In the published version of figure 7 errors were unfortunately introduced in the data sets shown. Figure 7 should be replaced by the figure shown below. The publisher apologises to the authors, editors and readers for this error.
Figure 7. The streamwise velocity variance for all smooth- and rough-wall data. A linear abscissa is used in (a) and a logarithmic abscissa is used in (b). In the inset of (b), the highest Reynolds number smooth-wall profile (
) is compared to the highest Reynolds number rough-wall profile (