1. Shandong Provincial Key Laboratory of Optical Astronomy and Solar‐Terrestrial Environment, School of Space Science and PhysicsShandong University Weihai China
2. State Key Laboratory of Space Weather, Center for Space Science and Applied ResearchChinese Academy of Sciences Beijing China
3. School of Earth and Space SciencesPeking University Beijing China
4. Atmospheric, Oceanic, and Space Sciences DepartmentUniversity of Michigan Ann Arbor Michigan USA
5. Earth and Space Sciences DepartmentUniversity of California Los Angeles California USA