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Latitudinal structure of the nightside region 1 field-aligned current observed from the EXOS-D satellite
https://doi.org/10.15094/00006282
https://doi.org/10.15094/00006282e9b2d6ac-6380-4ad0-9ce9-027d898220ed
名前 / ファイル | ライセンス | アクション |
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KJ00000048022 (1.5 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1999-09-01 | |||||
タイトル | ||||||
タイトル | Latitudinal structure of the nightside region 1 field-aligned current observed from the EXOS-D satellite | |||||
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 | 10.15094/00006282 | |||||
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) |
Yamamoto,Takashi
× Yamamoto,Takashi× Inoue,Shoshi× Ozaki,Masao |
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著者所属(英) | ||||||
en | ||||||
Department of Earth and Planetary Physics, University of Tokyo/Aichi College of Technology/Institute of Industrial Science, University of Tokyo | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The average pattern of region 1 field-aligned current (FAC) of IIJIMA and POTEMRA (J. Geophys. Res., 81, 2165, 1976a; J. Geophys. Res., 83, 599, 1978) spans 2-3° in magnetic latitude. Using the magnetic field data acquired with the EXOS-D satellite, we notice that sharp variations of magnetic field perturbation, showing the high current densities of several micro-amperes per squared meter at the ionospheric height, are included in the region 1 current zone. In this paper, we focus our analysis on a sharp gradient of magnetic field change within 1° in latitude. In the 20-04 MLT sector, the thin current sheet as an important part of the region 1 FAC system is often found to be just equatorward of the boundary FAC system (FuKUNism et al, J. Geophys. Res., 98, 11235, 1993). A statistical survey of more than 200 satellite's crossings of the region 1 zone (in the 17-05 MLT range) shows that about 60% of the identified region 1 current systems have the latitudinal structure of a thin (on average, 0.5°) current sheet with current intensity greater than one third of the total FAC intensity of the region 1 system. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11397422 | |||||
書誌情報 |
Advances in polar upper atmosphere research 巻 13, p. 105-118, 発行日 1999-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |