Fig. 15
From: Earth-affecting solar transients: a review of progresses in solar cycle 24
Comparison of the reconstructed magnetic field with the observed features of the solar corona prior to the flare. a SDO view of sampled magnetic field lines of the CESE-MHD-NLFFF reconstruction. b and c SDO/AIA 171 Å and 304 Å images of the pre-flare corona. d The low-lying magnetic field lines in the core region. The field lines are color-coded by the value of height z. e Locations of dips in the magnetic field lines; the color indicates the value of height z. f GONG Hα image of the active region. The dashed curve denotes the location of a long filament (From Jiang et al. 2018)