*Ingrid Brigitte Mann¹、Tinna Lif Gunnarsdottir¹、Devin R. Huyghebaert¹、Isabel M. Nerland¹、Wuhu Feng²、John M.C. Plane²、Yasunobu Ogawa³、Ingemar Haeggstroem⁴、Satonori Nozawa⁵、Norihito Saito⁵、Takuya D. Kawahara⁵、Neethal Thomas⁶ (1.Dept. of Physics and Technology, UiT, The Arctic University of Norway、2.University of Leeds, UK、3.Japan National Polar Research Institute、4.EISCAT Scientific Association, Kiruna, Sweden、5.ISEE, Nagoya University, Japan、6.SGO, University of Oulu, Finland)