Top panels: Hurst exponent maps for the 193 Å signals in each of the three coronal-hole regions (black contour) obtained using R/S analysis. This method is only valid for cases with H ≤ 1; at other sites H takes values greater than 1, which are not well defined. Middle panels: histogram (left) and PDF (right) of H values for the interior pixels in the three coronal holes. Bottom panes: average intensity images with H ∼ 1 pixels in red. The grayscale has been inverted to better visualize these pixels.