2010 Fiscal Year Final Research Report
Study on thermosphere-ionosphere coupling by visualizations of neutral atmosphere and plasma
Project/Area Number |
20340132
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Space and upper atmospheric physics
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Research Institution | Hokkaido University |
Principal Investigator |
WATANABE Shigeto Hokkaido University, 大学院・理学研究院, 教授 (90271577)
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Project Period (FY) |
2008 – 2010
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Keywords | 電離圏 / 熱圏 / 人工中性大気雲 / ロケット実験 / オーロラ |
Research Abstract |
We investigate the ionosphere-thermosphere coupling process by visualization of neutral atmosphere and plasma. The visualizations are carried out by Lithium gas releases from rockets, which are launched by NASA and JAXA/ISAS. The Lithium gas scatters sunlights with a wavelength of 670nm, and the bright gas is observed by CCD cameras with narrow band filters at 3 ground stations. From the diffusion and the movement of the Lithium gas, we estimate neutral wind velocity, density and temperature at altitudes from 100km to 300km.
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Research Products
(39 results)
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[Journal Article] Observations of very-low-energy (<10 eV) ion outflows dominated by O+ ions in the region of enhanced electron density in the polar cap magnetosphere during geomagnetic storms2010
Author(s)
N.Kitamura, Y.Nishimura, T.Ono, Y.Ebihara, N.Terada, A.Shinbori, A.Kumamoto, T.Abe, M.Yamada, S.Watanabe, A.Matsuoka, A. W.Yau
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Journal Title
JOURNAL OF GEOPHYSCAL RESEARCH VOL.115
Pages: doi:10.1029/2010JA015601
Peer Reviewed
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[Presentation] VERY LOW-ENERGY ION OUTFLOWS DOMINATED BY OXYGEN IONS IN THE POLAR CAP MAGNETOSPHERE DURING GEOMAGNETIC STORMS2010
Author(s)
Naritoshi Kitamura, Yukitoshi Nishimura, Takayuki Ono, Yusuke Ebihara, Naoki Terada, Atsuki Shinbori, Atsushi Kumamoto, Takumi Abe, Manabu Yamada, Shigeto Watanabe, Ayako Matsuoka, Andrew W. Yau
Organizer
COSPAR
Place of Presentation
Bremen, Germany
Year and Date
20100719-20100723
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[Presentation] Thermospheric neutral wind measurement by three rocket-released Lithium clouds : WIND campaign2008
Author(s)
M.-Y.Yamamoto, S.Watanabe, Y.Yokoyama, H.Habu, T.Abe, M.Yamamoto, Y.Otsuka, A.Saito, T.Ono, M.Nakamura
Organizer
COSPAR
Place of Presentation
Montreal, Canada
Year and Date
20080713-20080719
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[Presentation] WIND rocket campaign : Lithium release experiment in evening midlatitude thermosphere2008
Author(s)
M.-Y.Yamamoto, Y.Yokoyama, H.Habu, T.Abe, S.Watanabe, M.Yamamoto, Y.Otsuka, A.Saito, T.Ono, M.Nakamura
Organizer
ISEA-12
Place of Presentation
Crete, Greece
Year and Date
20080519-20080524
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