Global characteristics of occurrence of an additional layer in the ionosphere observed by COSMIC/FORMOSAT-3

	Global characteristics of occurrence of an additional layer in the ionosphere observed by COSMIC/FORMOSAT-3
	Zhao, Biqiang; Wan, Weixing; Yue, Xinan; Liu, Libo; Ren, Zhipeng; He, Maosheng; Liu, Jing
刊名	GEOPHYSICAL RESEARCH LETTERS
	2011
卷号	38 页码:L02101
ISSN号	0094-8276
通讯作者	Zhao, BQ (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 10029, Peoples R China.
中文摘要	Global observations of electron density profile (EDP) from the COSMIC/FORMOSAT-3 satellites were used to investigate, for the first time, the additional stratification of the F2 layer over the equatorial ionosphere on a global scale, which is called F3 layer. The F3 layer in EDP was recognized through the altitude differential profile featured by two maxima existing from 220 km to the peak height of the electron density. There were similar to 9,400 cases of F3 layer selected out of similar to 448, 000 occultation events at low and equatorial areas during the period of April 2006-September 2010. Statistical results show that the highest occurrence of F3 layer appears at dip latitude 7 similar to 8 degrees/-7 similar to-8 degrees for Northern/Southern Hemisphere and is more pronounced during summer months at 10:00-14:00 LT. The occurrence also has a clear longitude dependence during boreal summer, with relatively higher occurrence at -80 similar to-100 degrees, -20 similar to 20 degrees, 80 similar to 120 degrees and -160 similar to-170 degrees longitudes, that is possibly associated with the wavenumber-3 diurnal tide (DE3). The results support the principle of the F3 layer proposed by Balan et al. (1998), which in turn validate the accuracy of the retrieval of the COSMIC EDP data. Citation: Zhao, B., W. Wan, X. Yue, L. Liu, Z. Ren, M. He, and J. Liu (2011), Global characteristics of occurrence of an additional layer in the ionosphere observed by COSMIC/FORMOSAT-3, Geophys. Res. Lett., 38, L02101, doi:10.1029/2010GL045744.
英文摘要	Global observations of electron density profile (EDP) from the COSMIC/FORMOSAT-3 satellites were used to investigate, for the first time, the additional stratification of the F2 layer over the equatorial ionosphere on a global scale, which is called F3 layer. The F3 layer in EDP was recognized through the altitude differential profile featured by two maxima existing from 220 km to the peak height of the electron density. There were similar to 9,400 cases of F3 layer selected out of similar to 448, 000 occultation events at low and equatorial areas during the period of April 2006-September 2010. Statistical results show that the highest occurrence of F3 layer appears at dip latitude 7 similar to 8 degrees/-7 similar to-8 degrees for Northern/Southern Hemisphere and is more pronounced during summer months at 10:00-14:00 LT. The occurrence also has a clear longitude dependence during boreal summer, with relatively higher occurrence at -80 similar to-100 degrees, -20 similar to 20 degrees, 80 similar to 120 degrees and -160 similar to-170 degrees longitudes, that is possibly associated with the wavenumber-3 diurnal tide (DE3). The results support the principle of the F3 layer proposed by Balan et al. (1998), which in turn validate the accuracy of the retrieval of the COSMIC EDP data. Citation: Zhao, B., W. Wan, X. Yue, L. Liu, Z. Ren, M. He, and J. Liu (2011), Global characteristics of occurrence of an additional layer in the ionosphere observed by COSMIC/FORMOSAT-3, Geophys. Res. Lett., 38, L02101, doi:10.1029/2010GL045744.
学科主题	空间物理
收录类别	SCI ; EI
资助信息	National Natural Science Foundation of China [40804041]; National Important Basic Research Project of China [2011CB811400]; State Key Laboratory of Space Weather, Chinese Academy of Sciences
语种	英语
公开日期	2014-12-15
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/3084]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Zhao, Biqiang,Wan, Weixing,Yue, Xinan,et al. Global characteristics of occurrence of an additional layer in the ionosphere observed by COSMIC/FORMOSAT-3[J]. GEOPHYSICAL RESEARCH LETTERS,2011,38:L02101.
APA	Zhao, Biqiang.,Wan, Weixing.,Yue, Xinan.,Liu, Libo.,Ren, Zhipeng.,...&Liu, Jing.(2011).Global characteristics of occurrence of an additional layer in the ionosphere observed by COSMIC/FORMOSAT-3.GEOPHYSICAL RESEARCH LETTERS,38,L02101.
MLA	Zhao, Biqiang,et al."Global characteristics of occurrence of an additional layer in the ionosphere observed by COSMIC/FORMOSAT-3".GEOPHYSICAL RESEARCH LETTERS 38(2011):L02101.