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Fig. 1.

image

Full FOV of the scans from the SST and IRIS on the 29 April 2016, at 09:55 UT. Tick-marks around the figures are indicated in solar coordinates. Left panel: Ca II 8542 Å red wing image obtained from CRISP. Right panel: corresponding IRIS SJI at 2796 Å. The yellow dashed region shows the inverted FOV for reference. The plus sign, cross, asterisk, and square correspond to selected locations featuring an umbral flash, the cool penumbra model, the hot penumbra model, and a quiet surrounding pixel, respectively. The atmospheric models corresponding to these regions are provided in this paper.

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