Long-term variations of the atmosphere dynamics in the mesosphere and lower-thermosphere region in the tropics
| Project/Area Number |
19403009
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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 | 海外学術 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Kyoto University |
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Principal Investigator |
TSUDA Toshitaka Kyoto University, 生存圏研究所, 教授 (30115886)
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| Co-Investigator(Kenkyū-buntansha) |
KODAMA Yasumasa 弘前大学, 大学院・理工学研究科, 准教授 (30205421)
SHIBAGAKI Yoshiaki 大阪電気通信大学, 大学院・工学研究科, 准教授 (00319592)
FURUMOTO Jun-ichi 京都大学, 生存圏研究所, 助教 (10402934)
中村 卓司 京都大学, 生存圏研究所, 准教授 (40217857)
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| Co-Investigator(Renkei-kenkyūsha) |
NAKAMURA Takuji , 国立極地研究所, 教授 (40217857)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2009: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2008: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2007: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Keywords | 中間圏・熱圏下部 / インドネシア / 大気波動 / 中波帯(MF)レーダー / 流星レーダー / 赤道大気 / 中間圏・熱圏下部領域 / 中波帯(MMF)レーダー / GPS掩蔽 / 熱帯降雨観測衛星(TRMM) |
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| Research Abstract |
We observed wind velocity in the mesosphere and lower thermosphere (MLT) region at 70-110km altitude, by means of a meteor radar and two medium frequency (MF) radars that are operated in the tropics under international collaboration between Japan, Indonesia and Australia. Statistical analyses of the radar data clarified quasi-biennial and semi-annual oscillations in the zonal winds. The mean meridional flow showed a decadal scale trend, which could be related with the global warming and/or a solar cycle.
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Report
(4 results)
Research Products
(107 results)
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[Journal Article] Longitudinal variability in intra-seasonal oscillation in the tropical mesosphere and lower thermosphere region2009
Author(s)
Rao., R.K., S. Gurubaran, S. Sathishkumar, S. Sridharan, T. Nakamura, T. Tsuda, H. Takahashi, P. Batista, B.R. Clemesha, R.A. Buriti, D.V. Pancheva, N.J. Mitchell
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Peer Reviewed
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[Journal Article] Longitudinal variability in intraseasonal oscillation in the tropical mesosphere and lower thermosphere region2009
Author(s)
R.Kondala Rao, S.Gurubaran, S.Sathishkumar, S.Sridharan, T.Nakamura, T.Tsuda, H.Takahashi, P.P.Batista, B.R.Clemesha, R.A.Buriti, D.V.Pancheva, N.J.Mitchell
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Peer Reviewed
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[Journal Article] Seasonal variation of short-period (<2 hr) gravity wave activity over Gadanki, India (13. 5N, 79. 2E)2008
Author(s)
Dutta, G., Tsuda, T., Kumar, P.V., Kumar, M.C. A, Alexander, S.P., Kozu, T.
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Peer Reviewed
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[Journal Article] HARIMAU Radar-Profiler Network over the Indonesian Maritime Continent : AGEOSS early achievement for hydrological cycle and disaster prevention2008
Author(s)
M.D.Yamanaka, H.Hashiguchi, S.Mori, P.Wu, F.Syamsudin, T.Manik, Hamada J.-I., M.K.Yamamoto, H.Kawashima, Y.Fujiyoshi, N.Sakurai, M.Ohi, R.Shirooka, M.Katsumata, Y.Shibagaki, et al
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Journal Title
J.Disaster Res 3
Pages: 78-88
Related Report
Peer Reviewed
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[Journal Article] Seasonal variation of short-period(<2hr)gravity wave activity over Gadanki, India(13.5N, 79.2E)2008
Author(s)
Dutta, G., Tsuda, T., Kumar, P.V., Kumar, M.C.A, Alexander, S.P., Kozu, T.
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Peer Reviewed
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[Journal Article] Seasonal variation of short-period (<2 hr) gravity wave activity over Gadanki, India (13. 5N, 79. 2E)2008
Author(s)
Dutta, G., Tsuda, T., Kumar, P. V., Kumar, M. C. A, Alexander, S. P., Kozu, T.
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Peer Reviewed
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[Presentation] 1.3-GHzウインドプロファイラ及びTRMM降雨レーダー観測による海洋大陸における地域的降水日変化2009
Author(s)
田畑悦和, 橋口浩之, 山本真之, 山本衛, 山中大学, 森修一, 柴垣佳明, 下舞豊志, Fadli Syamsudin, Timbul Manik, Erlansyah, Wawan Setiawan, Wilhelm Laasut
Organizer
日本気象学会秋季大会
Place of Presentation
福岡市
Year and Date
2009-11-25
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[Presentation] Characteristics of Diurnal Variation in Indonesian Maritime Continent Based on Wind Profiler Observations2009
Author(s)
Tabata, H.Hashiguchi, M.K.Yamamoto, M.Yamamoto, Y.Shibagaki, T.Shimomai, M.D.Yamanaka, S.Mori, Fadli Syamsudin, Timbul Manik, rlansyah, Wawan Setiawan, Wilhelm Lasut
Organizer
The 12th international workshop on technical and scientific aspects on MST radar
Place of Presentation
London, Canada
Year and Date
2009-05-09
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[Presentation] 1. 3-GHzウインドプロファイラ及びTRMM降雨レーダー観測による海洋大陸における地域的降水日変化2009
Author(s)
田畑悦和, 橋口浩之, 山本真之, 山本衛, 山中大学, 森修一, 柴垣佳明, 下舞豊志, F. Syamsudin, T. Manik, Erlansyah, W. Setiawan, W. Laasut
Organizer
日本気象学会2009年度秋季大会
Place of Presentation
福岡市
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[Presentation] 大学間連携プロジェクト「超高層大気長期変動の全休地上ネットワーク観測・研究」-メタデータ・データベースの開発-2009
Author(s)
林寛生, 小山幸伸, 堀智昭, 田中良昌, 河野貴久, 吉田大紀, 上野悟, 金田直樹, 阿部修司, 鍵谷将人, 三次由純, 岡田雅樹
Organizer
中間圏・熱圏・電離圏 (MLT) 研究会
Place of Presentation
Kyoto
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