Abstract
The Exploration of energization and Radiation in Geospace (ERG) project explores the acceleration, transport, and loss of relativistic electrons in the radiation belts and the dynamics for geospace storms. This project consists of three research teams for satellite observation, ground-based network observation, and integrated data analysis/simulation. This synergetic approach is essential for obtaining a comprehensive understanding of the relativistic electron generation/loss processes of the radiation belts as well as geospace storms through cross-energy/cross-regional couplings, in which different plasma/particle populations and regions are strongly coupled with each other. This paper gives an overview of the ERG project and presents the initial results from the ERG (Arase) satellite.
Highlights
The radiation belts consist of energetic charged particle populations that are trapped in the inner magnetosphere
The typical ring current and plasma sheet energies range from a few keV to about 100 keV, and these populations contribute to the ambient plasma pressure
Summary The energization and Radiation in Geospace (ERG) project was designed for understanding the energetic electron variations of the radiation belts and geospace storms
Summary
Yoshizumi Miyoshi1* , Iku Shinohara, Takeshi Takashima, Kazushi Asamura, Nana Higashio, Takefumi Mitani, Satoshi Kasahara, Shoichiro Yokota, Yoichi Kazama, Shiang‐Yu Wang, Sunny W. Ho6, Yoshiya Kasahara, Yasumasa Kasaba, Satoshi Yagitani, Ayako Matsuoka, Hirotsugu Kojima, Yuto Katoh, Kazuo Shiokawa and Kanako Seki
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