*松永 和成¹、関 華奈子¹、原 拓也¹、Brain David A.²、Lundin Rickard³、二穴 喜文⁴、Barabash Stas⁴ (1.名古屋大学　太陽地球環境研究所、2.Laboratory for Atmospheric and Space Physics (LASP), University of Colorado at Boulder、3.Space Physics Swedish Institute of Space Physics (IRF), Umea, Sweden、4.Space Physics Swedish Institute of Space Physics (IRF), Kiruna, Sweden)