1. SPACE Research Centre RMIT University Melbourne Victoria Australia
2. Institute for Scientific Research Boston College Boston Massachusetts USA
3. Institute of Geophysics and Planetary Physics University of California Los Angeles California USA
4. Dipartimento di Scienze, Fisiche e Chimiche Università di L'Aquila L'Aquila Italy
5. NASA Goddard Space Flight Center Greenbelt Maryland USA
6. Department of Climate, Space Sciences, and Engineering University of Michigan Ann Arbor Michigan USA
7. School of Environment and Spatial Informatics China University of Mining and Technology Xuzhou China