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Ionospheric Irregularities Initiated by Planetary Waves
Cosmic Research, 2001The nonstationary process of the accumulation of ions of meteoric origin, which is caused by propagation of planetary waves at altitudes of the lower ionosphere, is considered. Based on horizontal and vertical ion drift in planetary waves, a possibility of plasma density increases by a factor of 10–20 in comparison with the background concentration is ...
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Models of Planetary Ionospheres
1973The distribution of charged particles (electrons and ions) in a planetary ionosphere is governed by the equation of continuity $$\frac{{\partial N}}{{\partial t}} = q - L(N) - \nabla \cdot (Nv)$$ (6-1) A steady state situation (∂N/∂t = 0) can often be assumed, except near sunrise and sunset or during other rapidly varying situations such as a
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Thermal Structure of Planetary Ionospheres
1973Electrons released in the photoionization process due to the absorption of solar XUV radiation in planetary atmospheres may have initially kinetic energies of one to 100 eV. The energy E of photoelectrons resulting from photons of energy h v interacting with an atmospheric constituent whose ionization potential is IP is given by $$E = hv - IP ...
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Doubly-charged ions in the planetary ionospheres: a review
Physical Chemistry Chemical Physics, 2011This paper presents a review of the current knowledge on the doubly-charged atomic and molecular positive ions in the planetary atmospheres of the Solar System. It is focused on the terrestrial planets which have a dense atmosphere of N(2) or CO(2), i.e.
Roland, Thissen +5 more
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Planetary Waves in the Ionosphere
1998Abstract : The objectives of this grant are to delineate and to better understand oscillations in ionospheric structure which occur at planetary-wave periods (i.e., 2-10 days). Effort has concentrated on analyses of about 30 years' of archived ionosonde data from a global array of stations, and some satellite-based measurements of total electron ...
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Observed Properties of Planetary Ionospheres
1973Information on the ionosphere of Earth has accumulated for the past four decades. Originally, electron density was the only primary quantity observable by groundbased radio techniques. During the last two decades information on other physical parameters of the ionosphere, such as charged particle temperature (T e , T i and ion composition (m i ), as ...
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Dissociative Recombination in Planetary Ionospheres
1993Ionization in planetary atmospheres can be produced by solar photoionization, photoelectron impact ionization, and, in auroral regions, by impact of precipitating particles. This ionization is lost mainly in dissociative recombination (DR) of molecular ions.
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Beaming of electromagnetic radiation by planetary ionospheres
Icarus, 1970Abstract Use is made of elementary analytical and experimental results to predict an increased directivity from sources radiating inside or outside plasma layers. It is found that the directivity enhancement is higher when the source is between two plasma layers.
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Dications in the planetary ionospheres
2006The planetary ionosphere models usually consider singly charged ions only and neglect doubly charged ions and especially the molecular ones since they were thought to be unstable in ionospheric conditions. Generally speaking, doubly charged ions are difficult to detect by mass spectrometry because their q/m number is the same as other more abundant ...
Lilensten, Jean +10 more
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