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Radio Science

Nonlinear Whistler Propagation Through the Ionosphere

Authors

  • B. Buti,

  • V. K. Tripathi


Abstract

The field-strength dependence of the damping coefficient of whistlers is studied in the geometrical optics approximation in the two limiting cases: (1) weak collisions where (ω - ωe)2 » v2 (ω, ωe, and v being the wave, electron cyclotron, and electron-neutral collision frequencies, respectively) but with no restriction on the nonlinearity parameter; (2) strong collisions where v2 » (ω - ω)2 and the nonlinearity parameter is very high. The nonlinear effects are found to be very important at low frequencies as well as at frequencies near the electron cyclotron frequency.

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