1. Intro to Global Modeling and Prediction Session
Gary Zank & Bill Matthaeus
Heliosphere is a multiscale complex system!
Global
Mesoscale
Microscale (kinetic)

2. Large scale models Analytical vs numerical
Fluid (MHD)/ multifluid / Vlasov or hybrid
Finite difference/spectral /finite element
 Cannot resolve everything

3. Fluctuations/turbulence/unresolved/subgridscale models
WKB/waves
Turbulence transport
In specified fields
In dynamic fields
No feedback
With dynamical feedback (Reynolds stresses, mag “wave” pressure, turb electric field, pressure fluctuations, turb heating.)
Numerically motivated dissipation
Subgrid scale model
Kinetic model