Journal ArticleDOI
Generation of gravity waves within the ionosphere by transient heating during high-power wave propagation
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TLDR
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.read more
Citations
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Journal ArticleDOI
Non-linear r.f. heating of ionospheric plasma
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.
References
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Journal ArticleDOI
Ionospheric irregularities produced by internal atmospheric gravity waves
TL;DR: In this article, a perturbation treatment is used to determine the nature and magnitude of the effects of internal atmospheric gravity waves on the ambient rates of production, chemical loss, and motion of the ionization.
Journal ArticleDOI
HF Doppler studies of traveling ionospheric disturbances
TL;DR: In this article, a network of CW Doppler sounders was used to detect ionospheric motions observed with a network-of-CW Dopplers. The motions of each type are attributed to various kinds of atmospheric waves that interact with the ionosphere.
Journal ArticleDOI
Atmospheric gravity waves launched by auroral currents
G. Chimonas,Colin O. Hines +1 more
TL;DR: In this article, a model calculation is performed by which the magnitude and form of the anticipated atmospheric wave train may be assessed, and both are found to be consistent with observations already recorded, but the question as to whether the Lorentz force or the Joule dissipation is the more important exciting agency provided by the current, is left unanswered because of present uncertainties connected with the nature of the current itself.
Journal ArticleDOI
Observations of joule and particle heating in the auroral zone
TL;DR: In this article, the authors used data from the Chatanika, Alaska incoherent scatter radar to deduce atmospheric heating rates associated with particle precipitation and joule dissipation.
Journal ArticleDOI
Determination of the Structure of the Atmosphere between 90 and 250 km by means of Contaminant Releases at Woomera, May 1968
TL;DR: In this article, a series of measurements of neutral atmospheric wind velocity, turbulent structure, temperature and density were made during each launch between 90 and 250 km altitude, combining the experimental techniques of the two groups involved.
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