Fig. 5
Average power of the unsigned circular polarization fluctuations in the 98 IN images for three spatial frequency bands on a Log scale. Circles represent the 2007 data set, triangles that of 2013. The dashed line indicates the average value in 2007, the dotted lines the average value in 2013. The upper panel shows the meso-granular scales, the middle panel the granular scales, and the lower panel the subgranular scales.
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