Generation of gravity waves within the ionosphere by transient heating during high-power wave propagation
01 Jul 1987-Astrophysics and Space Science (Kluwer Academic Publishers)-Vol. 135, Iss: 2, pp 325-334
TL;DR: In this article, the authors derived expressions for the low-frequency part of the fractional pressure variations in the E-region of the ionosphere under the stated perturbed condition may be considered to be manifested through Lorentzforce and Joule-dissipation that influence the neutral gas of the atmosphere via collision-mechanism and thereby gravity waves are launched.
Abstract: 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.
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TL;DR: In this paper, the nonlinear heating of electrons in the ionospheric plasma due to high-power radio wave propagation was investigated through an integro-differential equation derived from Boltzmann velocity-moment equations.
Abstract: 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.
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TL;DR: In this article, the theory of gravity waves appropriate to conditions in the F -region is developed. And the influence of the inductive deceleration is included and the linearized equations of motion are solved by a W.K.B. approximation.
51 citations
TL;DR: In this paper, a quasi-point heating model was proposed to generate gravity wave induced by the terminator crossing constituent inhomogeneities of short lifetime, and the largest amplitude must appear vertically above the source, where the perturbation frequency is close to the Vaisala-Brunt frequency.
27 citations
TL;DR: Following magnetic activity, the recombination rate in the F-region is increased as discussed by the authors, and there is good agreement with the idea that the increase in recombination rates results from mixing caused by the passage of atmospheric waves.
22 citations
TL;DR: In this article, the eddy diffusion limit of sodium clouds ejected by rockets can be considered as an indicator of the turbopause and the altitude of the tracers varies substantially during the night.
20 citations
TL;DR: An hour by hour study of F-region waves by means of radio Doppler-sounders has been made over many days as discussed by the authors, revealing strong patterns of diurnal variation.
20 citations