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Causes of the longitudinal differences in the equatorial vertical E × B drift during the 2013 SSW period as simulated by the TIME‐GCM
(American Geophysical Union, 2015-05-22)
During stratospheric sudden warming (SSW) periods large changes in the low‐latitude vertical drift have been observed at Jicamarca as well as in other longitudinal sectors. In general, a strengthening of the daytime maximum ...
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, ...
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 ...
Equatorial ionospheric zonal drift model and vertical drift statistics from UHF scintillation measurements in South America
(European Geosciences Union, 2004-09)
UHF scintillation measurements of zonal ionospheric drifts have been conducted at Ancon, Peru since 1994 using antennas spaced in the magnetic east-west direction to cross-correlate geo-synchronous satellite signals. An ...
Longitudinal differences of ionospheric vertical density distribution and equatorial electrodynamics
(American Geophysical Union, 2012-07-19)
Accurate estimation of global vertical distribution of ionospheric and plasmaspheric density as a function of local time, season, and magnetic activity is required to improve the operation of space‐based navigation and ...
Altitudinal dependence of evening equatorial F region vertical plasma drifts
(American Geophysical Union, 2014-06-06)
We use Jicamarca incoherent scatter radar measurements to study for the first time the altitudinal variations of late afternoon and early night equatorial F region vertical plasma drifts. We also present the initial vertical ...
A quiet time empirical model of equatorial vertical plasma drift in the Peruvian sector based on 150 km echoes
(American Geophysical Union, 2009-02-14)
Equatorial vertical plasma drift is an important consequence of the E and F region dynamos. Understanding the climatology of vertical drift can provide significant insight into many ionospheric phenomena. In this study we ...
Radar studies of height-dependent equatorial F region vertical and zonal plasma drifts
(American Geophysical Union, 2019-03)
We present the results of an analysis of long-term measurements of ionospheric F region E × B plasma drifts in the American/Peruvian sector. The analysis used observations made between 1986 and 2017 by the incoherent scatter ...
Vertical ionization drifts in the lower equatorial ionosphere and the meridional current systems
(American Geophysical Union, 1976-03-01)
Recent radar observations near the magnetic equator show that the electron vertical drift velocity below 200 km is upward during the day and downward at night, in agreement with measurements made at higher heights. The ...