1. Institute of Space WeatherNanjing University of Information Science and Technology Nanjing China
2. SOA Key Laboratory for Polar SciencePolar Research Institute of China Shanghai China
3. High Altitude ObservatoryNational Center for Atmospheric Research Boulder CO USA
4. Haystack ObservatoryMassachusetts Institute of Technology Westford MA USA
5. Shandong Provincial Key Laboratory of Optical Astronomy and Solar‐Terrestrial Environment, Institute of Space SciencesShandong University Weihai China