Affiliation: | 1.School of Space Science and Physics, Shandong University, Weihai, 264209, China ;2.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China ;3.Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska, 99775, USA ;4.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China ;5.Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, 48113, USA ;6.Institute of Space Physics and Applied Technology, Peking University, Beijing, 100871, China ; |