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Optical observation of plasma bubbles and comparative study of multiple methods of observing the ionosphere over China
Alternative TitleWOS:000533506300005;20201508383723
Ma, Xin; Fang, Hanxian1
Source PublicationADVANCES IN SPACE RESEARCH
2020
Volume65Issue:12Pages:2761-2772
DOI10.1016/j.asr.2020.03.016
ISSN0273-1177
Language英语
KeywordPlasma bubbles Image processing Morphological features Spatial scale Drift velocity EQUATORIAL SPREAD-F LONGITUDINAL VARIABILITY LOW-LATITUDE REGION SATELLITE HALEAKALA AIRBORNE DRIFT
AbstractIonospheric plasma bubbles and scintillation phenomena often occur at low latitudes in China. The all-sky airglow imager located at Fuke station in Hainan (19.5 degrees N, 109.2 degrees E) is part of the Meridian project in China. In this work, we used mainly the observation data obtained by the imager and a digisonde to study plasma bubbles. Optical image processing-including image enhancement, azimuth correction and image projection was performed on the original airglow observation images, and clear high-resolution images of the bubbles were obtained. Based on these, the morphological features, spatial and temporal variations, spatial scale, drift velocity of the plasma bubbles in the F region of the ionosphere were investigated and analyzed. The plasma bubbles appeared as long, dark stripes on the bright airglow emission background. Their large-scale structures often bifurcated vertically, and were usually tilted westward with north-south extension along the magnetic field lines. The east-west scale of the plasma bubbles was usually greater than 200 km and these increased gradually with time. Moreover, the distance between the adjacent plasma bubbles also increased over time, and was in the 100-400 km range. Plasma bubbles generally drifted eastward with an average drift velocity of approximately 90 m/s. The occurrence and duration of the plasma bubbles were compared with digisonde observations, and it was shown that plasma bubbles lasted for nearly four hours. Additionally, the main characteristics of the plasma bubbles were obtained using both optical and radio observations and the study of which can be beneficial for monitoring and predicting ionospheric scintillations. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved.
Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7697
Collection中国科学院国家空间科学中心
Affiliation1.Natl Univ Def Technol, Inst Meteorol & Oceanog, Nanjing 211100, Peoples R China
2.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Ma, Xin,Fang, Hanxian. Optical observation of plasma bubbles and comparative study of multiple methods of observing the ionosphere over China[J]. ADVANCES IN SPACE RESEARCH,2020,65(12):2761-2772.
APA Ma, Xin,&Fang, Hanxian.(2020).Optical observation of plasma bubbles and comparative study of multiple methods of observing the ionosphere over China.ADVANCES IN SPACE RESEARCH,65(12),2761-2772.
MLA Ma, Xin,et al."Optical observation of plasma bubbles and comparative study of multiple methods of observing the ionosphere over China".ADVANCES IN SPACE RESEARCH 65.12(2020):2761-2772.
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