Personnel:

Jay R. Johnson

Eun-Hwa Kim

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Space Physics MHD Research

Key Issues: Entry and Transport

Plasma Sheet Dynamics

• How does mass, momentum and energy enter the magentosphere?– Reconnection

– Kelvin-Helmholtz Instability

– Kinetic Alfven Waves/Mode Conversion

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Plasma Sheet Dynamics

• Entropy Definition global/total: S=p1/dv; specific/local: s = p/

• Entropy Crisis– Steady Convection– Substorm Transition

• How are ions heated?• What convects cold plasma to the center of

the plasma sheet?

Mapping Technique

Role of Heavy Ions

• At Magnetopause– Reconnection (Threshold/Growth)– KH inertial effects (Inertial Scale Effects)– Mode Conversion (Strong Absorption)

• At Planets– Mercury– Jupiter

IIR AR