[P-EM13] Dynamics of the Inner Magnetospheric System

[PEM13-03] Code coupling simulation of whistler mode chorus waves during storm time

*Yoshizumi Miyoshi¹, Vania Jordanova², Yuto Katoh³, Shinji Saito⁴, Satoshi Kurita⁵, Shoya Matsuda⁶, Shreedevi Porunakatu Radhakrishna¹, Satoko Nakamura¹, Chae-Woo Jun¹, Tomoaki Hori¹, Yoshiya Kasahara⁶, Atsushi Kumamoto³, Fuminori Tsuchiya³, Kazushi Asamura⁷, Iku Shinohara⁷, Yoichi Kazama⁸, Shiang Wang⁸, Satoshi Kasahara⁹, Shoichiro Yokota¹⁰, Kunihiro Keika⁹, Takefumi Mitani⁷, Takeshi Takashima⁷, Nana Higashio⁷, Ayako Matsuoka⁵ (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.Los Alamos National Laboratory, 3.Tohoku University, 4.NICT, 5.Kyoto University, 6.Kanazawa University, 7.JAXA, 8.ASIAA, 9.University of Tokyo, 10.Osaka University)

Keywords:Simulation, Chorus, Arase

Chorus waves, which cause the acceleration and loss of energetic electrons within the inner magnetosphere, play an essential role in cross-energy coupling. Investigating the temporal-spatial variations of chorus waves in the inner magnetosphere necessitates a global simulation that incorporates the non-linearity of chorus waves. In this study, we simulated the dynamics of energetic electron distributions and the plasmasphere using the RAM-SCBE simulation [Jordanova et al., 2014], which accurately models the evolution of the electron distribution function and density of thermal plasma under self-consistent magnetic fields. Using the simulated distribution functions, ambient density and magnetic fields provided by the RAM-SCBE, we conducted self-consistent electron hybrid simulations [Katoh et al., 2018] to investigate the generation of chorus elements, including chorus bursts, and to examine how the ambient plasma distribution function and fp/fc control the non-linear characteristics of whistler mode waves during storm time. We also compare with the Arase observed plasma waves and electron distributions with the simulation.