Simulation studies of thermospheric and ionospheric variations in cooperation with radar observations
| Project/Area Number |
20540435
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Space and upper atmospheric physics
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NOZAWA Satonori 名古屋大学, 太陽地球環境研究所, 准教授 (60212130)
MAEDA Sawako 京都女子大学, 現代社会学部, 教授 (00199613)
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| Co-Investigator(Renkei-kenkyūsha) |
MIYOSHI Yasunobu 九州大学, 大学院・理学研究院, 准教授 (20243884)
SHINAGAWA Hiroyuki 独立行政法人情報通信研究機構, 第3研究部門, 主任研究員 (00262915)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 極域電離圏 / 熱圏 / 大気大循環モデル / 数値シミュレーション / レーダー観測 / 大気上下結合 / 大気波動 / EISCATレーダー / GCM |
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| Research Abstract |
We have developed a general circulation model (GCM)which covers all the atmospheric regions : namely, from the ground to the top of the thermosphere (about 700 km altitude). Both form the numerical simulations and radar observations, we found significant variations of the polar cap thermosphere and ionosphere, which would be be-yond our understandings. In addition, in the low-latitude thermosphere, we also success-fully simulated the midnight temperature maximum (MTM)which cannot be reproduced from previous GCM simulations.
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Report
(4 results)
Research Products
(75 results)
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[Journal Article] Thermospheric temperature and density variations, Proceedings IAU Sym-posium No.264, Solar and Stellar Varia-bility Impact on Earth and Planets2010
Author(s)
Fujiwara, H., Y. Miyoshi , H. Jin, H. Shinagawa, Y. Otsuka, A. Saito, and M. Ishii
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Journal Title
Proceedings of the International Astronomical Union
Volume: 5
Issue: S264
Pages: 310-319
DOI
ISSN
1743-9213, 1743-9221
Related Report
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[Journal Article] Tidal waves in the polar lower thermosphere observed using the EISCAT long run data set obtained in September 20052010
Author(s)
Nozawa, S., Y. Ogawa, S. Oyama, H. Fu-jiwara, T. Tsuda, A. Brekke, C. M. Hall, Y. Murayama, S. Kawamura, H. Miyaoka, and R. Fujii
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Journal Title
J. Geophys. Res.
Volume: 115
Issue: A8
DOI
Related Report
Peer Reviewed
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[Journal Article] Tidal waves in the polar lower thermosphere observed using the EISCAT long run data set obtained in September 20052010
Author(s)
Nozawa, S., Y.Ogawa, S.Oyama, H.Fujiwara, T.Tsuda, A.Brekke, C.M.Hall, Y.Murayama, S.Kawamura, H.Miyaoka, R.Fujii
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Journal Title
Journal of Geophysical Research
Volume: 115
Related Report
Peer Reviewed
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[Journal Article] Spatial evolution of frictional heating and the predicted thermospheric wind effects in the vicinity of an auroral arc measured with the Sondrestrom incoherent-scatter radar and the Reimei satellite2009
Author(s)
Oyama, S., T.T.Tsuda, T.Sakanoi, Y.Obuchi, K.Asamura, M.Hirahara, A.Yamazaki, Y.Kasaba, R.Fujii, S.Nozawa, B.J.Watkins
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Journal Title
Journal of Geophysical Research 114
Related Report
Peer Reviewed
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[Journal Article] Temperature enhancements and vertical winds in the lower thermosphere associated with auroral heating during the Dynamics and Energetics of the Lower Thermosphere in Aurora (DELTA) campaign2009
Author(s)
Kurihara, J., S.Oyama, S.Nozawa, T.Tsuda, R.Fujii, Y.Ogawa, H.Miyaoka, N.Iwagami, T.Abe, K.-I.Oyama, M.Kosch, A.L.Aruliah, E.Griffin, K.Kauristie
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Journal Title
Journal of Geophysical Research 114
Related Report
Peer Reviewed
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