1. The Plasmaspheric Boundary Layer: Some Present-Day Modeling Issues Jan J. Sojka Center for Atmospheric and Space Sciences Utah State University Logan, Utah CEDAR Workshop on Physics at the Plasmaspheric Boundary Layer Wednesday, 18 June 2008 Zermatt, Midway, Utah

2. Figure Acknowledgements Book – Inner Magnetosphere Interactions (ed. James Burch, Michael Schulz, and Harlan Spence), Geophysical Monograph, 159, American Geophysical Union, Washington, DC, 2005. Book – Ionospheres, R. W. Schunk and A. F. Nagy, Cambridge University Press, U.K., 2000. A standard Introduction to Physics with Calculus text book Photograph of an Einstein Bagel.

3. Plasmasheric Boundary Layer: Plasmapause

4. A Dipole Magnetic Field: NOT!

5. The Standard Plasmasphere View

7. Important Physics happens at the Boundary Layer, John Foster will tell us about this dynamic redistribution of plasma…. but…..

8. At the boundary layer and in the plasmasphere the cold plasma Interacts with hot plasma: radiation belts and the ring current. These hot particles are guided by a “changing” magnetic fields. The cold boundary layer also has a “hot outer zone” that has a rich ion composition. Did I mention E&M waves…..

9. Humans can modify the plasmasphere…………..