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Northern/southern hemisphere asymmetry of sc/si in the nighttime sector
https://doi.org/10.15094/00004267
https://doi.org/10.15094/00004267412f3a56-1639-4e74-a62d-6536851f552e
名前 / ファイル | ライセンス | アクション |
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KJ00000035970 (788.0 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1998-12-01 | |||||
タイトル | ||||||
タイトル | Northern/southern hemisphere asymmetry of sc/si in the nighttime sector | |||||
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 | 10.15094/00004267 | |||||
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) | |||||
論文名よみ | ||||||
その他のタイトル | Northern/southern hemisphere asymmetry of sc/si in the nighttime sector | |||||
著者名(英) |
Kitamura,Kentarou
× Kitamura,Kentarou× Yumoto,Kiyohumi× the 210°MM Magnetic Observation Group |
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著者所属(英) | ||||||
en | ||||||
Department of Earth and Planetary Sciences, Kyushu University/Department of Earth and Planetary Sciences, Kyushu University/ | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Magnetic field data from two pairs of conjugate stations along the 210°MM (Magnetic Meridian) are analyzed to re-examine characteristics of northern/southern hemisphere asymmetry of sc (sudden commencement)/si (sudden impulse) magnetic variations. We found that the seasonal variation of the asymmetry of sc/si can be seen even in the nighttime sector, where the ionospheric conductivity is much lower than that in the daytime sector. In order to interpret the observational fact, we have estimated the magnetic fields in the magnetosphere produced by the Chapman-Ferraro current (CF current) flowing at the dayside magnetopause, by using the Tsyganenko 96 model. It is found that the observed northern/southern hemisphere asymmetry of sc/si in the nighttime sector can be explained by invoking the seasonal variation in the tilt angle of Earth's dipole axis. | |||||
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 12, p. 108-114, 発行日 1998-12 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |