2014 Fiscal Year Annual Research Report
成層圏から超高層まで：成層圏突然昇温に対する熱圏降温現象の生成機構の解明
| Project/Area Number |
25800274
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| Research Institution | Kyushu University |
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Principal Investigator |
フイシン リュウ 九州大学, 学内共同利用施設等, 准教授 (70589639)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | atmospheric coupling |
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| Outline of Annual Research Achievements |
The achievements of this project include the following aspects. 1. The observed cooling effect of the stratosphere warming (SSW) on the upper thermosphere is confirmed by model simulation. 2. The local time and height dependence of the thermosphere response is revealed, which provides a global context to synthesize ground and satellite observations. 3. The contribution of the thermosphere response to the ionosphere response is investigated. 4. The physical mechanism for the thermosphere cooling effect due to SSW is found to be the dynamical change in the zonal mean circulation at low and middle latitudes, with additional contributions from solar radiation and thermal heat conduction.
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