1. Department of PhysicsUniversity of Texas at Dallas Richardson Texas USA
2. Department of Atmospheric and Oceanic SciencesUniversity of California Los Angeles California USA
3. Institute of Space Physics and Applied TechnologyPeking University Beijing China
4. State Key Laboratory of Space Weather, Center for Space Science and Applied ResearchChinese Academy of Sciences Beijing China
5. Shenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen China