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Solar activity dependence of two types of east-west geomagnetic disturbances at mid latitudes
https://doi.org/10.15094/00006378
https://doi.org/10.15094/00006378432c8873-fb1e-4a1b-b8a1-df52154b5d2d
名前 / ファイル | ライセンス | アクション |
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KJ00000729584 (856.3 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2004-08-01 | |||||
タイトル | ||||||
タイトル | Solar activity dependence of two types of east-west geomagnetic disturbances at mid latitudes | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | solar cycle, magnetic disturbances, magnetic storm, substorm | |||||
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 | 10.15094/00006378 | |||||
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 | Solar activity dependence of two types of east-west geomagnetic disturbances at mid latitudes | |||||
著者名(英) |
Nakano, Shin'ya
× Nakano, Shin'ya |
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著者所属(英) | ||||||
en | ||||||
Department of Geophysics, Graduate School of Science, Kyoto University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | It has been suggested that auroral electrojets are of two types, and each of them is associated with a different current system: the wedge current system and a current system related with magnetospheric convection. In this paper, solar cycle dependences of two different current systems were examined. Each of the two current systems is associated with a different field-aligned current system, which generates a different pattern of geomagnetic disturbances at mid latitudes. In order to examine solar cycle dependences of the two current systems, we investigated those of mid-latitude geomagnetic disturbances. The results suggests that the two current systems have different solar cycle dependences. The activity of the current system associated with convection has a good correlation with $D_{st$ activity, and it tends to be enhanced around a solar maximum. On the other hand, the wedge current system is enhanced in the late declining phase of the solar cycle. It was also suggested that relative contributions of the two current systems to auroral electrojet activity has a solar cycle dependence. The contribution of the wedge current system to auroral electrojet activity is rather small around a solar maximum, while it becomes considerable around a solar minimum. | |||||
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 18, p. 23-34, 発行日 2004-08 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |