| Project/Area Number |
23340144
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Seikei University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MIYOSHI Yasunobu 九州大学, 理学研究院, 准教授 (20243884)
JIN Hidekatsu 情報通信研究機構, 電磁波計測研究センター, 主任研究員 (60466240)
SHINAGAWA Hiroyuki 情報通信研究機構, 電磁波計測研究センター, 主任研究員 (00262915)
NOZAWA Satonori 名古屋大学, 太陽地球環境研究所, 准教授 (60212130)
OGAWA Yasunobu 国立極地研究所, 研究教育系, 准教授 (00362210)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMAMOTO Mamoru 京都大学, 生存圏研究所, 教授 (20210560)
SAITO Akinori 京都大学, 大学院・理学研究科, 准教授 (10311739)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥20,150,000 (Direct Cost: ¥15,500,000、Indirect Cost: ¥4,650,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2011: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Keywords | 極域電離圏 / 熱圏 / EISCATレーダー / 太陽風 / オーロラ / ナトリウムライダー / 大気波動 / シミュレーション / CME / Naライダー |
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| Research Abstract |
We have studied auroral energy inputs and atmopheric waves, which are originated in the lower atmosphere, in the polar upper atmosphere. The resultant ionospheric and thermospheric variations have been also investigated both from radar and lidar observations and numerical simulations. From the radar and lidar observations, we have clarified some characteristics of the ionospheric and thermospheric variations in the periods from the solar minimum to maximum. The numerical simulations have shown enhancements of the thermospheric wind and temperature depending on the polar cap/auroral oval size. In addition, some numerical simulations were performed to reproduce the ionospheric and thermospheric variations due to propagation of the atmospheric waves from the lower atmosphere.
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