| Project/Area Number |
22244060
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 | Japan Aerospace Exploration Agency |
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Principal Investigator |
NAKAMURA MASATO 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (20227937)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUDA Yoshihisa 東京学芸大学, 教育学部, 教授 (60134772)
TAKAGI Masahiro 京都産業大学, 理学部, 准教授 (00323494)
IMAMURA Takeshi 宇宙航空研究開発機構, 准教授 (40311170)
HASHIMOTO George 岡山大学, 自然科学研究科, 准教授 (10372658)
YAMAMOTO Masaru 九州大学, 応用力学研究所, 准教授 (10314551)
OHTSUKI Shoko 専修大学, 商学部, 准教授 (90523291)
OGOHARA Kazunori 滋賀県立大学, 工学部, 助教 (50644853)
HAYASHI Shosuke 神戸大学, 理学部, 教授 (20180979)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥34,450,000 (Direct Cost: ¥26,500,000、Indirect Cost: ¥7,950,000)
Fiscal Year 2013: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2012: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2011: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2010: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
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| Keywords | 金星大気 / 大気力学 / 大気科学 / 雲物理 / Venus Express / あかつき / 金星 / 大気 |
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| Research Abstract |
The mechanism of the atmospheric circulation and the transport processes of atmospheric constituents were studied by analyzing observational data taken by Venus Express and ground-based observations. The data were processed using the data analysis softwares developed for the Japanese Venus arbiter Akatsuki, which will be inserted into a Venus orbit in 2015. The analysis revealed various aspects of the atmosphere, such as three-dimensional structures of planetary-scale waves, dissipation of gravity waves at high altitudes, complicated vertical distributions of the upper haze layer, latitudinal and local-time dependence of the cloud height, and long-term variations of the cloud albedo. Numerical simulations, and the observed features were compared with those model results to understand the mechanism. These studies clarified remaining issues to be solved, such as the role of meso-scale processes, chemical processes governing the cloud albedo, and the mechanism of climate variation.
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