日本地球惑星科学連合2025年大会

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[E] ポスター発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM12] Coupling Processes in the Atmosphere-Ionosphere System

2025年5月25日(日) 17:15 〜 19:15 ポスター会場 (幕張メッセ国際展示場 7・8ホール)

コンビーナ:細川 敬祐(電気通信大学大学院情報理工学研究科)、Liu Huixin(九州大学理学研究院地球惑星科学専攻 九州大学宙空環境研究センター)、大塚 雄一(名古屋大学宇宙地球環境研究所)、Chang Loren(Institute of Space Science, National Central University)

17:15 〜 19:15

[PEM12-P12] Effects of Climate Change on Es formation simulated by GAIA

*Farhan Naufal Rifqi1、Huixin Liu1、Lihui Qiu1、Chihiro Tao2 (1.Kyushu Univ.、2.NICT)

キーワード：Sporadic E, Es, Vertical ion convergence, VIC, Climate change, ionosphere-atmosphere coupling

Utilizing the Ground-to-topside Atmosphere Ionosphere model for Aeronomy (GAIA), we examined the impact of increasing CO2 on the formation of sporadic E (Es) by calculating the vertical ion convergence (VIC). Our investigation reveals that a doubling of CO2 concentration would lead to a general decrease in altitude and enhancement of VIC at altitudes 100-120 km, suggesting a possible significant alteration of Es occurrence in the future. This VIC enhancement and change are dominantly driven changes in the zonal wind at this altitude range. Our findings indicate that climate change enhances the ion convergence and is likely to enhance the frequency of Es occurrence.