Investigation of Total Absorption of Radio Waves in High Latitude Ionosphere  

作　　者：史建魁 王铮 陶伟 G.A.ZHEREBTSOV E.B.ROMANOVA K.G.RATOVSKY 

机构地区：[1]State Key Laboratory of Space Weather, NSSC/CAS [2]Institute of Solar-Terrestrial Physics, SB/RAS, Irkutsk 664033, Russia

出　　处：《Plasma Science and Technology》2014年第9期833-836,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(No.41274146);the Specialized Research Fund for State Key Laboratories of China

摘　　要：Using the digisonde data observed at ionospheric station Norilsk （Dip lat. 60~N） in 2006, a statistical study on the characteristics of the ionospheric plasma total absorption of radio waves （IPTAR） was performed. In the winter and some months of equinox, the IPTAR mainly occurred in the nighttime and the highest occurrence rate could be up to 90%. In the summer, the occurrence was relatively low and the differences between nighttime and daytime occurrence reduced. The total duration of IPTAR seemed longer around the winter than that around the summer. The occurrence of IPTAR events ascended as the Kp index increased. The frequent precipitation of energetic particles into the ionospheric plasma in the auroral belt may be the main cause of the IPTAR events.Using the digisonde data observed at ionospheric station Norilsk （Dip lat. 60~N） in 2006, a statistical study on the characteristics of the ionospheric plasma total absorption of radio waves （IPTAR） was performed. In the winter and some months of equinox, the IPTAR mainly occurred in the nighttime and the highest occurrence rate could be up to 90%. In the summer, the occurrence was relatively low and the differences between nighttime and daytime occurrence reduced. The total duration of IPTAR seemed longer around the winter than that around the summer. The occurrence of IPTAR events ascended as the Kp index increased. The frequent precipitation of energetic particles into the ionospheric plasma in the auroral belt may be the main cause of the IPTAR events.

关 键 词：IONOSPHERE radio waves total absorption 

分 类 号：TN011.2[电子电信—物理电子学]