Dynamics of the small-scale magnetic field at high latitudes on the Sun
Abstract
The evolution of the small-scale magnetic field is considered at high latitudes on the Sun using the Michelson Doppler Imager (MDI) data from the Solar and Heliospheric Observatory (SOHO) for cycle 23. The results reveal an influence of the subsurface velocity gradient and supergranulation on the emerging and dynamics of the small-scale magnetic field. The highlatitude large-scale magnetic field are clustered from these small-scale magnetic regions or 'elements' of dominant polarity and display the solar cycle behavior in spite that fact that small-scale magnetic regions have a tendency to be present 1-2 day, after that they are replaced by new ones.
- Publication:
-
37th COSPAR Scientific Assembly
- Pub Date:
- 2008
- Bibcode:
- 2008cosp...37..240B