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Evolution of equatorial ionospheric plasma bubbles and formation of broad plasma depletions measured by the C/NOFS satellite during deep solar minimum
(American Geophysical Union, 2011-03-08)
An unexpected feature revealed by the measurements of the Communication/Navigation Outage Forecasting System (C/NOFS) satellite is the presence of broad plasma depletions in the midnight–dawn sector during deep solar ...
Are plasma bubbles a prerequisite for the formation of broad plasma depletions in the equatorial F region?
(American Geophysical Union, 2013-06-24)
Formation of broad plasma depletions (BPDs) at night in the equatorial F region is understood in association with plasma bubbles. However, we report BPDs that do not show a connection with bubbles. The characteristics of ...
The zonal motion of equatorial plasma bubbles relative to the background ionosphere
(American Geophysical Union, 2014-07-09)
The zonal motions of plasmas inside equatorial plasma bubbles are different from those in the background ionosphere. The difference was explained in terms of the tilt of bubbles by recent studies, but observational evidence ...
Signatures of equatorial plasma bubbles in VHF satellite scintillations and equatorial ionograms
(American Geophysical Union, 2013-02-22)
Since their discovery in the 1970s, equatorial plasma bubbles (EPBs) have been invoked to explain the propagation of VHF signals on trans‐equatorial circuits at night, and blamed for highly detrimental scintillation of VHF ...
Broad plasma depletions detected in the bottomside of the equatorial F region: Simultaneous ROCSAT-1 and JULIA observations
(American Geophysical Union, 2014-07-09)
We investigated the association of broad plasma depletions (BPDs) with plasma bubbles and ionospheric uplift in the equatorial F region using the coincident satellite and radar observations over Jicamarca in Peru. BPDs ...
Upwelling: a unit of disturbance in equatorial spread F
(SpringerOpen, 2015-04-23)
Plasma structure in the nighttime equatorial F layer, often referred to as equatorial spread F (ESF), is not uniformly distributed, either in time or in space. Observations indicate that ESF in the bottomside F layer takes ...
An effective TEC data detrending method for the study of equatorial plasma bubbles and traveling ionospheric disturbances
(American Geophysical Union, 2015-11-18)
Using a mechanical analogy of rolling a cylindrical barrel on a rough uneven surface, we developed a special method for detrending the GPS‐derived total electron content (TEC) data. This method is specifically designed to ...
Drift Velocity Estimation of Ionospheric Bubbles Using GNSS Observations
(2021-08-01)
Equatorial plasma bubble (EPB) irregularities are large-scale plasma depleted structures that exist in the equatorial and low-latitude ionosphere. Thus, particularly in these regions, much attention must be given to the ...
Global equatorial plasma bubble occurrence during the 2015 St. Patrick's Day storm
(American Geophysical Union, 2016-01-18)
An analysis of the occurrence of equatorial plasma bubbles (EPBs) around the world during the 2015 St. Patrick's Day geomagnetic storm is presented. A network of 12 Global Positioning System receivers spanning from South ...
Diagnostics of equatorial and low latitude ionosphere by TEC mapping over Brazil
(Elsevier B.V., 2014-08-01)
The total electron content (TEC) in the equatorial and low-latitude ionosphere over Brazil was monitored in two dimensions by using 2011 data from the ground-based global navigation satellite system (GNSS) receiver network ...