Microscale processes in the Venus atmosphere revealed by radio occultation
| Project/Area Number |
24540482
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | 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 | Japan Aerospace Exploration Agency |
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Principal Investigator |
IMAMURA Takeshi 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 准教授 (40311170)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 電波掩蔽 / 電波ホログラフィ / Full Spectral Inversion / 金星大気 / 惑星大気 / 金星 / ホログラフィ / Full Spectrum Inversion |
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| Outline of Final Research Achievements |
In the previous radio occultation observations, geometrical optics method has been used for retrieving refractive index profiles from measured phase time series, and multipath effect and diffraction effect prevented us from obtaining detailed atmospheric structures. We applied a radio holographic analysis to radio occultation data of Venusian atmosphere to solve these problems, and successfully revealed fine structures related to gravity waves and inversion layers.
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Report
(4 results)
Research Products
(10 results)
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[Journal Article] Outflow structure of the quiet Sun corona probed by spacecraft radio scintillations in strong scattering2014
Author(s)
57.Imamura, T., M. Tokumaru, H. Isobe, D. Shiota, H. Ando, M. Miyamoto, T. Toda, B. Häusler, M. Pätzold, A. Nabatov, A. Asai, K. Yaji, M. Yamada, M. Nakamura
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Journal Title
The Astrophysical Journal
Volume: 788
Issue: 2
Pages: 117-117
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Outflow structure of the quiet Sun corona probed by spacecraft radio scintillations in strong scattering2014
Author(s)
Imamura, T., M. Tokumaru, H. Isobe, D. Shiota, H. Ando, M. Miyamoto, T. Toda, B. Häusler, M. Pätzold, A. Nabatov, A. Asai, K. Yaji, M. Yamada, M. Nakamura
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Journal Title
Astrophys. J.
Volume: 印刷中
Related Report
Peer Reviewed
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[Journal Article] Dual-spacecraft radio occultation measurement of the electron density near the lunar surface by the SELENE mission2012
Author(s)
H. Ando, T. Imamura, A. Nabatov, Y. Futaana, T. Iwata, H. Handa, K. Matsumoto, N. Mochizuki, Y. Kono, H. Noda, Q. Liu, K. Oyama, Z. Yamamoto, A. Saito
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Journal Title
J. Geophys. Res.
Volume: 117
Issue: A6
DOI
Related Report
Peer Reviewed
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