Simulations of Magnetic-Flux Transport in Solar Active Regions
Abstract
We simulate the evolution of several observed solar active regions by solving a transport equation for magnetic flux at the photosphere. The rates of rotation, meridional flow, and diffusion of the flux are determined self-consistently in the calculations. Our findings are in good quantitative agreement with previous measures of the rotation rate and diffusion constant associated with photospheric magnetic fields. Although our meridional velocities are consistent in direction and magnitude with recently reported poleward flows, relatively large uncertainties in our velocity determinations make this result inconclusive.
- Publication:
-
Solar Physics
- Pub Date:
- December 1985
- DOI:
- 10.1007/BF00154036
- Bibcode:
- 1985SoPh..102...41D
- Keywords:
-
- Magnetic Flux;
- Photosphere;
- Solar Activity;
- Transport Properties;
- Angular Velocity;
- Diffusion Theory;
- Flow Velocity;
- Meridional Flow;
- Solar Physics;
- Magnetic Field;
- Active Region;
- Magnetic Flux;
- Transport Equation;
- Rotation Rate