HFSWR海洋-电离层一体化探测实验与数据分析  

Detection experiment and data analysis of ocean-ionosphere integration using HFSWR

作　　者：吕哲[1] 于长军[1] 王霖玮 王榕 陈学坤 崔娜[1] 宋圳 LYU Zhe;YU Changjun;WANG Linwei;WANG Rong;CHEN Xuekun;CUI Na;SONG Zhen(Harbin Institute of Technology(Weihai),Weihai 264200,China)

机构地区：[1]哈尔滨工业大学(威海),山东威海264200

出　　处：《海洋信息技术与应用》2024年第2期87-97,共11页JOURNAL OF MARINE INFORMATION TECHNOLOGY AND APPLICATION

基　　金：国家自然科学基金(62031015,61971159);山东省自然科学基金青年项目(ZR2023QF118)。

摘　　要：高频地波雷达(High-frequency Surface Wave Radar,HFSWR)凭借其全天时、全天候和超视距探测等方面的能力,在海洋遥感与电离层探测应用方面均取得了阶段性进展,然而当前在海洋-电离层回波联合方面的研究还十分有限。本文基于哈尔滨工业大学(威海)HFSWR一体化探测系统,对台风“梅花”过境渤海湾期间的海洋回波与电离层回波进行了数据分析。首先对HFSWR一体化探测系统的整体构成进行了介绍,之后基于Bragg原理对海洋回波进行了海洋径向流速分析,并采用经验模态分解以及HHT变换方法对电离层回波进行能量谱分析。实验结果表明,在台风“梅花”过境期间,海洋回波与电离层回波均出现了明显的特征变化,两者之间存在一定的联动机制。本文提出了进一步研究海洋与电离层之间动力学关系的需要,并强调了HFSWR一体化探测系统的独特体制在海洋-电离层联合研究方面的优势。High-frequency Surface Wave Radar(HFSWR),due to its all-weather,all-day,and over-the-horizon capabilities,has made great progress in both ocean remote sensing and ionospheric exploration.However,the research on the joint study of ocean-ionosphere echoes is still limited at the moment.Based on the integrated HFSWR detection system of Harbin Institute of Technology(Weihai),this study analyzes the ocean and ionospheric echoes during the transit of Typhoon Meihua in Bohai Bay.First,the overall composition of the integrated HFSWR system is introduced.Subsequently,the ocean radial flow velocity is analyzed based on Bragg principle,and the energy spectrum of the ionospheric echoes is analyzed by empirical mode decomposition and HHT transformation.The experimental results show that during Typhoon Meihua,both ocean and ionospheric echoes have significant characteristic changes,suggesting the presence of a certain interconnection mechanism between them.The study highlights the need for further research on the dynamical interactions between the ocean and the ionosphere,while emphasizing the advantages of the unique system of the integrated HFSWR detection system in the joint research of ocean and ionosphere.

关 键 词：高频地波雷达 海洋-电离层一体化探测 台风“梅花” 数据分析 

分 类 号：P738[天文地球—海洋地质] P352.7[天文地球—海洋科学]