1. Severe Storms Research Center Sensors and Electromagnetic Applications Lab Georgia Tech Research Institute Smyrna GA USA
2. Geospace Physics Lab Aerospace Physics and Space Sciences Department Florida Institute of Technology Melbourne FL USA
3. Department of Physics and Space Science Center University of New Hampshire Durham NH USA
4. Earth System Science Center University of Alabama Huntsville Huntsville AL USA
5. Department of Physics and Langmuir Laboratory New Mexico Institute of Mining and Technology Socorro NM USA