講演情報
[PEM11-P17]Thermosphere response to doubling CO2: simulation results with GAIA model
*中本 雄介1、Liu Huixin1、Miyoshi Yasunobu1 (1.九州大学大学院理学府地球惑星科学専攻)
Using the whole atmosphere model GAIA, we investigate the influence of doubling CO2 on the thermosphere. Our results reveal consist cooling in the upper thermosphere as reported in previous work. Furthermore, we find that the cooling effect has distinct spatial and seasonal variation. First, it is stronger in polar regions than at lower latitudes. Second, it is stronger in local summer than in local winter. Third, it is stronger at night than at day. We investigate the mechanism for these variations by examining changes in the global circulation and composition.