| Project/Area Number |
63044070
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Institution | Tokai University (1989-1990)
Kyoto University (1988) |
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Principal Investigator |
SUGIURA Masahisa (1990) Institute of Research and Development, Tokai University, 開発技術研究所, 教授 (90179135)
M Sugiura (1990) 東海大学, 教授
SUGIURA Masahisa (1988-1989) 東海大, 開発技術研究所, 教授
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| Co-Investigator(Kenkyū-buntansha) |
BURCH James L. Southwest Research Institute, 宇宙科学研究所, 部長
WINNINGHAM J. David Southwest Research Institute, 宇宙科学研究部, 研究主任
CRAVEN John D. Department of Physics and Astronomy, University of Iowa, 物理学天文学科, 準教授
AGGSON Thomas L. NASA - Goddard Space Flight Center, ゴダード宇宙飛翔センター, 研究員
SLAUIN James 米国航空宇宙局, ゴダード宇宙飛翔センター, 研究課長
HOFFMAN Robe 米国航空宇宙局, ゴダード宇宙飛翔センター, 主任研究員
IYEMORI Toshihiko Faculty of Science, Kyoto University, 理学部, 助教授 (40144315)
TERASAWA Toshio Faculty of Science, Kyoto University, 理学部, 助教授 (30134662)
ARAKI Tohru Faculty of Science, Kyoto University, 理学部, 教授 (50025433)
SLAVIN James A. NASA - Goddard Space Flight Center
HOFFMAN Robert A. NASA - Goddard Space Flight Center
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| Project Period (FY) |
1988 – 1990
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| Project Status |
Completed (Fiscal Year 1990)
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| Budget Amount *help |
¥10,500,000 (Direct Cost: ¥10,500,000)
Fiscal Year 1990: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1989: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1988: ¥3,500,000 (Direct Cost: ¥3,500,000)
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| Keywords | field-aligned current / magnetosphere-ionosphere coupling / magnetospheric current / magnetospheric plasma / auroral image / Dynamics Explorer satellites / 極光 |
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| Research Abstract |
One of the important objectives of this project is to transfer from the Goddard Space Flight Center to the Kyoto University the entire data set of the Dynamics Explorer (DE) 1 and 2 magnetometer observations. The transfer of the large volume of data on the order of several gigabits requires a careful planning and coordination. The construction of database at the Kyoto University had to be made with care so that the subsequent data analyses can be conducted with high efficiency and that the system would be compatible with that at Goddard to maximize the benefit of the joint analysis effort. For investigations of the magnetosphere-ionosphere coupling processes the electric field and plasma data and auroral images are often needed in addition to the magnetic field data. In this regard, cooperation from the relevant DE Principal Investigators has been obtained. Thus far the high time resolution DE-2 magnetic and electric field data have been transferred. The transfer of the DE-1 magnetometer data is being delayed due to a delay in the data reduction at Goddard ; however, the data transfer is expected to be completed by the end of 1992. A Preparations is being made for transferring some of the plasma data in the future.
For the data analysis the investigations of (a) the relationship between the magnetic field perturbations and the electric field in the field-aligned current regions and (b) the field-aligned current near the dayside cusp have been given a high priority. Other subjects investigated include, for instance : the field-aligned currents, plasma convection, and electron precipitation during periods of extreme magnetic quiescence, toroidal standing waves excited by a storm sudden commencement, and spatial relationships between region 2 field-aligned currents and electron and ion precipitation in the evening sector
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