Parametric excitation and suppression of convective plasma instabilities in the high-latitude F region ionosphere

Details Parametric excitation and suppression of convective plasma instabilities in the high-latitude F region ionosphere Parametric excitation and suppression of convective plasma instabilities in the high-latitude F region ionosphere

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.7239k&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 88, Sept. 1, 1983, p. 7239-7244. Research supported by the U.S. Defense N

Physics

9

Auroral Zones, Convection Currents, F Region, Ionospheric Drift, Ionospheric Propagation, Magnetohydrodynamic Stability, Ionospheric Currents, Ionospheric Electron Density, Plasma Waves, Plasma-Electromagnetic Interaction, Polar Regions

Scientific paper

Parametric coupling processes of a large-amplitude electromagnetic pump wave with convective plasma fluid instabilities (E cross B gradient drift and current convective) in the high-latitude F region ionosphere have been studied. It is found that a pump wave, with frequency near the upper hybrid frequency and with electric field component perpendicular to the ambient magnetic field, can stabilize or destabilize the E cross B gradient drift and/or current convective instability. For parameters typical of the nighttime high-latitude F region ionosphere, stabilization or destabilization is found with a vertically incident O mode carrying a free space incident power density of the order of 0.0001 W/sq m.

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