Fig. 9
a High-resolution 3D surface of the surveyed rock wall in Sal Leo rock cliff (red dashed square corresponds to the area affected by block detachments). b Comparison between March 7th 2014-April 9th 2014 TLS scans: white oval showing the first monitored rock block detachment; orange-yellow areas enhance rock wall sector characterized by displacements. c Comparison between March 7th 2014-December 18th 2014 scans, enhancing the occurred detached rock block sectors (in blue); yellow ovals enhance the minor block detachments. d Correspondent sectors in optical image (black ovals enhance major detachments; dashed line delimits the rock wall displaced sector); (after Frodella et al., 2016)