强海况下波流相互作用对有效波高的影响研究  

The study of the influences of wave-current interaction on significant wave height under serious sea conditions

作　　者：孟凡昌[1,2] 李本霞 Meng Fanchang;Li Benxia(National Marine Environmental Forecasting Center,Beijing 100081,China;Key Laboratory of Marine Hazards Forecasting,National Marine Environmental Forecasting Center,Ministry of Natural Resources,Beijing 100081,China;College of Oceanography,Hohai University,Nanjing 210024,China)

机构地区：[1]国家海洋环境预报中心,北京100081 [2]自然资源部海洋灾害预报技术重点实验室,北京100081 [3]河海大学海洋学院,江苏南京210024

出　　处：《海洋学报》2023年第7期1-7,共7页

基　　金：国家重点研发计划(2017YFA0604901)。

摘　　要：波流相互作用作为非线性科学的前沿课题,一直受到国内外广大学者的关注。本文以2016年第1号超强台风“尼伯特”为例,基于波流耦合模式研究了台风影响期间强海况下波流相互作用对有效波高的影响。研究表明:(1)波流耦合模式可有效提高强海况下海浪的模拟精度;(2)波流相互作用对有效波高的影响与波向和流向之间的夹角关系密切:当波向与流向大致相同时,波流相互作用使有效波高减小;当波向与流向大致相反时,波流相互作用使有效波高增大;当波向与流向之间的夹角越接近90°时,波流相互作用对有效波高的影响越小。波流相互作用对有效波高的影响最大可达1.5 m。As a frontier subject of nonlinear science,wave-current interaction has been studied by many scholars.This paper will explore the wave-current interaction under the serious sea conditions in the Northwest Pacific during the influenced by No.1 super Typhoon“Nepartak”in 2016.The results indicate that wave-current coupling model can effectively improve the simulation accuracy of significant wave height(SWH)under serious sea conditions.The influence of wave-current interaction on SWH is closely related to the angle between wave direction and sea surface current direction:when wave direction is close to current direction,wave-current interaction will decrease the SWH;in those areas where the wave and the current have the opposite direction,wave-current interaction will increase the SWH;the closer the angle between the wave and the current is to 90°,the less influence wave-current interaction has on the SWH.The maximum SWH difference whether including wave-current interaction or not is about 1.5 m.

关 键 词：强海况 波流相互作用 耦合模式 有效波高 

分 类 号：P731.22[天文地球—海洋科学]