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Resonances of the Thin‐Shell Model of the Earth‐Ionosphere Cavity With a Dipolar Magnetic Field
Author(s) -
Large David B.,
Wait James R.
Publication year - 1967
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds196727695
Subject(s) - earth's magnetic field , ionosphere , dipole , computational physics , physics , multi mode optical fiber , magnetic field , geophysics , anisotropy , magnetic dipole , dipole model of the earth's magnetic field , field (mathematics) , optics , quantum mechanics , interplanetary magnetic field , mathematics , optical fiber , solar wind , pure mathematics
A coupled multimode analysis technique is applied to a model of the earth‐ionosphere cavity at ELF in which the ionosphere is replaced by a thin, anisotropic shell. The unique feature of the analy. sis is that it is capable of illustrating the effects of a dipolar form of geomagnetic field. Numerical values of the cavity resonant frequencies and quality factors for several values of electron density and collision frequency are presented for both a homogeneous and a dipolar magnetic field configuration. The main purpose of the paper is to demonstrate that a coupled multimode analysis is applicable to such nonsymmetrical configurations.