Diagrammatic method to describe the self-inductive response of the magnetosphere-ionosphere-atmosphere-Earth electromagnetically coupled system as a quasi-particle excitation

Details Diagrammatic method to describe the self-inductive response of the magnetosphere-ionosphere-atmosphere-Earth electromagnetically coupled system as a quasi-particle excitation Diagrammatic method to describe the self-inductive response of the magnetosphere-ionosphere-atmosphere-Earth electromagnetically coupled system as a quasi-particle excitation

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1055y&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A5, pp. SMP 3-1, CiteID 1055, DOI 10.1029/2000JA000405

Physics

1

Magnetospheric Physics: Magnetosphere/Ionosphere Interactions, Ionosphere: Current Systems (2708), Ionosphere: Electric Fields (2712), Ionosphere: Ionosphere/Magnetosphere Interactions (2736), Magnetospheric Physics: Mhd Waves And Instabilities

Scientific paper

A diagrammatic method to intuitively describe the inductive response of wave fields in the magnetosphere-ionosphere-atmosphere-Earth (MIAE) electromagnetically coupled system is developed. The coupling process of magnetohydrodynamic (MHD) waves and atmospheric electromagnetic waves, which interact with an anisotropically conducting thin sheet ionosphere, can be understood in terms of a process of redistribution of the induced current of wave modes. On the basis of the current conservation law and Faraday's law of electromagnetic induction, a redistribution process of the source-induced current of wave modes to the secondary wave is simply illustrated. The purpose of this paper is to propose a methodology to describe the inductive response of a complex electromagnetically coupled system that is divided by a conducting boundary layer. As an example, we derive the reflection coefficient and the mode conversion ratio of MHD waves at an anisotropic, inductive ionosphere by using the concept of induced current redistribution. We also demonstrate that the redistribution process of wave modes under the law of conservation of induced current also satisfies an energy conservation law in the MIAE system. However, the true merit of this method is its applicability to the highly inhomogeneous region, in which many types of waves exist and interact through the arbitrary boundary layers.

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