| Project/Area Number |
07044053
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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 | TOHOKU UNIVERSITY |
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Principal Investigator |
FUKUNISHI Hiroshi Graduate School of Science, Tohoku University, Professor, 大学院・理学研究科, 教授 (90099937)
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| Co-Investigator(Kenkyū-buntansha) |
M.J. Engebre オウグスバーグ大学, 物理学科, 教授
J.H. Doolitt ロッキード研究所, 研究員
A. Wolfe ニューヨーク市立大学, 教授
C.G. Mclenna ATTベル研究所, 研究員
L.J. Lanzero ATTベル研究所, 主任研究員
U.S. Inan スタンフォード大学, STAR研究所, 教授
T.J. Rosenbe メリーランド大学, 物理科学技術研究所, 教授
TAKAHASHI Yukihiro Graduate School of Science, Tohoku University, 大学院・理学研究科, 助手 (50236329)
TAGUCHI Makoto National Institute of Polar Research, 南極圏環境モニタリング研究センター, 助教授 (70236404)
WATANABE Shigeto Graduate School of Science, Tohoku University, 大学院・理学研究科, 助教授 (90271577)
YAMAGISHI Hisao National Institute of Polar Research, 研究系, 助教授 (20132714)
SATO Natsuo National Institute of Polar Research, 研究系, 教授 (50132709)
HAYASHI Kanji Graduate School of Science, University of Tokyo, 大学院・理学研究科, 助教授 (60011730)
ARAKI Tohru Graduate School of Science, Kyoto University, 大学院・理学研究科, 教授 (50025433)
LANZEROTTI L.J ATT Bell Laboratory
INAN U.S STAR Lab., Stanford University
ROSENBERG T.J Institute for Physical Science and Technology, University of Maryland
MCLENNAN C.G ATT Bell Laboratory
ENGEBRETSON M.J Augusburg University
DOOLITLE J.H Lockheed Laboratory
WOLFE A New York City University
ENGEBRETSON エム.ジェイ オウグスバーグ大学, 物理学科, 教授
DOOLITTLE J. ロッキード研究所, 研究員
WOLFE A. ニューヨーク市立大学, 教授
MCLENNAN C.G ATTベル研究所, 研究員
LANZEROTTI L ATTベル研究所, 主任研究員
INAR U.S. スタンフォード大学, STAR研究所, 教授
ROSENBERG T. メリーランド大学, 物理科学技術研究所, 教授
ENGEBRETSON エム.ジェイ. オウグスバーグ大学, 物理学科, 教授
INAN U.S. スタンフォード大学, STAR研究所, 教授
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 1996: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1995: ¥2,600,000 (Direct Cost: ¥2,600,000)
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| Keywords | Polar Cap / Aurora / AGO / Magnetic Disturbances |
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| Research Abstract |
Auroras and geomagnetic disturbances have been investigated at Automatic Geophysical Observatories (AGO) in the polar cap region where nobody had installed the instruments to observe those phenomena. We developed the instruments to observe auroras and geomagnetic disturbances and operated at 6 AGO stations with corroborations with scientists of the United States. The activities are as follows.
1. Developments of search coil magnetometer and photometer
We made two search coil magnetometers for back up of magnetometers operated at AGO stations. We also made photometers with very high data sampling.
2. Tests of search coil magnetometer and photometer
Fukunishi, Takahashi and Fujito checked magnetometers and photometers at Yucca Ridge of Colorado, USA with a group of Stanford University. We obtained good sensitivities to observe auroras and geomagnetic disturbances at AGO stations.
3. Set up at AGO station
On October, 1995, we set up our search coil magnetometers for AGO-5 and AGO-6 stations at
… More
MacMurdo station of Antarctica.
4. Analyzes of AGO data
On December, 1995, Fukunishi and Takahashi visited Stanford University to analyze the data of auroras, magnetic fields and ELF-VLF waves obtained at AGO stations. On December, 1996, Fukunishi and Katsuyama visited Stanford University again to analyze the AGO data in detail. Fukunishi visited Laboratory of Antarctica of UK to analyze the AGO data and to have discussions on August, 1996. Prof.Engebretson of Augsburg University visited Tohoky University to compare between his obtained flux gate magnetometer data and our search coil magnetometer data.
5. Discussions of publication and future work
Fukunishi visited Church University of UK to present our results and future plan on August, 1996 and stayd for one week. Fukunishi and Katsuyama visited Stanford University to discuss future plan on December, 1996.
We found new results from the detailed analyzes of AGO data. One of the interesting results is the correlations between magnetic impulse events (MIE) and Pc 1 bursts. We analyze the events in detail with Dr.Lanzerotti of Bell Laboratory and Prof.Engebretson of Augsburg University who indicates the good correlations between MIE and ELF-VLF waves. All instruments are still working well at 6 AGO stations. We are investigating our AGO data with satellite and radar data. Those results will provide us more large progress in understanding polar cap phenomena. Less
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