1. Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, Texas 78712, USA
2. Max Planck Institute for Plasma Physics, D-85748 Garching, Germany
3. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08536, USA
4. Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
5. Rutgers Discovery Informatics Institute, Rutgers University, New Brunswick, New Jersey 08854, USA
6. Space Science Center and Department of Physics, University of New Hampshire, Durham, New Hampshire 03824, USA
7. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA