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Equatorial 150 km echoes and daytime F-region vertical plasma drifts in the Brazilian longitude sector
(European Geosciences Union, 2013-10-31)
Previous studies showed that conventional coherent backscatter radar measurements of the Doppler velocity of the so-called 150 km echoes can provide an alternative way of estimating ionospheric vertical plasma drifts during ...
Measuring ionospheric densities, temperatures and drift velocities simultaneously at Jicamarca
(American Geophysical Union, 1997-11-15)
Incoherent scatter autocorrelation function measurements are difficult to make in the F región at Jicamarca because of very strong clutter contamination by coherent echoes from unstable plasma waves in the -B-region ...
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 ...
Storm time dependence of equatorial disturbance dynamo zonal electric fields
(American Geophysical Union, 1997-11-01)
We use Jicamarca radar observations of F region vertical plasma drifts and auroral electrojet indices during 1968–1988 to study the characteristics and temporal evolution of equatorial disturbance dynamo zonal electric ...
On wave generation by perpendicular currents
(Blackwell Publishing Ltd, 2003)
Previous assessment of the stability of perpendicular particle drifts in cold magnetoplasmas showed that their free energy could stimulate wave activity under various circumstances that included nonoscillatory (aperiodic, ...
Longitudinal ionospheric effects in the South Atlantic evening sector during solar maximum
(American Geophysical Union, 2002-07-10)
Large-scale horizontal gradients in ion density and vertical drift observed by the Atmospheric Explorer E satellite in the South Atlantic region (latitudes 10S–20S, longitudes 50W–10E) during the June solstice at solar ...
Abnormal evening vertical plasma drift and effects on ESF and EIA over Brazil-South Atlantic sector during the 30 October 2003 superstorm
(2008-07-01)
Equatorial F region vertical plasma drifts, spread F and anomaly responses, in the south American longitude sector during the superstorm of 30 October 2003, are analyzed using data from an array of instruments consisting ...
Abnormal evening vertical plasma drift and effects on ESF and EIA over Brazil-South Atlantic sector during the 30 October 2003 superstorm
(2008-07-01)
Equatorial F region vertical plasma drifts, spread F and anomaly responses, in the south American longitude sector during the superstorm of 30 October 2003, are analyzed using data from an array of instruments consisting ...
Vertical structure of the VHF backscattering region in the equatorial electrojet and the gradient drift instability
(American Geophysical Union, 1975-04-01)
Radar measurements made with high spatial resolution and large dynamic range at the Jicamarca Radar Observatory near the time of reversal of the electrojet current provide further proof that the gradient drift instability ...