Journal ArticleDOI
Atmospheric gravity waves launched by auroral currents
G. Chimonas,Colin O. Hines +1 more
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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
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Global large scale structures in the F region
TL;DR: In this article, the authors show that at times of low magnetic activity, quasi-stationary waves excited by the auroral belts are distributed about the Earth possibly with tidal or sub-tidal periods and scale lengths determined by the structure of the belts.
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Atmospheric gravity waves induced by Earth's diurnal rotation
TL;DR: In this paper, it was shown that portions of the earth's lower atmosphere in the course of its diurnal rotation could behave in a manner analogous to the fast moving cooling spot of the lunar shadow during a solar eclipse and thereby could induce atmospheric gravity waves in that region.
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The structure of the equatorial mesosphere at Thumba
B. H. Subbaraya,Shyam Lal +1 more
TL;DR: The structure of the equatorial mesosphere is investigated at Thumba by rocket borne ultraviolet absorption photometry as well as by the meteorological M-100 rocket launching program as mentioned in this paper.
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Theory of Thermospheric Waves and their Ionospheric Effects
TL;DR: In this paper, the authors reviewed the analytical aspects of the internal thermospheric waves (IW) theory development and discussed the choice of the boundary and initial conditions, the existence of which is the direct consequence of the molecular free way growth with height.
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Multi-instrument observations of large-scale atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity over Svalbard
Zama T. Katamzi-Joseph,Anasuya Aruliah,Kjellmar Oksavik,Kjellmar Oksavik,John Bosco Habarulema,Kirsti Kauristie,Michael Kosch,Michael Kosch +7 more
TL;DR: In this paper, the authors reported on observations of large-scale atmospheric gravity waves/traveling ionospheric disturbances (AGWs/TIDs) using Global Positioning System (GPS) total electron content (TEC) and Fabry-Perot Interferometer (FPI) intensity of oxygen red line emission at 630 nm measurements over Svalbard on the night of 6 January 2014.
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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.