Comparison between the Mesospheric Winds Observed by Two Collocated Meteor Radars at Low Latitudes

Remote Sensing

Iain Reid¹  Jie Zeng²  Xiankang Dou²  Xianghui Xue²  Tingdi Chen²  Wen Yi²  Jinsong Chen³  Xiaojing Hao³  Na Li³ 

[1] ATRAD Pty Ltd., Thebarton, Adelaide, SA 5031, Australia;CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences, University of Science and Technology of China, Hefei 230026, China;National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266000, China;

关键词: meteor radar;    mesospheric winds;    angular deviation;   

DOI  :  10.3390/rs14102354

来源: DOAJ

【 摘 要 】

This study compares the hourly mesospheric horizontal winds observed by two collocated and independent low-latitude meteor radars operating at 37.5 MHz and 53.1 MHz in Kunming, China (25.6°N, 103.8°E). Upon analyzing simultaneously detected meteor echoes, we find a fixed angular deviation between the baselines of the two meteor radar antenna arrays within the east–north–up coordinate system. Then, we correct the deviation in the antenna azimuth direction using a novel method and recalculate the horizontal zonal and meridional winds. A comparison of the results before and after the correction shows strong consistency between the winds observed by both meteor radars within the entire detection altitude range. Furthermore, we summarize the performance of different techniques for measuring mesospheric winds. Ultimately, our statistical analysis approach allows the uncertainties associated with meteor radar wind observations to be more precisely estimated.

【 授权许可】

Unknown