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Coupled magnetohydrodynamic oscillations in the magnetsphere-iono-sphere system -Hall current effect-
https://doi.org/10.15094/00004141
https://doi.org/10.15094/00004141e68909ad-9c77-48cd-a55f-97c71d894b1b
名前 / ファイル | ライセンス | アクション |
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KJ00000036072 (1.9 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1993-02-01 | |||||
タイトル | ||||||
タイトル | Coupled magnetohydrodynamic oscillations in the magnetsphere-iono-sphere system -Hall current effect- | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00004141 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Fujita, Shigeru
× Fujita, Shigeru |
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著者所属(英) | ||||||
言語 | en | |||||
値 | Meteorological College | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | As the first step to a quantitative study of the magnetohydrodynamic coupled oscillations for the magnetosphere-ionosphere system, we revise the basic equations into a suitable form for computer calculations by means of the finite element method. Numerical analysis is performed by using a simple box model, taking account of the anisotropically conducting ionosphere and the insulating atmosphere. Owing to limited capacity of a computer, the effect of the ionospheric Hall current is discussed. We obtained the following results : (1) The mode conversion effect due to the Hall current gives rise to resonant coupling when the azimuthal wave number is zero (the azimuthal direction is referred to the direction perpendicular to the plane of the box model). (2) The Alfven mode perturbation is enhanced along the resonant field line but in the case of the fast magnetosonic mode the enhancement does not occur. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10756224 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Upper Atmosphere Physics 巻 6, p. 76-89, 発行日 1993-02 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |