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Fig. 2.

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Detected exploding granules during 24 h and their impact on corks. Left column: Intensity maps constructing by summing up all exploding granules detected during 24 h: bright and dark zones indicate high and low rates of exploding granules, respectively. Right column: Location of corks diffused by these detected exploding granules using our kinematic model, superimposed over maps of the longitudinal magnetic field observed by SDO/HMI at the end of the 24-h run. The exploding granule detection was performed with a criterion for the vertical velocity (top row) and without (bottom row). The field of view is located at the disc centre of size 62.5″ × 62.5″.

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