1. Laboratory for Atmospheric and Space PhysicsUniversity of Colorado Boulder Boulder Colorado USA
2. Department of Atmospheric and Oceanic SciencesUniversity of Colorado Boulder Boulder Colorado USA
3. Space Hazards Applications, LLC Golden Colorado USA
4. Cooperative Institute for Research in Environmental SciencesUniversity of Colorado Boulder Boulder Colorado USA
5. National Centers for Environmental InformationNational Oceanic and Atmospheric Administration Boulder Colorado USA
6. Department of PhysicsUniversity of Otago Dunedin New Zealand