1. Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China
2. Innovation Academy for Earth Science CAS Beijing China
3. Beijing National Observatory of Space Environment Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China
4. College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing China
5. High Altitude Observatory, National Center for Atmospheric Research Boulder CO USA
6. Department of Physics and Astronomy Clemson University Clemson SC USA