Investigation of a mesospheric bore event over Northern China
作者单位：State Key Laboratory of Space WeatherCenter for Space Science and Applied ResearchChinese Academy of Sciences Graduate University of the Chinese Academy of Sciences Hampton UniversityHamptonVAUSA College of Mathematics and Information ScienceHenan Normal University Beijing National Observatory of Space EnvironmentInstitute of Geology and GeophysicsChinese Academy of Sciences School of Chemistry and PhysicsUniversity of AdelaideAdelaideSouth AustraliaAustralia
会议名称：《中国空间科学学会空间物理学专业委员会第十五届全国日地空间物理学研讨会》
会议日期：2013年
学科分类：070802[理学-空间物理学] 07[理学] 0708[理学-地球物理学]
摘 要：A mesospheric bore event was observed using an OH all-sky airglow imager(ASAI)at Xinglong(40.2oN,117.4oE),in northern China,on the night of 08-09 January *** observations by a Doppler meteor radar,a broadband sodium lidar,and TIMED/SABER OH intensity and temperature measurements are used to investigate the characteristics and environment of the bore propagation and the possible relations with the Na density *** bore propagated from northeast to southwest and divided the sky into bright and dark *** calculations show that the bore has an average phase velocity of 68 m/*** crests following the bore have a horizontal wavelength of2 *** parameters are consistent with the hydraulic jump theory proposed by Dewan and Picard,as well as the previous bore *** wind measurements from the Doppler meteor radar at Shisanling(40.3oN,116.2oE)and temperature data from SABER on board the TIMED satellite are used to characterize the propagating environment of the *** result shows that a Thermal-Doppler duct exists near the OH layer that supports the horizontal propagation of the *** Na lidar observations at Yanqing(40.4°N,116.0°E)suggest that there is a downward displacement of Na density during the passage of the mesospheric bore event.