Journal ArticleDOI
The effect of collisions on the propagation of radio waves in the ionosphere
TLDR
In this article, the effect of the electron collision frequency ν on the group refractive index, for both the ordinary and extraordinary rays, under a wide variety of conditions, was shown.About:
This article is published in Journal of Atmospheric and Solar-Terrestrial Physics.The article was published on 1961-11-01. It has received 11 citations till now. The article focuses on the topics: Ionospheric absorption & Radio wave.read more
Citations
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Journal ArticleDOI
The electron density in the lower ionosphere
TL;DR: The amplitudes of the partial reflections obtained from heights between 60 and 120 km, on frequencies of 720 and 1420 kc/s, wore measured over a period of 2 years as mentioned in this paper.
Journal ArticleDOI
On the relation between phase path, group path and attenuation in a cold absorbing plasma
J.A. Bennett,Peter. Dyson +1 more
TL;DR: In this paper, the attenuation of a cold absorbing plasma in which the collision frequency is zero is considered and expressions for attenuation and the group and phase refractive indices are developed.
Journal ArticleDOI
Calculation of the Virtual Height and Absorption of Radio Waves in the Ionosphere
TL;DR: In this article, the virtual heights and absorption of radio waves in ionosphere were discussed, and methods of computation were discussed for computing the virtual height and absorption in the ionosphere.
Journal ArticleDOI
General formulae for absorption of radio waves in the ionosphere
Peter. Dyson,J.A. Bennett +1 more
TL;DR: In this article, the relationship between group path, phase path and absorption of radio waves is discussed and new approximations relating these quantities are presented, which are not restricted to quasi-longitudinal or quasi-transverse situations.
Journal ArticleDOI
Calculation of HF absorption using the International Reference Ionosphere
B.G. Ferguson,L.F. McNamara +1 more
TL;DR: In this article, values of vertical incidence HF absorption calculated using the International Reference Ionosphere (IRI) are compared with published values obtained using the A1 technique, and it is found that the IRI overestimates the absorption under most conditions, especially near the geomagnetic equator.
References
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Journal ArticleDOI
On the generalization of the Appleton‐Hartree magnetoionic formulas
H. K. Sen,A. A. Wyller +1 more
TL;DR: In this article, an extension of Jancel and Kahan's magnetoionic theory, which is based upon solutions of the Boltzmann equation, when v = vmf(v) was presented.
Journal ArticleDOI
Group velocities and group heights from the magneto-ionic theory
D.H. Shinn,H.A. Whale +1 more
TL;DR: In this article, the group velocity of a radio wave in the ionosphere above South East England is calculated for the ordinary and extraordinary wave for a wide range of frequencies in the form of curves.
Journal ArticleDOI
The use of full-wave solutions in the interpretation of ionospheric absorption measurements
J.A. Fejer,R.W. Vice +1 more
TL;DR: In this article, a numerical method is developed for solving the equations of ionospheric wave propagation for vertical incidence, which neglects coupling, is used for the calculation of ionosphere absorption, and is applied in a preliminary interpretation of observed values of absorption.