منابع مشابه
The correlation of longitudinal/seasonal variations of evening equatorial pre-reversal drift and of plasma bubbles
The evening pre-reversal vertical drift velocity enhancement (PRE) constitutes an important seeding mechanism for the generation of F region irregularities. Ion density and drift measurements from ROCSAT-1 and DMSP satellites are used to examine the correlation of longitudinal/seasonal (l/s) variations in the evening pre-reversal vertical drift velocity at the magnetic equator in the topside io...
متن کاملA review on the numerical simulation of equatorial plasma bubbles toward scintillation evaluation and forecasting
Equatorial plasma bubbles (EPBs) have been a longstanding and increasingly important subject because they cause severe scintillations in radio waves from Global Navigation Satellite System satellites. The phenomenon was found in the 1930s as irregular ionosonde observations and was termed equatorial spread F (ESF). ESF is interpreted as plasma density irregularities associated with EPBs that ha...
متن کاملQuasi-Analytic Models for Density Bubbles and Plasma Clouds in the Equatorial Ionosphere
The equatorial ionosphere contains imbedded bubbles that rise though a horizontally stratified plasma. The motion of the bubbles are affect by gravity, neutral winds or external electric fields which produce electric fields in the F-Region density perturbations of the bubbles. Exact solutions for the electric potentials are derived assuming linear or circular symmetry to the density structures ...
متن کاملMagnetohydrodynamic Model of Equatorial Plasma Torus in Planetary Nebulae
Aims. Some basic structures in planetary nebulae are modeled as self-organized magnetohydrodynamic (MHD) plasma configurations with radial flow. Methods. These configurations are described by time self-similar dynamics, where space and time dependences of each physical variable are in separable form. Axisymmetric toroidal MHD plasma configuration is solved under the gravitational field of a cen...
متن کاملEquatorial F-region plasma depletion drifts: latitudinal and seasonal variations
The equatorial ionospheric irregularities have been observed in the past few years by different techniques (e.g. ground-based radar, digisonde, GPS, optical instruments, in situ satellite and rocket instrumentation), and its time evolution and propagation characteristics can be used to study important aspects of ionospheric dynamics and thermosphere-ionosphere coupling. At present, one of the m...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2016
ISSN: 2169-9380
DOI: 10.1002/2016ja022633