The non-linear heating of electrons in the ionospheric plasma due to high-power radio wave propagation has been investigated through an integro-differential equation derived from Boltzmann velocity-moment equations. Various processes appropriate to the situation under study are taken into account. The numerical solution of the derived equation is presented graphically.

Non-linear r.f. heating of ionospheric plasma

In this article expressions for the first and second order cross modulations (CM's) have been obtained when an amplitude-modulated electromagnetic wave (EMW) is reflected from the magneto-plasma free space interface in the presence of an external magnetic field at gyroresonance by the rigorous kinetic approach (Boltzmann equation). The expressions thus obtained have been used to study the variations of the first and second order CM's with various plasma parameters such as collision frequency, plasma frequency, and index of modulation.

Nonlinear Cross Modulation in a Dispersive Magnetoplasm at Gyroresonance on Its Reflection from Free Space Interface

Generation of short-range gravity waves within the ionosphere due to inhomogenous heating in the presence of space-localized inhomogeneities during high-power radio wave-propagation has been investigated. The magnitude and from of the anticipated atmospheric wave-trains are obtained. The derived experession of electric field within the ionosphere under the stated perturbed condition may be considered to be manifested through Lorentz-force and Joule-dissipation that influence the neutral gas of the atmosphere via collision-mechanism and thereby gravity waves are launched. The expressions for the low-frequency part of the fractional pressure variations have been derived which are applied to theE-region of the ionosphere. The results are presented graphically.

Non-linear r.f. heating of ionospheric plasma

References

Nonlinear Cross Modulation in a Dispersive Magnetoplasm at Gyroresonance on Its Reflection from Free Space Interface

Generation of gravity waves within the ionosphere by transient heating during high-power wave propagation

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