Sentinel-2 times series over corals

Sentinel-2 images for Adelaide Reef, Central Great Barrier Reef were analysed for bottom reflectance – or brightness. An increase in reflectance in early 2017 suggests a coral bleaching event, confirmed by two consecutive observations. The apparent absence of a bleaching in April and May 2016 is consistent with survey data from this area during the 2016 GBR bleaching event.