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.
Daily Global 5km Satellite Coral Bleaching Heat Stress HotSpot
Click on map above to zoom to small 60 x 40-degree tiles; use drop-down menu below to view larger 60 x 40-degree tiles.
Right-click outside clickable map area to save the image.
60 x 40-degree tiles (by east/west hemispheres and low/high latitudes, updated daily)
The NOAA Coral Reef Watch (CRW) daily global 5km Coral Bleaching HotSpot
product presented here measures the occurrence and magnitude of instantaneous heat stress,
potentially resulting in coral bleaching. The scale ranges from 0 to 5 °C. HotSpot values
of 1 °C or more indicate heat stress leading to coral bleaching and are highlighted in
yellow to dark red/brown colors.
This product is updated each afternoon at about 13:30 U.S. Eastern Time.
