1. Department of Geophysics; Tohoku University; Sendai Japan
2. Solar-Terrestrial Environment Laboratory; Nagoya University; Nagoya Japan
3. Institute of Advanced Research; Nagoya University; Nagoya Japan
4. Research Institute for Sustainable Humanosphere; Kyoto University; Uji Japan
5. Planetary Plasma and Atmospheric Research Center; Tohoku University; Sendai Japan
6. Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency; Sagamihara Japan
7. Earth and Planetary Science Division; Hokkaido University; Sapporo Japan
8. Department of Physics and Astronomy; University of Calgary; Calgary, Alberta Canada