Midnight density maximum in the thermosphere from the CHAMP observations

doi:10.1002/2013JA019566

	Midnight density maximum in the thermosphere from the CHAMP observations
	Ruan, Haibing 1,2; Lei, Jiuhou 1,2; Dou, Xiankang 1,2; Wan, Weixing 1,3; Liu, Yong C-M.4
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2014-05-01
卷号	119 期号:5 页码:3741-3746
关键词	nighttime enhancement thermosphere
ISSN号	2169-9380
DOI	10.1002/2013JA019566
文献子类	Article
英文摘要	The midnight temperature maximum (MTM) is generally believed to occur over the equatorial region, while a few recent studies suggested the extension of the MTM to middle and high latitudes. In this paper, we investigate the latitudinal variations of nighttime thermospheric density on the basis of the accelerometer measurement onboard the CHAMP satellite during 2002-2009. The sampling of the CHAMP satellite allows for observation of a statistical average of the midnight density maximum (MDM). From these observations, it was found that the MDM of the thermosphere, a manifestation of the MTM, occurs in all seasons at both low and high solar activities, but its features vary significantly with season and solar activity. The peak of the MDM over the equatorial region occurs at similar to 01:00 LT under the low solar activity condition, whereas it happens about 1-2h earlier at high solar activity. We observe extension of the MDM from the equatorial region to southern midlatitudes, especially under the low solar activity condition.
WOS关键词	EQUATORIAL THERMOSPHERE ; TEMPERATURE MAXIMUM ; MILLSTONE HILL ; F-REGION ; DYNAMICS ; ARECIBO ; MODEL
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000337622100037
资助机构	National Natural Science Foundation of China(41325017 ; National Natural Science Foundation of China(41325017 ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; National Key Basic Research Program of China(2012CB825605) ; National Key Basic Research Program of China(2012CB825605) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; 41274157 ; 41274157 ; 41174139 ; 41174139 ; 41104107 ; 41104107 ; 41121003 ; 41121003 ; 41025016) ; 41025016) ; National Natural Science Foundation of China(41325017 ; National Natural Science Foundation of China(41325017 ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; National Key Basic Research Program of China(2012CB825605) ; National Key Basic Research Program of China(2012CB825605) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; 41274157 ; 41274157 ; 41174139 ; 41174139 ; 41104107 ; 41104107 ; 41121003 ; 41121003 ; 41025016) ; 41025016) ; National Natural Science Foundation of China(41325017 ; National Natural Science Foundation of China(41325017 ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; National Key Basic Research Program of China(2012CB825605) ; National Key Basic Research Program of China(2012CB825605) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; 41274157 ; 41274157 ; 41174139 ; 41174139 ; 41104107 ; 41104107 ; 41121003 ; 41121003 ; 41025016) ; 41025016) ; National Natural Science Foundation of China(41325017 ; National Natural Science Foundation of China(41325017 ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; Project of Chinese Academy of Sciences(KZZD-EW-01) ; National Key Basic Research Program of China(2012CB825605) ; National Key Basic Research Program of China(2012CB825605) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(XDA04060201) ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; Hundred Talented Program of Chinese Academy(Y32135A47S) ; 41274157 ; 41274157 ; 41174139 ; 41174139 ; 41104107 ; 41104107 ; 41121003 ; 41121003 ; 41025016) ; 41025016)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84882]
专题	中国科学院地质与地球物理研究所
通讯作者	Dou, Xiankang
作者单位	1.Univ Sci & Technol China, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China 2.Univ Sci & Technol China, Mengcheng Natl Geophys Observ, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 4.Chinese Acad Sci, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ruan, Haibing,Lei, Jiuhou,Dou, Xiankang,et al. Midnight density maximum in the thermosphere from the CHAMP observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2014,119(5):3741-3746.
APA	Ruan, Haibing,Lei, Jiuhou,Dou, Xiankang,Wan, Weixing,&Liu, Yong C-M..(2014).Midnight density maximum in the thermosphere from the CHAMP observations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,119(5),3741-3746.
MLA	Ruan, Haibing,et al."Midnight density maximum in the thermosphere from the CHAMP observations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 119.5(2014):3741-3746.