| Project/Area Number |
26400479
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Space and upper atmospheric physics
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| Research Institution | Tomakomai National College of Technology (2016)
Kochi University of Technology (2014-2015) |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
WATANABE Shigeto 北海道情報大学, 経営情報学部, 教授 (90271577)
YAMAMOTO Masa-yuki 高知工科大学, システム工学群, 教授 (30368857)
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| Research Collaborator |
Larsen Miguel クレムソン大学, 教授
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | 熱圏風 / 熱圏大気 / 電離圏プラズマ / カスプ / プラズマドリフト / サウンディングロケット / 化学物質放出 / 海外学術調査 / バリウム / chemical release |
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| Outline of Final Research Achievements |
An experiment of barium (Ba) and strontium (Sr) release from rocket was executed to investigate neutral density enhancement in the cusp region. Ba is ionized by extreme ultraviolet light. The resonance scattering light from Ba, Ba+ and Sr work as tracers of background neutral wind and plasma drift. From the observation, direction of neutral wind and plasma drift was different. Furthermore, strong neutral wind shear was found. The mechanism of the neutral density enhancement was not addressed because the chemicals was released out of the center of the cusp. However, the scheme of simultaneous observation of neutral wind and plasma drift was established.
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