1. Shandong Key Laboratory of Optical Astronomy and Solar‐Terrestrial Environment School of Space Science and Physics Institute of Space Sciences Shandong University Weihai China
2. State Key Laboratory of Space Weather Chinese Academy of Sciences Beijing China
3. Center for Space Physics Boston University Boston MA USA
4. Department of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA
5. School of Earth and Space Sciences Peking University Beijing China