An Attempt in Incorporating Local and Global Coronal Magnetic Field Modeling
Abstract
Coronal field extrapolation models are based on observed photospheric field data. The global models (eg. MHD and potential field source surface model (PFSS)) study the large scale stable structures of the corona, whereas local models (eg. non-linear force free field model (NLFFF)) look at smaller scale events that are more dynamic, with more drastic energy build up and release. While both have been successful at explaining a variety of solar activities, fewer studies are devoted to how these two types of models could be integrated, and how large scale and small scale magnetic activities interact with each other. In this study, we demonstrate our first attempt in this direction. We plan to use (1) series of updated synchronic maps and the PFSS model and (2) series of vector magnetograms with the NLFFF model to study the magnetic structure before and after major solar events. If available, results using the newest HMI data will also illustrate the prospect of future studies.
- Publication:
-
American Astronomical Society Meeting Abstracts #216
- Pub Date:
- May 2010
- Bibcode:
- 2010AAS...21640215S