(a) Pixel mask distinguishing between network (NW) and internetwork (IN) pixels (white lines separate NW and IN). The black dashed circle shows the inner region with a radius of 22″. The red circle shows the location of a group of compact loops (labelled C). The triangles show two locations (A and B) for which profiles are shown in Fig. 5. (b) Brightness temperature distributions in the inner regions of the FOV (radius r ≤ 22″) over the whole observing time period. All pixels (black) compared to internetwork (blue) and network pixels (red) for the full band maps.