The Transmission Of Hydromagnetic Waves Through The Ionosphere
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Author | : Ilan Josip Rothmuller |
Publisher | : |
Total Pages | : 334 |
Release | : 1971 |
Genre | : Ionospheric radio wave propagation |
ISBN | : |
Download The Transmission of Hydromagnetic Waves Through the Ionosphere Book in PDF, Epub and Kindle
Author | : Muhammad Abbas |
Publisher | : |
Total Pages | : 125 |
Release | : 1967 |
Genre | : Magnetohydrodynamics |
ISBN | : |
Download Hydromagnetic Waves in the Ionosphere Book in PDF, Epub and Kindle
The report is concerned with the analysis of hydromagnetic waves which are generated in various regions of the magnetosphere and propagated to the earth in the extremely low frequency spectrum. Two different aspects of the problem are investigated, namely, propagation through inhomogeneous regions of the ionosphere and propagation and excitation of waves in current carrying regions of the ionosphere and the magnetosphere. Propagation through inhomogeneous regions is studied by two different methods: Transmission coefficients for hydromagnetic waves are obtained by assuming a linearly varying inhomogeneous region and by transforming the wave equation into a hypergeometric equation such that various types of inhomogeneities can be handled (Epstein theory). Assuming a hydromagnetic wave incident from above and propagating parallel to the earth's magnetic field, power transmission coefficients are calculated for various times of day. Propagation of hydromagnetic waves through a current carrying plasma is investigated on the basis of macroscopic equations in which additional terms arising from the presence of a constant current density are included. A general dispersion relation for small amplitude waves is derived. For propagation normal to the steady magnetic field, when the currents are normal to both, the direction of propagation and the static magnetic field, it is found that amplification takes place. For longitudinal propagation with currents in the transverse plane, the propagation constant remains unaffected. For longitudinal propagation, with currents also along the direction of propagation, the propagation constant has a resonance at the ion-cyclotron frequency for both, right and left hand polarization. (Author).
Author | : C. E Prince (Jr) |
Publisher | : |
Total Pages | : 1 |
Release | : 1964 |
Genre | : |
ISBN | : |
Download A Study of the Transmission of Plane Hydromagnetic Waves Through the Upper Atmosphere Book in PDF, Epub and Kindle
A new conductivity dyadic was used to study the propagation of ordinary and extraordinary modes of wave propagation in a partially-ionized gas. The conductivity tensor included effects of all collisions and the motion of neutral particles. Medium parameters were those of the earth's upper atmosphere. The range of frequencies considered was that of geomagnetic micro-pulsations, 0.00110.0 cps. Geomagnetic equatorial regions received special attention. Incoming incident waves were assumed on a plane-stratified ionosphere. Resultant steady-state frequency responses, impulse responses, current density, electric field, and power dissipation profiles, and power spectra for daytime and nighttime atmospheres were computed. A study of coupling between the two characteristic modes showed appreciable collisional coupling in the lowest ionosphere. (Author).
Author | : Clarence Elmer Prince |
Publisher | : |
Total Pages | : 122 |
Release | : 1964 |
Genre | : Magnetohydrodynamics |
ISBN | : |
Download A study of the transmission of plane hydromagnetic waves through the upper atmosphere Book in PDF, Epub and Kindle
Author | : John Alexander Dawson |
Publisher | : |
Total Pages | : 76 |
Release | : 1966 |
Genre | : Atmosphere |
ISBN | : |
Download Hydromagnetic Wave Propagation Near 1 C/s in the Upper Atmosphere and the Properties and Interpretation of Pc 1 Micropulsations Book in PDF, Epub and Kindle
Author | : K. Rawer |
Publisher | : Springer Science & Business Media |
Total Pages | : 480 |
Release | : 2013-03-09 |
Genre | : Science |
ISBN | : 9401736650 |
Download Wave Propagation in the Ionosphere Book in PDF, Epub and Kindle
In this book, the author draws on his broad experience to describe both the theory and the applications of wave propagations. The contents are presented in four parts and the sequence of these parts reflect the development of ionospheric and propagational research in areas such as space research geophysics and communications. The first part of the book presents an outline of the theory of electromagnetic waves propagating in a cold electron plasma. For reference, vector analysis, dyadics and eigenvalues introduced in this part are presented in the appendices. Practical aspects of radio wave propagation are the subject of the second part. The typical conditions in different frequency ranges are discussed and the irregular features of the ionospheric structure such as sound and gravity waves are also considered. Warm plasma and the effects of ions are considered in the third part, which includes a discussion of sound-like waves in electron and ion plasmas. Nonlinear effects and instabilities are described in the fourth part.
Author | : Institute for Telecommunication Sciences and Aeronomy (U.S.) |
Publisher | : |
Total Pages | : 43 |
Release | : 1967 |
Genre | : Ionosphere |
ISBN | : |
Download Low Attenuation of Hydromagnetic Waves in the Ionosphere and Implied Characteristics in the Magnetosphere for PC1 Events Book in PDF, Epub and Kindle
Author | : Leonid S. Alperovich |
Publisher | : Springer Science & Business Media |
Total Pages | : 437 |
Release | : 2007-12-05 |
Genre | : Science |
ISBN | : 1402066376 |
Download Hydromagnetic Waves in the Magnetosphere and the Ionosphere Book in PDF, Epub and Kindle
Here is a fascinating text that integrates topics pertaining to all scales of the MHD-waves, emphasizing the linkages between the ULF-waves below the ionosphere on the ground and magnetospheric MHD-waves. It will be most helpful to graduate and post-graduate students, familiar with advanced calculus, who study the science of MHD-waves in the magnetosphere and ionosphere. The book deals with Ultra-Low-Frequency (ULF)-electromagnetic waves observed on the Earth and in Space.
Author | : Edward Clifton Field |
Publisher | : |
Total Pages | : 36 |
Release | : 1965 |
Genre | : Geomagnetic micropulsations |
ISBN | : |
Download The Transmission of Geomagnetic Micropulsations Through the Ionosphere and Lower Exosphere Book in PDF, Epub and Kindle
This report is part of RAND's continuing interest in the detection of high-altitude nuclear explosions. In particular, it is concerned with low-frequency hydromagnetic waves similar to those generated by such explosions, and which are detected by ground-current measurements at world-wide locations. In this report, attention is directed to the response of the ionosphere to such low-frequency hydromagnetic disturbances. The purpose is to separate the effects of the medium from those of the source on the transmitted disturbance. (Author).
Author | : Edward Clifton Field |
Publisher | : |
Total Pages | : 24 |
Release | : 1966 |
Genre | : Geomagnetic micropulsations |
ISBN | : |
Download Equatorial Transmission of Geomagnetic Micropulsations Through the Ionosphere and Lower Exosphere Book in PDF, Epub and Kindle
Part of a continuing study on the detection of high-altitude nuclear explosions. The Memorandum reports on low-frequency hydromagnetic waves similar to those generated by such explosions, and detectable by ground-current measurements at worldwide locations. Particular attention is given to the response of the ionosphere to such low-frequency hydromagnetic disturbances. The purpose is to separate the effects of the medium from those of the source on the transmitted disturbance. (Author).