Images of AR 8541, recorded by SUMER in C iv  1548 Å (panels a) to d)), and in Si ii  1533 Å (panel e)) and TRACE (panel f)) where the location of three regions showing individual asymmetric profiles are indicated with arrows. The first row shows the intensity image of the two SUMER rasters while the second row, the line width map. The third row shows the Si ii  1533 Å and the 1216 Å images recorded with SUMER and TRACE respectively. Notice that the regions appear to have a high line width (panels c) and d)) while only Region 1 appears as a high intensity area (panels a) and e)).