Case study of simultaneous observations of sporadic sodium layer, E-region field-aligned irregularities and sporadic E layer at low latitude of China

	Case study of simultaneous observations of sporadic sodium layer, E-region field-aligned irregularities and sporadic E layer at low latitude of China
	Xie, H. Y.; Ning, B. Q.; Zhao, X. K.; Hu, L. H.; Xie, HY (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China.
刊名	ADVANCES IN SPACE RESEARCH
	2017
卷号	59 期号:6 页码:1559-1567
关键词	Sporadic e Layer Ionospheric Irregularities Sporadic Sodium Layer Ion Chemistry And compositIon Atmospheric Dynamics
ISSN号	0273-1177
英文摘要	Using the Na lidar at Haikou (20.0 degrees N, 110.3 degrees E), the VHF coherent radar and the digital ionosonde both at Sanya (18.4 degrees N,109.6 degrees E), cases of simultaneous observations of sporadic sodium layer (SSL), E-region field-aligned irregularities (FAI) and sporadic E layer (Es) in the mesosphere and lower thermosphere (MLT) region at low latitude of China are studied. It is found that SSL occurs simultaneously or follows the enhancement of Es and FAI. The Es, FAI and SSL descend slowly with time which is mostly controlled by the diurnal tide (DT). Besides, the interaction of gravity wave (GW) with tides can cause oscillations in FAI and SSL. Our observations support the neutralization of ions for SSL formation: when the metallic ions layer descents to the altitudes where models predict, the sodium ions convert rapidly to atomic Na that may form an SSL event. Moreover, the SSL peak density will increase (decrease) in the convergence (divergence) vertical shear region of zonal wind. (C) 2016 COSPAR. Published by Elsevier Ltd. All rights reserved.
语种	英语
资助机构	Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China [41374164, 41574149, 41422404, 41204113, 41127003] ; CAS Key Technology Talent Program
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6111]
专题	国家空间科学中心_空间科学部
通讯作者	Xie, HY (reprint author), 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	Xie, H. Y.,Ning, B. Q.,Zhao, X. K.,et al. Case study of simultaneous observations of sporadic sodium layer, E-region field-aligned irregularities and sporadic E layer at low latitude of China[J]. ADVANCES IN SPACE RESEARCH,2017,59(6):1559-1567.
APA	Xie, H. Y.,Ning, B. Q.,Zhao, X. K.,Hu, L. H.,&Xie, HY .(2017).Case study of simultaneous observations of sporadic sodium layer, E-region field-aligned irregularities and sporadic E layer at low latitude of China.ADVANCES IN SPACE RESEARCH,59(6),1559-1567.
MLA	Xie, H. Y.,et al."Case study of simultaneous observations of sporadic sodium layer, E-region field-aligned irregularities and sporadic E layer at low latitude of China".ADVANCES IN SPACE RESEARCH 59.6(2017):1559-1567.