Scatter plots of statistical parameters computed from the moments of the individual spectral profiles. The left-hand column of panels shows the data from raster 13:04−13:57 UT while the right-hand column shows the data from raster 13:58−14:53 UT. In each panel we show the moment value computed for the C iv  1550 Å line as a function of the same moment value computed for the C iv  1548 Å line. In panels a) and b) we show the Doppler shift, panels c) and d) the line width, and in panels e) and f) the skewness. In panels a), c), and e), the triangles indicate values from the profiles of Region 1 in Fig. 2 while in panels b), d), and f) triangles indicate values from profiles from Region 2 and squares from Region 3. Units are in SUMER spectral pixels.