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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.
Department空间科学部
Source PublicationADVANCES IN SPACE RESEARCH
2017
Volume59Issue:6Pages:1559-1567
ISSN0273-1177
Language英语
KeywordSporadic e Layer Ionospheric Irregularities Sporadic Sodium Layer Ion Chemistry And compositIon Atmospheric Dynamics
AbstractUsing 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.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6111
Collection空间科学部
Corresponding AuthorXie, HY (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China.
Recommended Citation
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.
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