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