Fig. 2

a) The factor by which magnetic flux in KP/512 magnetograms should be multiplied in order to obtain the same magnetic flux as in KP/SPM magnetograms, as a function of magnetic flux (see text). b) The best global conversion factor, f512, by which complete KP/512 magnetograms should be multiplied as a function of Bsat,512, the SATIRE-S free parameter. Dashed lines in both panels represent the standard error as shown in Fig. 1a.
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