*Qing-He Zhang¹, Michael Lockwood², John C. Foster³, Qiu-Gang Zong⁴, Malcolm W. Dunlop⁵, Shun-Rong Zhang³, Jøran I. Moen⁶, Bei-Chen Zhang⁷ (1.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai, China, 2.Department of Meteorology, University of Reading, Earley Gate, Post Office Box 243, RG6 6BB, UK, 3.MIT Haystack Observatory, Westford, MA 01886, USA, 4.School of Earth and Space Sciences, Peking University, Beijing, China, 5. Space Sciences Division, SSTD, Rutherford Appleton Laboratory, Didcot, UK, 6.Department of Physics, University of Oslo, Blindern, Oslo, Norway, 7.SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai, China)