Fig. 5.
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Variations in some parameters. (a): variations in the positive magnetic flux in the black box of Figs. 1c2 and 2a1 and in the SDO/AIA 304 Å mean intensities in the box of Fig. 2b2. The mean intensities are normalized by the duration. (b): time-distance diagram derived from a series of NVST Hα images along the dashed line in Fig. 2a2.
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