Elucidation of magnetospheric convection mechanisms during northward interplanetary magnetic field periods
Project/Area Number |
24540479
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Space and upper atmospheric physics
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Research Institution | Kyushu University |
Principal Investigator |
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Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
Keywords | シータオーロラ / 沿磁力線電流 / プラズマ対流 / 磁気圏ダイナモ |
Outline of Final Research Achievements |
Using global numerical simulation, we elucidated the theta aurora formation processes when the dawn-dusk component of the interplanetary magnetic field switches. There appears a unipolar field-aligned current system on the theta aurora. In the magnetospheric source region of the currents, expanding slow mode disturbances convert plasma thermal energy to electromagnetic energy to maintain the steady state field-aligned current system. This energy conversion process represents the essential mechanism of the magnetospheric dynamo in general, not just limited to the theta aurora.
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Report
(4 results)
Research Products
(47 results)
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[Journal Article] Capacity Building: A Tool for Advancing Space Weather Science2014
Author(s)
Cardinal, M. G., A. Yoshikawa, H. Kawano, H. Liu, M. Watanabe, S. Abe, T. Uozumi, G. Maeda, T. Hada, and K. Yumoto
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Journal Title
Space Weather
Volume: 12
Issue: 10
Pages: 1-6
DOI
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Peer Reviewed / Open Access
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[Presentation] Current status of the MAGDAS Project: The largest magnetometer array in the world2014
Author(s)
Maeda, G., K. Yumoto, H. Kawano, A. Yoshikawa, A. Ikeda, T. Uozumi, H. Liu, S. Abe, M. Cardinal, and M. Watanabe
Organizer
Asia Oceania Geoscience Society(AOGS) Annual Meeting 2014
Place of Presentation
Sapporo
Year and Date
2014-07-28 – 2014-08-01
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[Presentation] Capacity building activities at ICSWSE2013
Author(s)
Cardinal, M.G., A. Yoshikawa, H. Kawano, H. Liu, M. Watanabe, S. Abe, T. Uozumi, G. Maeda, T. Hada, and K. Yumoto
Organizer
International CAWSES-II Symposium
Place of Presentation
Nagoya
Related Report
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[Presentation] MAGDAS activities of year 20132013
Author(s)
Maeda, G., K. Yumoto, H. Kawano, A. Yoshikawa, H.Liu, M. Watanabe, S. Abe, T. Uozumi, A. Ikeda, and M. G. Cardinal
Organizer
International CAWSES-II Symposium
Place of Presentation
Nagoya
Related Report
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[Presentation] MAGDAS Activities in Australia Since 20052013
Author(s)
Maeda, G., K. Yumoto, H. Kawano, A. Yoshikawa, A. Ikeda, T. Uozumi, H. Liu, S. Abe, M. Watanabe, M. Cardinal
Organizer
AOGS Annual Meeting 2013
Place of Presentation
Brisbane, Australia
Related Report
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[Presentation] MAGDAS project activities under ISWI2012
Author(s)
Maeda, G., K. Yumoto, H. Kawano, A. Yoshikawa, H. Liu, M. Watanabe, S. Abe, T. Uozumi, and A. Ikeda
Organizer
International Conference on Radiation Belts and Space Weather
Place of Presentation
Daejeon, Korea
Related Report
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