[E] Oral

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

[P-EM13] Dynamics of the Inner Magnetospheric System

Wed. May 28, 2025 1:45 PM - 3:15 PM 302 (International Conference Hall, Makuhari Messe)

convener:Kunihiro Keika(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo ), Yoshizumi Miyoshi(Institute for Space-Earth Environmental Research, Nagoya University), Jerry Goldstein(Southwest Research Institute), YIXIN Sun(Peking University), Chairperson:Chae-Woo Jun(Institute for Space-Earth Environmental Research, Nagoya University), Kunihiro Keika(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Kazuhiro Yamamoto(Institute for Space-Earth Environmental Research)

The inner magnetosphere is a highly dynamic and variable region full of cold plasma, energetic particles and wave activities, which is primarily influenced by changes in energy input from the solar wind via the magnetotail, the plasma supply from the ionosphere, and electrodynamic magnetosphere-ionosphere coupling. This complex, driven and self-modifying system - of both plasmas and neutrals - is shaped by various processes that involve cross-regional, cross-scale, and cross-energy coupling. To achieve a deeper understanding of this dynamic environment, it is crucial to conduct comprehensive studies utilizing coordinated observations from multi-point satellite measurements, ground-based networks, and theoretical modeling. During the 24th and 25th solar cycles, advancements in this area have been facilitated by multiple satellite missions (including the Van Allen Probes, MMS, THEMIS, DSX, Arase, and CubeSats), as well as coordinated ground-based observations (such as THEMIS-GBO, SuperDARN, EISCAT, magnetometers, and riometers) and numerical simulations (encompassing global kinetic models, MHD models, micro PIC, hybrid models, and particle tracing simulations).
This session invites submissions of papers highlighting recent research findings related to the inner magnetosphere and its interactions with adjacent regions, including the ionosphere and the outer magnetosphere. We welcome relevant data analysis and contributions from various models and simulations. The initial results of recent severe storm events, such as May and October 2024, are also highly welcome. We encourage papers that discuss new projects, such as sounding rocket experiments, data assimilation and machine learning approaches, and CubeSat projects, as well as insights into future spacecraft missions.

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1:45 PM - 2:05 PM

[PEM13-11] Latitudinal dependence of ground VLF transmitter wave power in the inner magnetosphere

*Zhiyang Xia¹, Lunjin Chen¹, Wenyao Gu¹, Richard B. Horne², Yoshizumi Miyoshi³, Yoshiya Kasahara⁴, Atsushi Kumamoto⁵, Fuminori Tsuchiya⁵, Satoko Nakamura³, Masahiro Kitahara⁵, Iku Shinohara⁶ (1.University of Texas at Dallas, 2.British Antarctic Survey, 3.Nagoya University, 4.Kanazawa University, 5.Tohoku University, 6. Japan Aerospace Exploration Agency)

2:05 PM - 2:25 PM

[PEM13-12] Understanding unsual ‘high-frequency’ bursty-patches using VLF-CHAMP

*Claudia Martinez-Calderon¹, Jyrki Manninen², Kazuo Shiokawa¹, David Pisa³ (1.ISEE, Nagoya University, 2.Sodankyla Geophysical Observatory, University of Oulu, 3.Institute of Atmospheric Physics, Czech Academy of Sciences, Prague, Czechia )

2:25 PM - 2:45 PM

[PEM13-13] Long Term Correlation between Lightning Activity and Trapped Radiation Belt Electrons from WWLLN and ERG comparisons

*Ryosuke Ui¹, Claudia Martinez-Calderon¹, Kazuo Shiokawa¹, Iku Shinohara², Yoshizumi Miyoshi¹, Satoshi Kasahara³, Kunihiro Keika³, Shoichiro Yokota⁴, Tomoaki Hori¹, Takefumi Mitani², Takeshi Takashima², Shiang-Yu Wang⁵, Yoichi Kazama⁵, Chae-Woo Jun¹, Jacob Bortnik⁶, Craig J Rodger⁷ (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3.Department of Earth and Planetary Science, School of Science, University of Tokyo, 4.Department of Earth and Space Science, Graduate School of Science, Osaka University, 5.Academia Sinica Institute of Astronomy and Astrophysics, 6.University of California Los Angeles, 7.Department of Physics, University of Otago)

2:45 PM - 3:05 PM

[PEM13-14] Average Profiles of Outer Radiation Belt Electron Flux and Related Plasma Parameters During Magnetic Storms: Insights from Arase Observations and Simulations

*Yoshizumi Miyoshi¹, Sandeep Kumar², Satoshi Kurita³, Shinji Saito⁴, Shoya Matsuda⁵, Yuto Katoh⁶, Ryuho Kataoka⁷, Rui Chen⁸, Shreedevi Porunakatu Radhakrishna¹, Iku Shinohara⁹, Kazushi Asamura⁹, Yoichi Kazama¹⁰, Shiang-Yu Wang¹⁰, Chae-Woo Jun¹, Tomoaki Hori¹, Satoshi Kasahara¹¹, Shoichiro Yokota¹², Kunihiro Keika¹¹, Takefumi Mitani⁹, Takeshi Takashima⁹, Nana Higashio⁹, Yoshiya Kasahara⁵, Fuminori Tsuchiya¹³, Atsushi Kumamoto¹³, Atsuki Shinbori¹, Naritoshi Kitamura¹, Ayako Matsuoka³, Kazuhiro Yamamoto¹, Mariko Teramoto¹³ (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.NASA/GSFC, 3.Kyoto University, 4.NICT, 5.Kanazawa University, 6.Tohoku University, 7.NIPR, 8.Auburn University, 9.JAXA, 10.ASIAA, 11.University of Tokyo, 12.Osaka University, 13.Kyushu Instituite for Technology)

3:05 PM - 3:15 PM

[PEM13_28PM1-5add] Discussion

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