1. Vector polarimetry with HMI
Full Stokes I,Q,U,V allows inference of Vector Magnetic Fields
More accurate velocities in the presence of magnetic fields through removal of Q, U & V to I crosstalk
Flows around sunspots, Sunspot seismology
More accurate flux determinations
Total flux, as opposed to longitudinal
True full disk magnetometry
Limb fields, polar fields
Steven Tomczyk HMI Science Team Meeting
May 1-2, 2003

2. HMI Science Goals HMI will have: Full Disk Coverage
High Temporal Cadence
Continuous Observations
Evolution of magnetic structure of sunspots and active regions
Magnetic shear accumulations and impulsive release
Evolution of helicity in active regions
Steven Tomczyk HMI Science Team Meeting
May 1-2, 2003

3. Test global dynamo models
Role of the magnetic field in coronal heating and solar wind
Field extrapolation from the photosphere to the corona
Connection between magnetic fields and solar irradiance
Steven Tomczyk HMI Science Team Meeting
May 1-2, 2003