IMPORTANT USER ALERT (2 July 2024): This past weekend, a storage server at NOAA's Center for Satellite Applications and Research, which delivers the NOAA Coral Reef Watch data, suffered a hardware failure. The issue is being addressed, and we hope to have the NOAA Coral Reef Watch data back up and running as soon as possible. (1) The most recent data will be made available first; historical data may take time to be restored. (2) If you need specific data that are not yet available, please contact us at coralreefwatch@noaa.gov. (3) If you use code to pull data, please revise your code to use “…/socd/…” in lieu of “…/sod/…” in all relevant web addresses for all future needs. We apologize for any inconvenience this may cause.



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reef scene with bleached coral

In this photo, taken in 2005 in the U.S. Virgin Islands, the large boulder coral is completely bleached. The large square object leaning against the coral head is a quadrat that scientists often use for in-water surveys, including during an episode of bleaching. This photo was taken by the NOAA Center for Coastal Monitoring and Assessment's Biogeography Branch.

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