Observations of Evolution-Type Band-Like Structures of F Region Irregularities

doi:10.1029/2018JA026091

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	Observations of Evolution-Type Band-Like Structures of F Region Irregularities
	Meng, Xing 1; Fang, Hanxian 1; Li, Guozhu 2,3; Weng, Libin 1; Wang, Sicheng 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2019-02-01
卷号	124 期号:2 页码:1426-1443
ISSN号	2169-9380
DOI	10.1029/2018JA026091
英文摘要	Generally, equatorial spread-F (ESF) irregularities initiated at the bottom of the ionospheric F region and manifested as plume structures with an altitude extent more than 50 km in the RTI (range-time-intensity) plot. By using the Fuke and Sanya VHF radars located at low latitude of China, evolution-type band-like structures of ESF irregularities were observed near local sunset. One interesting aspect is that the ESF band-like structures initially appeared at high altitudes more than 400 km and then uplifted to higher altitude without zonal propagation. The lifetime of these ESF band-like structures, with a similar pattern in the RTI plot for each beam of radar, is less than 25 min. The band-like structures of F region irregularities were observed with big Doppler velocities and narrow spectral widths. During the presence of ESF band-like structures, apparent amplitude scintillations (S4 > 0.2), total electron content (TEC) fast fluctuations (ROTI > 1), and range-type spread F were detected. Possible mechanisms responsible for the initial generation of band-like ESF irregularities at high altitude are discussed.
资助项目	National Natural Science Foundation of China[40505005] ; National Natural Science Foundation of China[41804149]
WOS关键词	EQUATORIAL ATMOSPHERE RADAR ; GRAVITY-WAVE INITIATION ; SPREAD-F ; BACKSCATTER PLUMES ; PLASMA BUBBLES ; STATISTICAL CHARACTERISTICS ; POSTSUNSET VORTEX ; DRIFTS ; ONSET ; EAR
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000462015700039
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/91081]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者	Fang, Hanxian
作者单位	1.Natl Univ Def & Tecnnol, Inst Meteorol & Oceanog, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Meng, Xing,Fang, Hanxian,Li, Guozhu,et al. Observations of Evolution-Type Band-Like Structures of F Region Irregularities[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019,124(2):1426-1443.
APA	Meng, Xing,Fang, Hanxian,Li, Guozhu,Weng, Libin,&Wang, Sicheng.(2019).Observations of Evolution-Type Band-Like Structures of F Region Irregularities.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,124(2),1426-1443.
MLA	Meng, Xing,et al."Observations of Evolution-Type Band-Like Structures of F Region Irregularities".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 124.2(2019):1426-1443.