Case study of ionospheric fluctuation over mid-latitude region during one large magnetic storm

查看全文 作　　者：ZHANG [1,2]DongHe;MO [1,3]XiaoHua;A [1]Ercha;HAO [1]YongQiang

机构地区：[1]Department of Geophysics,Peking University,Beijing 100871,China;[2]State Key Laboratory of Space Weather,Chinese Academy of Sciences,Beijing 100080,China;[3]College of Physics and Electronic Engineering,Guangxi University for Nationalities,Nanning 530006,China

出　　处：《Science China(Technological Sciences)》索引2012年第55卷第5期,共9页

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 41174134 and 40904036);the National Basic Research Program of China ('973' Project) (Grant No. 2011CB811405);the State Key Laboratory of Space Weather 摘　　要：From Nov. 6 to 10, 2004, a large number of solar events occurred, which triggered many solar flares and coronal mass ejections (CMEs). These CMEs caused two large geomagnetic storms and continuous energy proton events. During this period, one large positive ionospheric storm happened over the East-Asian region on Nov. 8, 2004. On Nov. 10, 2004, a strong spread-F was observed by the ionosonde located in the mid-latitude region of East China and Japan, and the ionospheric fluctuation over the ionosonde stations derived from GPS observation was also obvious. In this report, the characteristics of the spatial distribution of the ionosphere fluctuation and its temporal evolution are studied using the parameter of the rate of total electron content (ROT) derived from dual-frequency GPS measurement. Strong fluctuating activity of the ionosphere was found over the mid-latitude region in the southern and northern hemispheres between longitudes of 100°E and 180°E during the magnetic storm period on Nov. 10, 2004, and a regular movement of the disturbing region was observed. In the end, the reason of the ionospheric fluctuation during this magnetic storm is analyzed. 关键词：中纬度地区电离层暴波动磁暴日冕物质抛射案例空间分布特征 GPS观测

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Case study of ionospheric fluctuation over mid-latitude region during one large magnetic storm

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