Lower hybrid drift instability in the ionosphere

Details Lower hybrid drift instability in the ionosphere Lower hybrid drift instability in the ionosphere

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phys...19..533g&link_type=abstract

Physica Scripta, vol. 19, May-June 1979, p. 533-537.

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Ionospheric Drift, Plasma Resonance, Resonant Frequencies, Wave Propagation, Atmospheric Stratification, Electron Energy, Ionospheric Electron Density, Refractivity

Scientific paper

In this paper we examine the drift instability around the lower hybrid resonance (LHR) frequency in the presence of temperature and density gradients. The unstable mode which propagates with the electron drift velocity is strongly affected by the electron temperature and density gradients present in a direction perpendicular to the magnetic field. A generalized expression for the growth/damping rate for the lower hybrid drift mode in the presence of temperature and density gradients have been derived and discussed for suitable ionospheric plasma parameters. Expressions for marginal stability and maximum growth rate have also been calculated. Applications of these results to explain some of the observed features of satellite observations of ionospheric plasma have been indicated.

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