Indian Ocean Coral Bleaching
Indications are for a hot 2024 bleaching season in the Western Indian Ocean, with moderate to high bleaching expected
2023 was reported as the hottest year ever, with every month since mid-year breaking prior records by a large margin (fig), and a high likelihood that global temperatures will exceed the critical boundary of 1.5°C at some point during 2024. At the start of the southern summer period, both Indian Ocean Dipole and ENSO index are strongly positive and in phase, repeating conditions in in 1997/98.
Read more in the latest alert on the right.
Report Coral Bleaching
Submit basic observations on coral bleaching through this embedded window, or go to the google-form at this link. All data will be submitted to the global bleaching form supported by the NOAA Coral Reef Watch programme, and made accessible on a WIO regional database under development.
HISTORICAL BLEACHING – 2009 TO PRESENT
All past bleaching alerts, from 2009 to the current year, are in the window below. Click on the relevant year, or scroll left/right within each year for additional alerts. Alerts are published between January and May each year, with fewer alerts when bleaching risk is low.