Left: continuum intensity image normalised with spatially averaged continuum intensity. It is a small patch of a larger cube used in Paper I. The inner black box indicates the actual area used for analysis in this paper. The area outside of this box has been neglected because of the minor uncertainties in the intensity profiles that can result from the non-periodic boundary conditions. The five representative spatial points are marked. For positions 1, 3, and 5, the locations used for them in Paper I are indicated by white squares. Right: maps of the temperature (T), LOS velocity (v_LOS), and magnetic field strength (B), at log(τ) = − 2.0, −0.9, and 0.0, obtained from the inversion of LTE profiles. This is used as the “reference model”. In all the 2D maps in this paper, the origin is taken as (0, 0).