2013 Fiscal Year Final Research Report
Analysis of gravity wave vertical propagation using optical and radio measurements
Project/Area Number |
23740368
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Space and upper atmospheric physics
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Research Institution | Nagoya University |
Principal Investigator |
SUZUKI Shin 名古屋大学, 高等研究院(太), 特任助教 (60397479)
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Project Period (FY) |
2011 – 2013
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Keywords | 大気重力波 / 大気光 / リモートセンシング / 大気上下結合 / 国際協同観測実験 |
Research Abstract |
We analysed the vertical propagation of gravity waves from the lower to the upper atmosphere from combined measurements with an airglow imager and lidars/radars in the northern Europe. Ray-tracing analysis suggested that the gravity wave observed in the mesospheric airglow was generated by a distortion of the polar jet at the tropopause height, approximately 2600 km away from the airglow observation site. This result implies that gravity waves could affect atmospheric dynamics in the ionosphere in regions far away from their source. Based on this idea, we also developed an analysis environment for simultaneous airglow imaging network data from multipoint observations in Japan in order to investigate wave propagation structures with a spatial extent covering Japan. By using the network analysis, we showed, for the first time, "observational evidence for ducted gravity wave propagation over a very large distance" and "large concentric airglow structures induced by Typhoon Pongsona".
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Research Products
(14 results)
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[Presentation] Combined measurements of gravity waves with an airglow imager and ALOMAR lidars in Norway2013
Author(s)
Suzuki, S., F.-J. Lubken, G. Baumgarten, U. Berger, N. Kaifler, P. Hoffmann, R. Eixmann, B. P. Williams, and T. Nakamura
Organizer
The 3rd International Symposium on the Arctic Research
Place of Presentation
Tokyo, Japan
Year and Date
2013-01-15
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[Presentation] Vertical propagation of gravity waves in the middle and upper atmosphere2011
Author(s)
Suzuki, S., F.-J. Lubken, G. Baumgarten, U. Berger, N. Kaifler, P. Hoffmann, R. Eixmann, B. P. Williams, and T. Nakamura
Organizer
AGU Fall Meeting
Place of Presentation
San Francisco, USA
Year and Date
2011-12-07
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[Presentation] Gravity wave propagation from lower to upper atmosphere derived from airglow and lidar measurements2011
Author(s)
Suzuki, S.,G. Baumgarten, B. Kaifler, N. Kaifler, B. P. Williams, T. Nakamura, M. K. Ejiri, H. Suzuki, M. Gerding, and F.-J. Lubken
Organizer
International Union of Geophysics and Geodesy Conference
Place of Presentation
Melbourne, Australia
Year and Date
2011-07-03
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