1. Space Science Division Naval Research Laboratory Washington DC USA
2. Department of Physics and Astronomy George Mason University Fairfax VA USA
3. Geophysical Institute University of Alaska Fairbanks Fairbanks AK USA
4. Department of Physics and Astronomy University College London London UK
5. Royal Netherlands Meteorological Institute—KNMI De Bilt The Netherlands
6. Centre for Research in Earth and Space Science York University Toronto Ontario Canada
7. High Altitude Observatory UCAR Boulder CO USA
8. Department of Electrical and Computer Engineering University of Illinois at Urbana‐Champaign Urbana IL USA
9. Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA
10. Korea Polar Research Institute Incheon South Korea