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Computer Has Solved A Historical Puzzle: Generation of Earth's Dipole Field
http://hdl.handle.net/10655/3040
http://hdl.handle.net/10655/304013249e29-2db5-470d-b7ca-734e5504aac2
Item type | 研究報告書 / Research Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2010-02-05 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Computer Has Solved A Historical Puzzle: Generation of Earth's Dipole Field | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | dynamo | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | geodynamo | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | MHD dynamo | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
"Kageyama, A.
× "Kageyama, A.× Sato, T.× The, Complexity Simulation Group" |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "Computer simulation of a magnetohydrodynamic dynamo is performed. It is found that strong dipole field is self-consistently and preferentially excited by thermal convection of an electrically conducting fluid in a rapidly rotating spherical shell. Thus, the long standing puzzle of the origin of the earth's dipole field is finally resolved. It is also found that radial components of the generated magnetic field are accumulated, with equal intensity and polarity, in all cyclonic convection columns near the outer spherical boundary. This is the reason that the dipole moment becomes dominant over other moments. Therefore, we can conclude that the preferential excitation of the dipole field is a natural consequence of well-organized convection columns." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1995-06-01 |
|||||
報告書番号 | ||||||
NIFS-359 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |