Plasmasphere is made up of low energy plasma from the ionosphere
Plasmasphere varies in size from 5 to 2.5 Re depending on phase of the geomagnetic storm
Questions to be answered:
- How is the plasmpause boundary established at a new location during a geomagnetic storm?
- What are the processes that refills or erodes the plasmasphere?
- How does the global shape of the plasmasphere evolve during erosion and reformation?