Cropped field of view of AR12533 on April 29, 2016 (dataset A), showing sampling positions for all PMJs studied on this date. Observations of (top) the SST Ca II 8542 Å line at an offset of −350 mÅ, (bottom left) the IRIS SJI Mg II k line image, and (bottom right) the IRIS SJI Si IV line image are shown. Symbols mark a subset of all the sampling positions for analysis of spectral line profiles. Red cross: Ca II 8542 Å; green diamond: the Mg II k, h, and triplet lines; and blue triangle: Si IV 1394 Å and 1403 Å lines. The raster-slit positions (of one-pixel width) of the IRIS slit-spectrograph are indicated and enclosed in each panel with purple-dashed lines. The mean spectral profiles for the penumbra in the IRIS lines were calculated in the yellow dash marked raster-slit areas. Penumbra mean spectral profiles in the CRISP lines were computed within the red dashed box.