Fig. 1


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Example of disagreement in orientation of Bθ and Bφ Magnetic field vector components of an active region in the southern hemisphere, which passed the central meridian on 19 November 2015. Upper panels show radial (Br), meridional (Bθ) and zonal (Bφ) field from SDO/HMI and lower panels from SOLIS/VSM. Meridional (middle) and zonal (right) components depict opposite orientation. Red/blue represent positive/negative polarities scaled between ±50 G (see color bars on the right side of figure).

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