Institute of Geophysics and Planetary Physics and Department of Earth and Space Sciences, University of California Los Angeles, Los Angeles, CA 90095-1567, USA
National Institute of Information and Communication Technology, 4-2-1 Nukui- Kitamachi Koganei, Tokyo, 184-8795, Japan
Solar Terrestrial Environment Laboratory, Nagoya University Furo-cho Chikusa-ku, Nagoya, 464-8601, Japan
Department of Biophysics, University of California, Los Angeles, CA 90095, USA