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- W1993463807 abstract "It has been pointed out that globally hermatypic corals in coral reefs have been seriously damaged in recent years, and itis predicted that such damages will expand in area in the future. It is important to monitor corals globally, in detail, andover long-term periods, for preservation of the marine environment and biodiversity. The spot-check method, one of themajor coral monitoring methods, is operated by snorkelers or divers, and therefore, its operation is limited by the seastate,and its monitoring areas are often for specific observation points. On the other hand, the satellite remote sensing,another major coral monitoring methods, can cover composite coral reef areas, but the image resolution is a few meters,and it is not possible to monitor small size coral colonies and deep sea areas.The boat-based fluorescence imaging lidar system has been developed to complement these coral monitoring methods.This system obtains linear coral observation data along the boat track, and makes it possible to build a cooperative coralmonitoring network. Since most hermatypic corals have fluorescent proteins, living tissues can be monitored using theblue-to-green fluorescence from UV excitation. It is possible to observe the UV-excited fluorescence images from livecoral even in the daytime, by the UV excited fluorescence imaging lidar. Additionally, laser bathymetry is also possibleby time-of-flight measurement. We have succeeded in observing the pseudo-coral fluorescent images and depths down to30 m depth at the testing basin. Secondly, we have succeeded in observing the live coral fluorescent images and theirdepths by the lidar system using a glass-bottom-boat at Taketomi island, Okinawa, Japan. The system summary andobserved data are reported in this paper." @default.
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- W1993463807 date "2011-06-09" @default.
- W1993463807 modified "2023-09-23" @default.
- W1993463807 title "Coral monitoring with fluorescence imaging lidar" @default.
- W1993463807 doi "https://doi.org/10.1117/12.900978" @default.
- W1993463807 hasPublicationYear "2011" @default.
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