A Severe Erosion of the Plasmasphere Arising from the September 2017 Storm

Yuki Obana1, Naomi Maruyama2, Atsuki Shinbori3, Kumiko K. Hashimoto4, Mariangel Fedrizzi5, Masahito Nose6, Yuichi Otsuka7, Nozomu Nishitani8, Tomoaki Hori9, Atsushi Kumamoto10, Fuminori Tsuchiya11, Shoya Matsuda12, Ayako Matsuoka12, Yoshiya Kasahara13, Akimasa Yoshikawa14, Yoshizumi Miyoshi9 and Iku Shinohara15, (1)Osaka Electro-Communication University, Neyagawa, Japan, (2)University of Colorado, Boulder, CO, United States, (3)Kyoto University, Kyoto, Japan, (4)Kibi International University, Okayama, Japan, (5)NOAA/SWPC-Univ. Colorado/CIRES, Boulder, CO, United States, (6)Nagoya Univeristy, Institute for Space-Earth Environmental Research, Nagoya, Japan, (7)Nagoya University, Nagoya, Japan, (8)Nagoya Univ, Nagoya, Japan, (9)Nagoya University, ISEE, Nagoya, Japan, (10)Tohoku University, Sendai, Japan, (11)PPARC, Tohoku University, Sendai, Japan, (12)ISAS/JAXA, Sagamihara, Japan, (13)Kanazawa University, Kanazawa, Japan, (14)Kyushu University, Faculty of Science, Fukuoka, Japan, (15)JAXA, ISAS, Sagamihara Kanagawa, Japan