Fig. 4


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Upper-left: half-disk image of radial Br field (white/black correspond to positive/negative polarity), scaled to ±200 G. Outlines show pixels with the minimum-energy disambiguation applied (confid_disambig keyword ≥ 60), which are included in the distributions shown in right columns. Lower-left: half-disk image of zonal Bφ, scaled to ±100 G. Region 1 (blue boxes) corresponds to area of negative polarity flux in decaying flux region. Region 2 (green boxes) corresponds to a similar area but of positive polarity flux. Boxes outlined by lighter/darker color are located West/East of the central meridian. Middle column: distribution of the zonal (Bφ) component of the magnetic field in the Region 1 for two (720 s and 5760 s) averaging. Right column: similar to middle column but for Region 2. Note: salmon (light pinkish–orange) contours that outline pixels with the minimum-energy disambiguation mask underlying black/white magnetic fields. To see both the magnetic field and the contours, the PDF figure needs to be magnified by 300% or more.

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