Author : Nicholas Gothárd
Publisher :
Page : 258 pages
File Size : 14,49 MB
Release : 1965
Category : Magnetohydrodynamics
ISBN :
Author : Leonid S. Alperovich
Publisher : Springer Science & Business Media
Page : 437 pages
File Size : 26,42 MB
Release : 2007-12-05
Category : Science
ISBN : 1402066376
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 : A.D.M. Walker
Publisher : Springer Science & Business Media
Page : 355 pages
File Size : 24,3 MB
Release : 2013-03-13
Category : Science
ISBN : 3642778674
This book is a study of plasma waves which are observed in the earth's magnetosphere. The emphasis is on a thorough, but concise, treatment of the necessary theory and the use of this theory to understand the manifold varieties of waves which are observed by ground-based instruments and by satellites. We restrict our treatment to waves with wavelengths short compared with the spatial scales of the background plasma in the mag netosphere. By so doing we exclude large scale magnetohydrodynamic phenomena such as ULF pulsations in the Pc2-5 ranges. The field is an active one and we cannot hope to discuss every wave phenomenon ever observed in the magnetosphere! We try instead to give a good treatment of phenomena which are well understood, and which illustrate as many different parts of the theory as possible. It is thus hoped to put the reader in a position to understand the current literature. The treatment is aimed at a beginning graduate student in the field but it is hoped that it will also be of use as a reference to established workers. A knowledge of electromagnetic theory and some elementary plasma physics is assumed. The mathematical background required in cludes a knowledge of vector calculus, linear algebra, and Fourier trans form theory encountered in standard undergraduate physics curricula. A reasonable acquaintance with the theory of functions of a complex vari able including contour integration and the residue theorem is assumed.
Author : K. G. Budden
Publisher : Cambridge University Press
Page : 694 pages
File Size : 30,94 MB
Release : 1988-08-04
Category : Science
ISBN : 9780521369527
This book is concerned with the ionosphere and the magnetosphere, and the theory of their effect on radio waves. It includes accounts of some mathematical topics now widely used in this study, particularly W. K. B. approximations, Airy integral functions and integration by steepest descents. The subject is divided into ray theory and full wave theory. Ray theory is useful for high frequencies when the ionosphere is treated as a horizonally stratified medium. The discussion of the magnetosphere, whose structure is more complicated, includes an account of whistlers and ion cyclotron whistlers. The book has been planned both for final year undergraduates and as a reference book for research. It is suitable as a course book on radio propagation for students of physics or electrical engineering or mathematics. Some of the topics are presented from an elementary viewpoint so as to help undergraduates new to the subject. The later parts are more advanced. Because the subject is so large and has seen many important recent advances, some topics have had to be treated briefly, but there is a full bibliography with about 600 references.
Author : Henry R. Radoski
Publisher :
Page : 40 pages
File Size : 23,14 MB
Release : 1976
Category : Electric fields
ISBN :
Numerical solutions to the initial value problem have been obtained for the guided (toroidal) and isotropic (poloidal) electric fields of hydromagnetic waves for the asymmetric case. The cylindrical model of the inner magnetosphere has been used in which the field lines are arcs of circles and the surface of the earth is planar. The cases considered have the initial disturbance completely restricted to either the guided or isotropic field components to emphasize the effect of coupling. The development of the system has been calculated for asymmetric modes of order m = 1 to 10, corresponding to from one to ten full waves in longitude and the lowest order (n =1) field-line mode, corresponding to a half-wave along a field line. The initial isotropic (east-west) electric-field component is in an eigenstate of the symmetric or uncoupled poloidal mode. In this case, when the coupling is reduced to zero, the isotropic electric field simply oscillates harmonically. The initial guided (north-south) electric-field component is defined to increase radially and towards higher latitudes. As a check on the numerical solutions, the total energy of the system is continually calculated and compared with the initial energy. Although no damping is included in the problem, the poloidal-mode energy decays with time, as has been shown theoretically. The toroidal mode reaches maximum amplitude in regions of relatively narrow latitudinal extent. The large spatial variation of the magnetic field in these resonance regions must be associated with large field aligned currents. (Author).
Author : John Carstoiu
Publisher :
Page : 48 pages
File Size : 25,71 MB
Release : 1962
Category : Magnetic dipoles
ISBN :
Author : Vitaliĭ Lazarevich Ginzburg
Publisher : Pergamon
Page : 650 pages
File Size : 32,13 MB
Release : 1970
Category : Science
ISBN :
"Much attention has been given also to various sepecific problems, in particular the propagation and generation of waves in the Earth's ionosphere and magnetosphere, in the interplanetary plasma, and in laboratory apparatus, as well as solid-state plasmas." -- p. xiii.
Author : United States. Congress. House. Committee on Science and Astronautics
Publisher :
Page : 2348 pages
File Size : 31,64 MB
Release : 1967
Category :
ISBN :
Committee Serial No. 2. Considers H.R. 4450 and H.R. 6470, superseded by H.R. 10340, to provide FY68 authorizations for NASA RPD programs, including the Apollo Program, for construction of facilities at field centers, and for administrative operations.
Author : United States. Congress. House. Committee on Science and Astronautics
Publisher :
Page : 1098 pages
File Size : 17,20 MB
Release : 1967
Category :
ISBN :
Author : Jayaram Ramasastry
Publisher :
Page : 36 pages
File Size : 17,75 MB
Release : 1967
Category : Magnetospheric radio wave propagation
ISBN :
