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Author: L. A. Lobačevskij
Publisher:
ISBN:
Category :
Languages : en
Pages : 209
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Author: L. A. Lobačevskij
Publisher:
ISBN:
Category :
Languages : en
Pages : 209
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Author: Daniel W. Michaels
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 67
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Experiments in ionospheric modification, i.e., the introduction of chemical or radioactive agents into the ionosphere for the purpose of altering electron concentrations and thus ionization levels, have been conducted by the USSR, the US, and Britain in order to develop methods of ensuring communications reliability of friendly forces and disrupting enemy communications in the event of war. Primary attention in this report is focused on Soviet interest in the single most important such experiment, namely, the study of the effects of a nuclear burst at a given height on radar and radio-wave propagation characteristics. Other non-nuclear, but germane, experiments as, for example, investigations of ray paths in artificially created ionized clouds, are also discussed. (Author).
Author: R. E. LeLevier
Publisher:
ISBN:
Category : Ionosphere
Languages : en
Pages : 0
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Author: A. J. Stocker
Publisher:
ISBN:
Category : Ionospheric radio wave propagation
Languages : en
Pages :
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Author: Kenneth Davies
Publisher: IET
ISBN: 9780863411861
Category : Science
Languages : en
Pages : 612
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This introductory text replaces two earlier publications (Davies 1965, 1969). Among the topics: characteristics of waves and plasma, the solar-terrestrial system, the Appleton formula, radio soundings of the ionosphere, morphology of the ionosphere, oblique propagation, importance of amplitude and phase, earth-space propagation. Annotation copyrighted by Book News, Inc., Portland, OR
Author:
Publisher:
ISBN:
Category : Ionosphere
Languages : en
Pages : 234
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Author: Paul A. Bernhardt
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Author: Peter M. Banks
Publisher:
ISBN:
Category :
Languages : en
Pages : 2
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HIS PAPER DISCUSSES SPACE-BORNE, NON-ELECTROMAGNETIC METHODS OF MODIFYING THE E- and F-regions of the terrestrial ionosphere. Of these, the most well-understood is the direct injection of chemical vapors into the ambient medium. The first injection of barium clouds into the upper atmosphere over two decades ago has led to evolution of understanding of complex electrodynamic processes acting in the ionosphere and spawned extensive studies of small-scale plasma instabilities. Modification to the ionosphere can last for up to hours from such injections. other vapors have also been released, including water vapor, SF 6 and more noxious gases, in successful efforts to alter the chemistry of the ionosphere. In another direction, injections of high amu gases from orbiting spacecraft have been made in attempts to understand the non-classical ionization processes involved in the critical ionization velocity (CIV) concept. The results seem to indicate that for CIV to act in space, large quantities of injected gas are required to achieve a minimum interaction volume density. However, in these and other experiments, it has been found that the potential CIV effects are supplemented by a variety of associated classical processes also acting for these same gases. For example, plasma disturbances are associated with neutral gas releases when charge exchange to ambient ions occurs. This leads to the formation of electrostatically polarized plasma clouds around the neutral gas-emitting space platform and these create large disturbances in the ionosphere.
Author: C. J. Chilton
Publisher:
ISBN:
Category : Electromagnetic interactions
Languages : en
Pages : 48
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Author: Juan Valentin Rodriguez
Publisher:
ISBN:
Category : D region
Languages : en
Pages : 392
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