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Anisotropic electromagnetic wave propagation modeling using parabolic approximations
Author(s) -
Brent R. I.,
Siegmann W. L.,
Jacobson M. J.,
Jacyna G. M.
Publication year - 1990
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 - 10.1029/rs025i006p01121
Subject(s) - poynting vector , electric field , physics , wave propagation , electromagnetic field , optical field , computational physics , magnetic field , anisotropy , field (mathematics) , earth's magnetic field , electromagnetic radiation , inhomogeneous electromagnetic wave equation , classical mechanics , mathematical analysis , optics , mathematics , quantum mechanics , pure mathematics
A new method for the investigation of anisotropic electromagnetic wave propagation in the atmosphere is developed using parabolic approximations. Model equations for the electric field components are formulated which include the effects of both the inhomogeneous atmosphere and the static magnetic field of the Earth. Application of parabolic‐type approximations produces different systems of coupled parabolic equations. Each is valid for different relative magnitudes of components of the electric field. All admissible cases are then synthesized into one system which can be numerically examined, yielding solutions without a priori knowledge of electric field ratios. A specific example is presented and examined to understand static magnetic field effects on electromagnetic wave propagation. The influences of the Earth's magnetic field are discussed and displayed in terms of electric components and the Poynting vector. Results demonstrate that the geomagnetic field can significantly influence HF atmospheric propagation.