2016 Fiscal Year Final Research Report
Imaging observations of acoustic waves in the upper atmosphere
Project/Area Number |
26610155
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Space and upper atmospheric physics
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Research Institution | Aichi University (2015-2016) Nagoya University (2014) |
Principal Investigator |
SUZUKI Shin 愛知大学, 地域政策学部, 准教授 (60397479)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Keywords | 音波 / 超高層大気 / 大気光 |
Outline of Final Research Achievements |
In this study, we tried to make imaging observation of acoustic waves in the upper atmosphere through OH airglow. Although we could not detect any acoustic-wave signatures in the airglow images obtained during special campaigns in 2016, this study offers valuable insights into the acoustic waves in the upper atmosphere: acoustic waves would induce small (less than 3%) airglow intensity perturbations and/or would be even less likely to propagate into the upper atmosphere compared to gravity waves. Additionally, the low-cost airglow camera developed in this study will greatly help an expansion in ground-based airglow imaging network.
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Free Research Field |
超高層物理学
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