Coral Bleaching Detection Using PRISMA Hyperspectral Satellite Imagery in Calatagan, Batangas
Authors: Francesca Deighl Rivera, Ginell Elyza Buenavista, Ayin Tamondong, and Ariel Blanco
This study assessed the use of PRISMA hyperspectral data for detecting coral bleaching in Calatagan, Batangas, alongside sea surface temperature (SST) for validation. In-situ data and interviews with local experts provided additional insights. Sentinel-2 L2A data was used for comparison. The Spectral Angle Mapper (SAM) classified 27.12% of the coral area as bleached. T-tests showed two green bands were not separable, and box plots revealed lower reflectance values for bleached corals. The method achieved 60.6% accuracy for bleached corals and 63.4% overall. Hyperspectral imagery is effective for coral bleaching detection, with improvements suggested for sample diversity.
This paper is part of the ISPRS TC V Mid-term Symposium “Insight to Foresight via Geospatial Technologies” on 06-08 August 2024 in Manila, Philippines.
isprs-annals-X-5-2024-165-2024
Appropriate citation:
Rivera, F. D., Buenavista, G. E., Tamondong, A., and Blanco, A.: Coral Bleaching Detection Using PRISMA Hyperspectral Satellite Imagery in Calatagan, Batangas, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., X-5-2024, 165–172, https://doi.org/10.5194/isprs-annals-X-5-2024-165-2024, 2024.