1. Observations of December 2006 events
Yang Liu – Stanford University

2. From GOES

3. Observation from ACE

4. LASCO observation

5. CMEs and Dst (from Gopalswamy’s group)
v(halo)=1774 km/s
v(halo)=1042 km/s

6. December flare

7. Magnetic field on the Sun
AR10930

8. Magnetic distribution over the Sun’s surface
MDI
AR10930
SOLIS

9. AR10930 and large-scale magnetic field.

10. Evolution of AR10930 from Hinode

11. Vector field on Dec 12 (20:30UT) (from Hinode)
Observation Potential Field
highly sheared along the neutral line.

12. Vector field on Dec 13 (04:30UT) (from Hinode)
Observation Potential Field

13. NLFFF (only closed field lines plotted) (from McTiernan’s code available in SSW)
Dec 12 20:30 UT Dec 13 04:30 UT

14. Surface flow map derived from Longcope’s MEF code

15. Energy of AR10930 main spot fast-spin spot Vertical electric current
Magnetic field
Poynting from emerging flux
Poynting from surface flow