1. Cooperative Institute of Research in Environmental Sciences and Department of Aerospace Engineering Sciences University of Colorado Boulder Boulder CO USA
2. Department of Electrical and Computer Engineering and Center for Space Physics Boston University Boston MA USA
3. Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg VA USA
4. Harbin Institute of Technology Shenzhen China
5. School of Chemistry University of Leeds Leeds UK
6. Department of Electrical and Computer Engineering University of Illinois Urbana IL USA
7. National Institute of Polar Research Tokyo Japan