| Project/Area Number |
24340121
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial 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 | National Institute of Polar Research |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ABO Makoto 首都大学東京, システムデザイン研究科, 教授 (20167951)
KAWAHARA Takuya 信州大学, 工学部, 准教授 (40273073)
SUZUKI Hidehiko 明治大学, 理工学部, 講師 (40582002)
FUJIWARA Hitoshi 成蹊大学, 理工学部, 教授 (50298741)
EJIRI Mitsumu 国立極地研究所, 研究教育系, 助教 (80391077)
NISHIYAMA Takanori 国立極地研究所, 研究教育系, 助教 (00704876)
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| Co-Investigator(Renkei-kenkyūsha) |
MIYOSHI Yasunobu 九州大学, 理学研究院, 准教授 (20243884)
TSUTSUMI Masaki 国立極地研究所, 研究教育系, 准教授 (80280535)
TANAKA Yoshimasa 国立極地研究所, 研究教育系, 特任准教授 (50425766)
WATANABE Junichi 国立天文台, 天文情報センター, 教授 (50201190)
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| Research Collaborator |
TSUDA Takuo
MATSUDA Takashi
KERO Johan
YUE Jia
VADAS Sharon
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2014: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2012: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
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| Keywords | 超高層物理学 / ライダー / 中間圏界面 / 流星フラックス / 金属原子 / 大気大循環モデル / レーダー観測 / 下部熱圏 / 共鳴散乱 |
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| Outline of Final Research Achievements |
A high-performance laser has been applied to develop a resonance scatter lidar for observations of the bottom part of the upper atmosphere around 100 km height in order to clarify on the transport and constituent variations which are closely related to the chemical processes there. The observations at mid-latitude in the northern hemisphere and in the Antarctic have been carried out together with novel observations by large aperture atmospheric radar and airglow imaging etc. The selected topics achieved are as follows. High altitude sodium atom layer has been found in the thermosphere. Meteor orbits, meteor flux and effects on the atmosphere have been estimated. Development of calcium ion layer by a lidar, which is comparable to the ultra large aperture radar observation of the ionosphere, and its observation have clarified vertical couplings.
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