Case study of an Equatorial Plasma Bubble Event investigated by multiple ground-based instruments at low latitudes over China

2021 ◽  
Vol 5 (5) ◽  
pp. 1-15
Author(s):  
LongChang Sun ◽  
◽  
JiYao Xu ◽  
YaJun Zhu ◽  
Wei Yuan ◽  
...  
2016 ◽  
Vol 121 (1) ◽  
pp. 881-893 ◽  
Author(s):  
Jaeheung Park ◽  
Carlos R. Martinis ◽  
Hermann Lühr ◽  
Robert F. Pfaff ◽  
Young‐Sil Kwak

2021 ◽  
Author(s):  
Remya S. Nair ◽  
K. Unnikrishnan ◽  
Sreekumar Haridas ◽  
R. K Choudhary

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Y. Nakamura ◽  
I.H.A. Sobral ◽  
M.A. Abdu

Para solicitação de resumo, entrar em contato com editor-chefe ([email protected]). 


1992 ◽  
Vol 54 (7-8) ◽  
pp. 893-901 ◽  
Author(s):  
R.S Dabas ◽  
P.K Banerjee ◽  
S Bhattacharya ◽  
B.M Reddy ◽  
J Singh

2021 ◽  
Author(s):  
Fuqing Huang ◽  
Jiuhou Lei ◽  
Chao Xiong

<p>Equatorial plasma bubbles (EPBs) are typically ionospheric irregularities that frequently occur at the low latitudes and equatorial regions, which can significantly affect the propagation of radio waves. In this study, we reported a unique strong EPB that happened at middle latitudes over the Asian sector during the quiescent period. The multiple observations including total electron content (TEC) from Beidou geostationary satellites and GPS, ionosondes, in-situ electron density from SWARM and meteor radar are used to explore the characteristic and mechanism of the observed EPB. The unique strong EPB was associated with great nighttime TEC/electron density enhancement at the middle latitudes, which moves toward eastward. The potential physical processes of the observed EPB are also discussed.</p>


2008 ◽  
Vol 26 (4) ◽  
pp. 893-903 ◽  
Author(s):  
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◽  
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Abstract. Sometimes the ionospheric total electron content (TEC) is significantly enhanced during low geomagnetic activities before storms. In this article, we investigate the characteristics of those interesting TEC enhancements using regional and global TEC data. We analyzed the low-latitude TEC enhancement events that occurred around longitude 120° E on 10 February 2004, 21 January 2004, and 4 March 2001, respectively. The TEC data are derived from regional Global Positioning System (GPS) observations in the Asia/Australia sector as well as global ionospheric maps (GIMs) produced by Jet Propulsion Laboratory (JPL). Strong enhancements under low geomagnetic activity before the storms are simultaneously presented at low latitudes in the Asia/Australia sector in regional TEC and JPL GIMs. These TEC enhancements are shown to be regional events with longitudinal and latitudinal extent. The regions of TEC enhancements during these events are confined at narrow longitude ranges around longitude 120° E. The latitudinal belts of maxima of enhancements locate around the northern and southern equatorial ionization anomaly (EIA) crests, which are consistent with those low-latitude events presented by Liu et al. (2008). During the 4 March 2001 event, the total plasma density Ni observed by the Defense Meteorological Satellite Program (DMSP) spacecraft F13 at 840 km altitude are of considerably higher values on 4 March than on the previous day in the TEC enhanced regions. Some TEC enhancement events are possibly due to contributions from auroral/magnetospheric origins; while there are also quasi-periodic enhancement events not related to geomagnetic activity and associated probably with planetary wave type oscillations (e.g. the 6 January 1998 event). Further investigation is warrented to identify/separate contributions from possible sources.


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