Physics
Scientific paper
Dec 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....8710514s&link_type=abstract
Journal of Geophysical Research, vol. 87, Dec. 1, 1982, p. 10514-10518. Research supported by the U.S. Defense Nuclear Agency.
Physics
3
Ionospheric Ion Density, Plasma Interaction Experiment, Striation, Taylor Instability, Barium, Computerized Simulation, Electric Fields, Gyrofrequency, Ionospheric Drift, Ionospheric Electron Density, Velocity Distribution
Scientific paper
It is suggested that a Rayleigh-Taylor instability driven by ion inertia is a source of additional growth for prompt striations following the saturation of the seed, kinetic, loss cone instability. The destabilization of Rayleigh-Taylor modes on the prompt striation scale size is seen as implying a simultaneous excitation of large scale size Rayleigh-Taylor modes. The long-term influence of prompt striations on large scale fluid turbulence and on the outer scale of the power spectral density may be minimal. The kinetic loss cone and Rayleigh-Taylor instabilities are treated in an asymptotic sense, with the kinetic loss cone instability being driven by an ion loss cone distribution function and possibly a density gradient and the Rayleigh-Taylor instability (the result of a simultaneous density gradient and an electric polarization drift).
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