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Investor Presentaiton

There-dimensional change detection in coastal cliffs using UAV and TLS study site: rapidly eroded small coastal island 2020.05.08 fri Yuichi S. Hayakawa* & Hiroyuki Obanawa *Environmental Earth Science, Hokkaido University a rare opportunity in Japan: natural rapid processes of coastal erosion out of the coastal protection oceanic waves directly attacks the bedrock cliff rapidly shrinking for decades 35 19 11.4 N Tokyo 14C 04 36.6, E The isumi River → 1974 (Suzume-jima) Shooting date: 31/12/1974 Flight altitude: 1416 m Original scale: 1/8,000 Suzume-Jima Island 1967 Cape Taito-Saki 1 km coastal protection 2014 35 m 20 m 32 m a.s.l. 33 m 35 m Obanawa et al. 2015 1972 1977 1982 1987 1992 1997 2002 2007 2012 constant erosion shore platform formation reported erosion rates around this site: 1 m/y (1960 1966 by 1:1,000 topo maps; Horikawa and Sunamura 1967)
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