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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 ...
Quiet time equatorial F region vertical plasma drift model derived from ROCSAT‐1 observations
(American Geophysical Union, 2008-05-03)
We have used five years of measurements on board the ROCSAT‐1 satellite to develop a detailed quiet time global empirical model for equatorial F region vertical plasma drifts. This model describes the local time, seasonal ...
A simulation study on the impact of altitudinal dependent vertical plasma drift on the equatorial ionosphere in the evening
(American Geophysical Union, 2015-02-28)
We carry out a simulation study on the impact of altitudinal dependent plasma drift on the equatorial ionosphere in the evening, under geomagnetically quiet conditions. Our study used the vertical plasma drift velocity ...
Theoretical relationship between maximum value of the post-sunset drift velocity and peak-to-valley ratio of anomaly TEC
(American Geophysical Union, 2004-02-11)
Theoretical study of electron density distribution in the nighttime equatorial ionosphere shows that linear relationships with statistically significant correlation coefficients exist between the maximum value of the ...
On the variability of equatorial F-region vertical plasma drifts
(Elsevier, 2001)
We use incoherent scatter radar measurements from the Jicamarca Observatory to study the variability of equatorial F-region vertical plasma drifts. The daytime average upward drifts do not vary much with solar activity, ...
Comparison of zonal neutral winds with equatorial plasma bubble and plasma drift velocities
(American Geophysical Union, 2013-03-20)
A one-year dataset spanning March 2011-March 2012 of coincident observations of night time thermospheric zonal neutral winds, equatorial plasma bubble (EPB) velocities, and zonal plasma drifts are used to examine the ...
Effects of the vertical plasma drift velocity on the generation and evolution of equatorial spread F
(American Geophysical Union, 1999-09-01)
We use radar observations from the Jicamarca Observatory from 1968 to 1992 to study the effects of the F region vertical plasma drift velocity on the generation and evolution of equatorial spread F. The dependence of these ...
Storm time equatorial plasma bubble zonal drift reversal due to disturbance Hall electric field over the Brazilian region
(American Geophysical Union, 2016-05-18)
The dynamics of equatorial ionospheric plasma bubbles over Brazilian sector during two magnetic storm events are investigated in this work. The observations were made at varying phases of magnetic disturbances when the ...
A measure of ionospheric irregularities: zonal velocity and its implications for L-band scintillation at low-latitudes
(2021-09-01)
We estimate the zonal drift velocity of small-scale ionospheric irregularities at low latitude by leveraging the spaced-receivers technique applied to two GNSS receivers for scintillation monitoring installed along the ...
Plasma drifts and polarization electric fields associated with TID‐like disturbances in the low‐latitude ionosphere: C/NOFS observations
(American Geophysical Union, 2016-01-13)
Medium‐scale traveling ionospheric disturbances are often observed at the magnetically conjugate points in the nighttime midlatitude ionosphere. It has been suggested that gravity waves disturb the ionosphere and induce ...