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A case study of postmidnight enhancement in F-layer electron density over Sanya of China

文献类型：期刊论文

作者Liu, Libo1,2; Chen, Yiding1; Le, Huijun1; Ning, Baiqi1; Wan, Weixing1; Liu, Jing1; Hu, Lianhuan1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2013-07-01
卷号118期号:7页码:4640-4648
关键词ionosphere low latitude nighttime enhancement electron density electric field post-midnighttime enhancement
ISSN号2169-9380
DOI10.1002/jgra.50422
文献子类Article
英文摘要The electron density in the ionospheric F region occasionally stops its decay and rises pronouncedly during night hours, which are termed ionospheric nighttime enhancements. In this case study, we analyzed the manually scaled ionogram records measured by a Lowell DPS-4D ionosonde operated at Sanya (18.3 degrees N, 109.6 degrees E), China, to explore postmidnight enhancement events occurred in 2012, a year of moderate solar activities. Common features in these cases illustrate that, accompanying nighttime rises in peak electron density of F2 layer (NmF2), the height of F2 layer is depressed significantly, and the ionogram-derived electron density height profiles become thinner. There are time shifts in the development of electron density enhancements in the F layer; that is, enhancement develops earlier and reaches peaks earlier at higher altitudes than at lower altitudes. Meanwhile, plasma drift is detected downward under such events, revealing the essential role of the westward electric field in forming the postmidnight enhancements in electron density of ionospheric F layer at such low latitudes.
WOS关键词NIGHTTIME ENHANCEMENTS ; REAL-TIME ; IONOSPHERE ; INCREASES ; NMF2 ; IONIZATION ; DIGISONDE ; REGION ; SOLAR ; TEC
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000325073600061
出版者AMER GEOPHYSICAL UNION
资助机构Chinese Academy of Sciences(KZZD-EW-01-3) ; Chinese Academy of Sciences(KZZD-EW-01-3) ; National Key Basic Research Program of China(2012CB825604) ; National Key Basic Research Program of China(2012CB825604) ; National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; 41174137 ; 41174137 ; 41074112) ; 41074112) ; Chinese Academy of Sciences(KZZD-EW-01-3) ; Chinese Academy of Sciences(KZZD-EW-01-3) ; National Key Basic Research Program of China(2012CB825604) ; National Key Basic Research Program of China(2012CB825604) ; National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; 41174137 ; 41174137 ; 41074112) ; 41074112) ; Chinese Academy of Sciences(KZZD-EW-01-3) ; Chinese Academy of Sciences(KZZD-EW-01-3) ; National Key Basic Research Program of China(2012CB825604) ; National Key Basic Research Program of China(2012CB825604) ; National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; 41174137 ; 41174137 ; 41074112) ; 41074112) ; Chinese Academy of Sciences(KZZD-EW-01-3) ; Chinese Academy of Sciences(KZZD-EW-01-3) ; National Key Basic Research Program of China(2012CB825604) ; National Key Basic Research Program of China(2012CB825604) ; National Natural Science Foundation of China(41231065 ; National Natural Science Foundation of China(41231065 ; 41174137 ; 41174137 ; 41074112) ; 41074112)
源URL[http://ir.iggcas.ac.cn/handle/132A11/87404]  
专题中国科学院地质与地球物理研究所
通讯作者Liu, Libo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Ionospher Environm, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Libo,Chen, Yiding,Le, Huijun,et al. A case study of postmidnight enhancement in F-layer electron density over Sanya of China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2013,118(7):4640-4648.
APA Liu, Libo.,Chen, Yiding.,Le, Huijun.,Ning, Baiqi.,Wan, Weixing.,...&Hu, Lianhuan.(2013).A case study of postmidnight enhancement in F-layer electron density over Sanya of China.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,118(7),4640-4648.
MLA Liu, Libo,et al."A case study of postmidnight enhancement in F-layer electron density over Sanya of China".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 118.7(2013):4640-4648.

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来源：地质与地球物理研究所

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