Figure 7
From: Unveiling the mystery of scale dependence of surface roughness of natural rock joints
Window length (\(\omega\)) selection of a separated unevenness. L and \(\omega\) are the sample length and the window length, respectively. \(S^i_u(\omega )\) and \(RMS^i_u(\omega )\) are the standard deviation and the root mean square of the height of unevenness in a window, respectively.
