SDO/AIA 211 Å original images (top panels) and HMI LOS magnetograms (bottom panels, scaled from −750 G to +750 G) on March 7, 2012, at 02:32, 04:07, and 08:22 UT. The red circles mark observed brightenings in AIA. The gray contours present the contour of the largest instantaneous dimming mask used for the analysis of the dimming intensity evolution. They indicate flux emergence and interchange reconnection inside the dimming region.