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Drift of auroral absorption observed in February 1986 with the scanning beam riometer at Syowa Station
https://doi.org/10.15094/00004081
https://doi.org/10.15094/00004081ebdb7a80-eb21-427e-936c-5dc72576a934
名前 / ファイル | ライセンス | アクション |
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KJ00000036012 (2.2 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1990-11-01 | |||||
タイトル | ||||||
タイトル | Drift of auroral absorption observed in February 1986 with the scanning beam riometer at Syowa Station | |||||
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 | 10.15094/00004081 | |||||
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) |
Kikuchi, Takashi
× Kikuchi, Takashi× Yamagishi, Hisao |
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著者所属(英) | ||||||
en | ||||||
Hiraiso Solar-Terrestrial Research Center, Communications Research Laboratory/National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The scanning beam riometer at Syowa Station, Antarctica (66.1°inv. lat.) detected drift of auroral absorptions during a severe geomagnetic storm in February 1986. Eastward drifts predominated in the morning sector (0600-0930 MLT) on February 8,1986,with speeds ranging from 1.0 to 3.8km/s. These drift velocities are considerably greater than those (60-700m/s) obtained under a moderately disturbed condition reported by T. KIKUCHI et al. (Ann. Geophys., 8,431,1990) while the drift direction was the same for both cases. The eastward drift takes place with a decrease in the geomagnetic H-component, with its speed being proportional to the H-component deflection from the quiettime level. It is suggested that both the absorption drift and ionospheric currents are subjected to a common earthward electric field in the magnetosphere. Therefore, the high drift velocity may indicate an intensification of the electric field in the magnetosphere. | |||||
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 3, p. 12-23, 発行日 1990-11 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |