(a)−(f): Sequence of HRI_EUV 174 Å images illustrating the continuous interchange reconnection process. (b) Three groups of loops (yellow arrows). (c): The dashed black arrow shows the slipping motion of these three loops. (d): Reconnection site between these three loops and the ambient open fields (pink arrows). Open magnetic field lines of the three loops after the reconnection in panel f (dashed yellow lines). Panels (g)−(i) show a curtain-like feature. (i1)−(i3): Time-distance diagrams along the direction of the dashed white lines in panel i. The dotted blue lines in panels (i1)−(i3) trace the inclined ridges that correspond to the plasma outflows along the curtain feature. The speeds were calculated by performing a linear fit on the height-time measurements. The “as” is an abbreviation for “average speed”. The dashed red lines in panels (i1)−(i3) mark the locations from which the light curves were extracted for wavelet analysis, with the results presented in Figs. 7b–7d.