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“...SI06
ZEKKOS ET AL.
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Figure 8. (a) Aerial and (b) land-based view of damage caused by rock fall at the Melamchi water supply tunnel near Timbu.
Figure 9. (a) Terrace slopes near Syabru Besi in the Trishuli area; (b) terrace slopes near Melamchi town in the Indrawati area; (c) 3-D reconstruction of a terrace slope using UAV-enabled SfM near Timbu in the Indrawati area.
DEBRIS FLOWS
During field deployment in October 2015, a major debris flow was observed next to Timbu village. Testimonials from locals confirmed that the debris flow took place during the 2015 monsoon season and that there were at least three separate flow events. One of them dammed the river for approximately three minutes before collapsing. Satellite-based orthophotos of the location of the debris before and after the flow are shown in Figures 10a and 10b, respectively. An orthophoto of the base of the debris flow, based on UAV imagery, is shown in Figure 10c, and a DEM is shown in Figure lOd. The total area of the...”
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