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A COMPUTER MODEL OF THE EARTH'S MAGNETOSPHERE
http://hdl.handle.net/2237/22076
http://hdl.handle.net/2237/22076965ce30a-e52d-4e21-b83e-c1353425d6b8
名前 / ファイル | ライセンス | アクション |
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proria_35_1.pdf (4.2 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-05-28 | |||||
タイトル | ||||||
タイトル | A COMPUTER MODEL OF THE EARTH'S MAGNETOSPHERE | |||||
言語 | en | |||||
著者 |
Ogino, Tatsuki
× Ogino, Tatsuki× Walker, Raymond J.× Ashour-Abdalla, Maha |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述 | The dependence of the magnetospheric configuration and polar cap structure on the north-south component of the interplanetary magnetic field (IMF) has been modeled by performing a three-dimensional time-dependent magnetohydrodynamlc (MHD) simulation of the interaction between the solar wind and the earth's magnetosphere. When a uniform southward IMF (Bz=-5nT) is initially imposed throughout the system, magnetic neutral lines are formed in the subsolar and midnight tail regions on the equator. The magnetic field lines are dipolar near the earth and very concave in the magnetotail. The plasma convection is antisunward near the noon-midnight meridian and the plasma sheet becomes extremely thin. When the southward IMF begins to flow into the simulation box with the solar wind it takes more than about 40 minutes until tall magnetic reconnectlon begins. For no IMF, the dayside magnetic reconnection stops. When a uniform northward IMF (Bz=5nT) is initially imposed throughout the system, the plasma sheet thickens in a small region near the noon-midnight meridian and extends into the tail lobes. When viewed from the polar cap, this appears as a narrow finger of closed field lines extending into the polar cap. The plasma sheet extension becomes less pronounced when the northward IMF begins to enter the simulation box with the solar wind. For both cases the convection near the noon-midnight meridian is sunward, and field aligned currents of the region 1 type appear on both sides of the plasma sheet extension. When the IMF is southward, the polar cap expands until it reaches 65° latitude at midnight while it shrinks to 80° for northward IMF. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | The Research Institute of Atmospherics, Nagoya University | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0077-264X | |||||
書誌情報 |
en : Proceedings of the Research Institute of Atmospherics, Nagoya University 巻 35, p. 1-23, 発行日 1988-03-25 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/22076 | |||||
識別子タイプ | HDL |