10:15 AM - 10:30 AM
*Shin-ichiro OYAMA1, Junichi KURIHARA2, Takuo TSUDA3, Kazuo SHIOKAWA1, Yoshizumi MIYOSHI1, Brenton J. WATKINS4 (1.Solar-Terrestrial Environment Laboratory, Nagoya University, 2.Graduate School of Science, Hokkaido University, 3.National Institute of Polar Research, 4.Geophysical Institute, University of Alaska Fairbanks)