wave phenomenon occurring within the stratified ocean,and they hold significant importance in marine military activities,marine resource development,and marine engineering construction.Given the current scarcity of research on internal waves in the Banda Sea,particularly on internal solitary waves,a study was conducted on the temporal distribution characteristics of internal solitary waves in the Banda Sea using numerical simulation methods.By analyzing three-dimensional numerical model data from the Banda Sea,the temporal variation patterns of internal solitary waves were statistically analyzed.The results indicate that on an hourly scale,the occurrence time of internal solitary waves exhibits a pronounced diurnal periodicity,on a ten-day scale,the occurrence time also demonstrates periodic variations,primarily concentrated between the second and seventh days,and the seventeenth and twenty-second days of each lunar month.This ten-day periodicity is closely related to the tidal processes in the Banda Sea,especially the generation mechanism of internal solitary waves during spring tides.
作者
张恒嘉
ZHANG Hengjia(Ocean University of China,Qingdao,Shandong 266100,China)
关键词
内孤立波
班达海
数值模式
时间分布特征
internal solitary wave
Banda Sea
numerical model
temporal distribution characteristics
