Non-Linear Force-Free Field (NLFFF) Extrapolation Tools
Non-Linear Force Free Field (NLFFF) extrapolation image
Non-Linear Force-Free Field Extrapolations (NLFFF; Wiegelmann): Shown are AIA images of AR11158, observed 2011-02- 14T20:34:00.34. Overplotted are the NLFFF extrapolated magnetic field lines extrapolated from an SDO/HMI vector-magnetogram.