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Fig. 7


a) Application of the segmentation mask to the vertical velocity on the τ1-iso-surface for a single frame. b) Scatter plot of the mean vertical velocity of segmented granules vs. the granular diameter for the entire time series. The trend of the scatter is illustrated by two linear fits (solid black lines) and a third-order polynomial fit (dashed dark-gray line). Negative values correspond to upflowing plasma.

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