1. Institute of Space Weather, College of Math and StatisticsNanjing University of Information Science and Technology Nanjing China
2. High Altitude ObservatoryNational Center for Atmospheric Research Boulder CO USA
3. Atmospheric and Planetary SciencesHampton University Hampton VA USA
4. Center for Atmospheric and Space SciencesUtah State University Logan UT USA
5. CAS Key Laboratory of Geospace Environment, School of Earth and Space SciencesUniversity of Science and Technology of China Hefei China
6. School of Electronic InformationWuhan University Wuhan China