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Terdiurnal migrating-tide signature in ionospheric total electron content
Luan, Xiaoli; Dou, Xiankang; Lei, Jiuhou; Jiang, Guoying; Dou, XK (reprint author), Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Geospace Environm, 96 Jin Zhai Rd, Hefei 230026, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2012
Volume117Pages:A11302
ISSN0148-0227
Language英语
AbstractWe report the latitudinal, seasonal and solar cycle variations of terdiurnal migrating tide (i.e., terdiurnal westward wave number 3, TW3) signature in ionospheric total electron content (TEC). Our investigations are based on the JPL global ionospheric maps (GIMs) during 1999-2011. The absolute amplitude of TW3 exhibits maximum values in the magnetic equatorial region, which reaches about 8 TECu under high solar activity and 1.5 TECu under low solar activity. The relative amplitude of zonal mean TEC in equatorial region, however, shows persistent patterns from 1999 to 2011 with little solar activity dependence. The relative amplitude of TW3 has a peak of similar to 10% in the magnetic equatorial region and a second one of similar to 7% at magnetic middle latitudes (30 degrees-50 degrees). At high latitudes in local winter seasons, the maximum relative amplitude occurs, which varies between 8 and 15% with slightly larger amplitudes in the Northern Hemisphere. The global structure of TW3 signature in TEC should shed some light on the coupling between the ionosphere-thermosphere and the lower atmosphere.; We report the latitudinal, seasonal and solar cycle variations of terdiurnal migrating tide (i.e., terdiurnal westward wave number 3, TW3) signature in ionospheric total electron content (TEC). Our investigations are based on the JPL global ionospheric maps (GIMs) during 1999-2011. The absolute amplitude of TW3 exhibits maximum values in the magnetic equatorial region, which reaches about 8 TECu under high solar activity and 1.5 TECu under low solar activity. The relative amplitude of zonal mean TEC in equatorial region, however, shows persistent patterns from 1999 to 2011 with little solar activity dependence. The relative amplitude of TW3 has a peak of similar to 10% in the magnetic equatorial region and a second one of similar to 7% at magnetic middle latitudes (30 degrees-50 degrees). At high latitudes in local winter seasons, the maximum relative amplitude occurs, which varies between 8 and 15% with slightly larger amplitudes in the Northern Hemisphere. The global structure of TW3 signature in TEC should shed some light on the coupling between the ionosphere-thermosphere and the lower atmosphere.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3203
Collection空间科学部
Corresponding AuthorDou, XK (reprint author), Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Geospace Environm, 96 Jin Zhai Rd, Hefei 230026, Peoples R China.
Recommended Citation
GB/T 7714
Luan, Xiaoli,Dou, Xiankang,Lei, Jiuhou,et al. Terdiurnal migrating-tide signature in ionospheric total electron content[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2012,117:A11302.
APA Luan, Xiaoli,Dou, Xiankang,Lei, Jiuhou,Jiang, Guoying,&Dou, XK .(2012).Terdiurnal migrating-tide signature in ionospheric total electron content.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,117,A11302.
MLA Luan, Xiaoli,et al."Terdiurnal migrating-tide signature in ionospheric total electron content".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 117(2012):A11302.
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