武汉和阿德莱德大气太阴N_2潮及M_2潮的对比分析  

Contrast analysis of the lunar atmospheric M_2 and N_2 tides in Wuhan and Adelaide

作　　者：牛晓娟[1] 熊建刚[2] 涂亚芳[1] 柯璇[1] 

机构地区：[1]江汉大学物理与信息工程学院,武汉430056 [2]中国科学院地质与地球物理研究所中国科学院电离层空间环境重点实验室,北京100029

出　　处：《地球物理学报》2014年第9期2743-2750,共8页Chinese Journal of Geophysics

基　　金：国家自然科学青年基金项目(41104095);中国科学院重点部署项目课题(KZZD-EW-01-3);973项目课题(2012CB825604)资助

摘　　要：利用阿德莱德（35°S,138°E）和武汉（30.6°N,114.5°E）的流星雷达观测数据首次给出了80-100 km高度上周期为12.66太阳时的大气太阴半日潮汐（N2潮）的季节、高度、年度变化及其与周期为12.42太阳时的大气太阴半日潮汐（M2潮）的对比分析.分析结果表明：武汉和阿德莱德的N2潮和M2潮均有明显的季节、高度和年度变化.N2潮与M2潮的幅度比值大于其引力势之比0.191,在某些年份的不同季节和高度上,N2潮的幅度甚至大于M2潮的幅度.大多幅度之比接近或超过N2潮和M2潮引力势之比的2倍.中低热层的大气太阴N2潮汐值得关注.Using the several years observed data of the Adelaide（35°S,138°E）and Wuhan（30.6°N,114.5°E）meteor radars,the seasonal,height and year-to-year variations of the 12.66 h lunar tide（N2 tide）at 80~100 km were presented for the first time.The results showed that the N2 tide and the 12.42 h lunar tide（M2 tide）both have clear seasonal,height and year-to-year variations in Wuhan and Adelaide.The amplitude ratio of the N2 to M2 tide is larger than the ratio value0.191 of their gravitational potential.In different season and height of some years,the amplitude of the N2 tide is even larger than that of M2 tide.The ratio values of many types of amplitude are close to or exceed the double of the ratio of their gravitational potential.The N2 lunar atmosphere tide at the middle-lower thermosphere layer is worth paying attention.

关 键 词：太阴潮汐 雷达 M2潮 N2潮 幅度比 

分 类 号：P351[天文地球—空间物理学]