Japan Geoscience Union Meeting 2025

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[E] Poster

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

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

Sun. May 25, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

convener:Keisuke Hosokawa(Department of Communication Engineering and Informatics, University of Electro-Communications), Huixin Liu(Earth and Planetary Science Division, Kyushu University SERC, Kyushu University), Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Loren Chang(Department of Space Science and Engineering, National Central University)

5:15 PM - 7:15 PM

[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)

Keywords: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.