Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.135..325d&link_type=abstract
(National Space Science Symposium, University of Gauhati, India, Feb. 19-22, 1986) Astrophysics and Space Science (ISSN 0004-640
Astronomy and Astrophysics
Astrophysics
1
Gravity Waves, Ionospheric Heating, Radio Waves, Transient Heating, Wave Propagation, E Region, Electric Fields, Lorentz Force, Low Frequencies, Neutral Gases, Ohmic Dissipation
Scientific paper
Generation of short-range gravity waves within the ionosphere due to inhomogeneous heating in the presence of space-localized inhomogeneities during high-power radio wave-propagation has been investigated. The magnitude and form of the anticipated atmospheric wave-trains are obtained. The derived expression 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 the E-region of the ionosphere. The results are presented graphically.
Adhikari Sadhan K.
Bandyopadhyay Jogia
Bandyopadhyay Santanu
De Sandip
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