Detection experiment and data analysis of ocean-ionosphere integration using HFSWR
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.
High Frequency Surface Wave Radarintegrated ocean-ionosphere detectiontyphoon'Muifa'data analysis