Journal ArticleDOI
Atmospheric gravity waves launched by auroral currents
G. Chimonas,Colin O. Hines +1 more
TLDR
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.About:
This article is published in Planetary and Space Science.The article was published on 1970-04-01. It has received 179 citations till now. The article focuses on the topics: Atmospheric wave.read more
Citations
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Journal ArticleDOI
Morphology of large-scale traveling atmospheric disturbances in the polar thermosphere
R. L. Balthazor,R.J. Moffett +1 more
TL;DR: Using a fully coupled thermosphere-ionosphere-plasmasphere model, the authors investigated the morphology of modelled Large-Scale Traveling Atmospheric Disturbances (LS-TADs) propagating both poleward and equatorward from auroral sources.
Journal ArticleDOI
Lamb waves in the presence of realistic distributions of temperature and dissipation
Richard S. Lindzen,Donna Blake +1 more
TL;DR: In this paper, the amplitude of the Lamb wave was shown to increase with altitude until limited by a combination of molecular diffusion and ion drag, and it was shown that the lifetime of such waves depends primarily on surface friction.
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Thermospheric gravity waves: Observations and interpretation using the transfer function model (TFM)
Hans G. Mayr,Isadore Harris,Federico A. Herrero,Nelson W. Spencer,F. Varosi,F. Varosi,W. D. Pesnell +6 more
TL;DR: In this article, the authors present some numerical experiments performed with the TFM to study the various wave components excited in the auroral regions that propagate through the lower atmosphere and demonstrate the properties of realistic source geometries.
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High-resolution altitude profiles of the auroral zone energy dissipation due to ionospheric currents
Asgeir Brekke,C. L. Rino +1 more
TL;DR: In this article, the first height-resolved altitude profiles of the Joule heating rate obtained by using the Chatanika, Alaska, incoherent scatter radar are presented, and it is inferred that this large difference in height between the two electrojets and the corresponding altitude change in the Joules heating will have a significant effect on the source mechanisms for such phenomena as atmospheric gravity waves, infrasonic waves, and spread F irregularities.
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Theoretical model for the latitude dependence of the thermospheric annual and semiannual variations
Hans G. Mayr,H. Volland +1 more
TL;DR: In this article, a three-dimensional model for the annual and semiannual variations of the thermosphere is presented in which energy and diffusive mass transport associated with the global circulation are considered in a self-consistent form.
References
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Journal ArticleDOI
Internal atmospheric gravity waves at ionospheric heights
TL;DR: In this paper, the proper interpretation of irregular motions in the upper atmosphere has been investigated by a variety of techniques, but their proper interpretation has yet to be established. But their proper meaning has not yet been established.
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A model of the auroral electrojets
TL;DR: In this paper, a model of an arc is presented in which the height variation of the auroral ionization is taken into account and vertical currents are allowed to flow in the arc, and the electric field or wind velocity field required to drive the currents is computed for two different cases: in one, the current flow between the ionosphere and the outer magnetosphere is assumed to be limited and electric fields occur along the magnetic field lines in the magnetosphere; in the other, the conductivity along the field lines is assumed that are perfect.
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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.
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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.
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Propagation of acoustic-gravity waves in the atmosphere
Frank Press,David G. Harkrider +1 more
TL;DR: In this paper, the authors used homogeneous wave guide theory to derive dispersion curves, vertical pressure distributions, and synthetic barograms for atmospheric waves, and found that the major features on barograms are due to dispersion; superposition of several modes is needed to explain observed features.