Fig. 2: Ridge morphology.
a Rose plot of the circular orientation (in °) of the long axes of the ridge tops. Aspect ratio is denoted by the radial axis. Red arrow denotes mean orientation. b Map of bounding areas around ridges, with colour indicative of ridge relief. Lower W/L ratios imply a greater degree of streamlining. c Plot of aspect ratio of ridge tops. Aspect ratios of >0.27 for some of the ridge tops point to the occurrence of blockier, poorly streamlined or longer shapes. d Profile photograph (taken from the south) of a ridge. Location in figure b.
