A monitoring method of coral bleaching and recovery by using hyperspectral sensor

Coral bleaching can lead to death of corals and has been increasing in worldwide in recent years. We proposed a method to classify extents of alive and dead corals by using space-bone hyperspectral sensor to monitor the events. The method was composed of two different approaches- Bottom Index and first derivative analysis of reflectance. In this study, examinations for improvement of classification accuracy and understanding a limitation of water depth which the classification can be applied for. After the result, feasibility of the method was evaluated with simulation data of HISUI, space-bone hyperspectral sensor. As a result, it was shown that the developed method was capable to be applied to HISUI data.