Ionospheric Elementary Current Systems in Spherical Coordinates and Their Application.
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- Amm Olaf
- Finnish Meteorological Institute, Geophysical Research
書誌事項
- タイトル別名
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- Ionospheric Elementary Current Systems
- 公開日
- 1997
- DOI
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- 10.5636/jgg.49.947
- 公開者
- 地球電磁気・地球惑星圏学会
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説明
Two sets of basis functions in spherical coordinates are presented, in terms of which any given ionospheric current system, consisting of horizontal sheet currents and their accompanying field-aligned currents, can be expanded, regardless of any considerations on the ionospheric conductances or the electric field. The single basis functions are called elementary current systems. One basis function set is curl-free and poloidal, and causes a toroidal magnetic field that is restricted to the area above the ionosphere. The other one is divergence-free and toroidal, and causes a poloidal magnetic field which is solely responsible for the magnetic effect of ionospheric currents below the ionosphere. The field-aligned currents are assumed to flow radially. The expansion presented is used on a model of a Cowling channel to decompose its Hall and Pedersen currents into their total divergence-free and curl-free parts. This application example shows how the analysis technique based on the elementary current expansion resolves the physically relevant primary and secondary currents inside the Cowling channel.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｇｅｏｍａｇｎｅｔｉｓｍ ａｎｄ ｇｅｏｅｌｅｃｔｒｉｃｉｔｙ
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Ｊｏｕｒｎａｌ ｏｆ ｇｅｏｍａｇｎｅｔｉｓｍ ａｎｄ ｇｅｏｅｌｅｃｔｒｉｃｉｔｙ 49 (7), 947-955, 1997
地球電磁気・地球惑星圏学会
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詳細情報 詳細情報について
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- CRID
- 1390282681486586368
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- NII論文ID
- 130003559553
- 10002204107
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- NII書誌ID
- AA00698879
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- ISSN
- 21855765
- 00221392
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- NDL書誌ID
- 4270574
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDLサーチ
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- 抄録ライセンスフラグ
- 使用不可
