1. Department of Atmospheric and Oceanic Sciences University of California Los Angeles CA Los Angeles USA
2. Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics University of California Los Angeles CA Los Angeles USA
3. Department of Electrical and Computer Engineering and Center for Space Physics Boston University MA Boston USA
4. Department of Space Science University of Alabama AL Huntsville USA
5. Department of Physics and Astronomy University of Calgary AB Calgary Canada