2:15 PM - 2:30 PM
*Heikki Vanhamaki1, Shin-ichiro Oyama1,2, Mark Conde3, Anita Aikio1, Lei Cai4, Ilkka Virtanen1 (1.University of Oulu, Finland, 2.Institute for Space-Earth Environmental Research, Nagoya University, Japan, 3.Geophysical Institute, University of Alaska Fairbanks, US, 4.KTH Royal Institute of Technology, Sweden)