[E] Oral

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

[P-EM13] Space Weather and Space Climate

Wed. May 27, 2026 9:00 AM - 10:30 AM 304 (International Conference Hall, Makuhari Messe)

Chairperson:Takahashi Toru(Electronic Navigation Research Institute, National Institute of Maritime, Port and Aviation Technology), Kataoka Ryuho(Okinawa Institute of Science and Technology), Bamba Yumi(National Institute of Information and Communications Technology)

This session aims to share the latest scientific findings to better understand how the space environment evolves across various time scales, and to discuss strategies for responding through international and interdisciplinary collaboration. We welcome contributions on topics such as long-term space climate reconstruction, cutting-edge observational and modeling studies of space weather from the Sun to the Earth's surface, and applied research including operational space weather forecasting using machine learning techniques and hazard assessments for deep space human missions to the Moon and Mars.

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9:00 AM - 9:15 AM

[PEM13-25] A New Index for Abnormal Aviation-Band VHF Propagation Associated with Sporadic E over Japan

*Satoshi Andoh¹, Hidekatsu Jin¹, Jun Sakai², Keisuke Hosokawa², Susumu Saito³, Ichiro Tomizawa², Michi Nishioka¹, Takuya Tsugawa¹ (1. National Institute of Information and Communications Technology, 2. University of Electro-Communications, 3. Electronic Navigation Research Institute)

9:15 AM - 9:30 AM

[PEM13-26] Global Ionospheric Electrodynamics by AI emulator : From Auroral to Equatorial Region

*Nilam Yashwant Bhosale¹, Ryuho Kataoka¹, Shinya Nakano², Shigeru Fujita², Sachin A Reddy³, Akira Sessai Yukimatu⁴, Aoi Nakamizo⁵, Takashi Kikuchi⁶ (1. Okinawa Institute of Science and Technology, Japan, 2. Institute of Statistical Mathematics, Tachikawa, Tokyo, Japan, 3. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, 4. National Institute of Polar Research, Tachikawa, Tokyo, Japan, 5. National Institute of Information and Communication Technology , Tokyo, Japan, 6. Institute for Space-Earth Environmental Research, Nagoya University, Japan)

9:30 AM - 9:45 AM

[PEM13-27] Impacts of the 2024 May and October superstorms on the use of Global Navigation Satellite System signals across Australia

*Brett A Carter¹, Rezy Pradipta², Elise J Blanchfield¹, Tam Dao¹, Julie Currie¹, Elizabeth Phillips¹ (1. RMIT University, 2. Boston College)

9:45 AM - 10:00 AM

[PEM13-28] Quantifying the Impact of Localized Thermospheric Density Enhancements on Low Earth Orbit Satellite Drag

*Elise J Blanchfield¹, Brett A Carter¹, Julie L Currie¹, Gail N Iles¹ (1. RMIT University)

10:00 AM - 10:15 AM

[PEM13-29] Is keV electron radiation environment worse at MEO than at GEO?

*Natalia Y Ganushkina^1,2,3, Xiaofei Shi^3,4, Yoshizumi Miyoshi³, Kazuo Shiokawa³, Naritoshi Kitamura³, Shiang-Yu Wang⁵, Yoichi Kazama⁵, Chae-Woo Jun³, Satoshi Kasahara⁶, Shoichiro Yokota⁷, Kunihiro Keika⁶, Tomoaki Hori³ (1. University of Michigan, Ann Arbor, MI, USA, 2. Finnish Meteorological Institute, Helsinki, Finland, 3. Institute for Space-Earth Environmental Research Nagoya University Nagoya, Japan, 4. University of California, Los Angeles, CA, USA, 5. Academia Sinica Institute of Astronomy and Astrophysics, Taiwan, 6. Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Japan, 7. Graduate School of Science, Osaka University, Japan)

10:15 AM - 10:30 AM

[PEM13-30] Effect of Ionospheric Spatial Gradient and Irregularities on Differential GNSS Positioning

*Jinghua LI¹, Guanyi MA¹ (1. National Astronomical Observatories, Chinese Academy of Sciences)

Session information