Quantities for the WFA analysis, taken from the values of the numerical CBP model. From top to bottom, the four rows show the corresponding quantities when considering the Fe10747, Fe5303, Si14301, and Si39343 lines. Left column: Spatial average along the LoS direction of B_LOS, weighted by the emission of the considered line as computed by CHIANTI. Central column: Departure from unity of the ratio between the B_LOS inferred from the WFA and the average B_LOS of the atmospheric model, weighted by the emission. Right column: Measure of the cancellation of B_LOS along the LoS given as the ratio of the integral quantities |​​ < ​B_x, ϵ_I​ > ​​| over < ​|B_x|,ϵ_I​> (see text).