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NOAA Coral Reef Watch (CRW) Products List

In addition to being accessible from the top navigation bar, NOAA Coral Reef Watch's (CRW) decision support products for coral reef ecosystem management can be accessed from the tables and links below.

Note: If you are looking for a particular CRW product but cannot locate it below, or if you have an inquiry about any of our products or services, please contact us at coralreefwatch@noaa.gov.



 

Table of Contents

  1. CoralTemp
  2. Daily Global 5km Satellite Coral Bleaching Heat Stress Product Suite
  3. Regional Virtual Stations and Bleaching Alert Emails
  4. Single-pixel Virtual Stations
  5. Four-Month Coral Bleaching Outlook
  6. Other Near Real-Time Products
  7. Historical Data Analyses -- Thermal History
  8. Model Simulations -- Laval Connectivity
  9. Research Products
  10. Archive of Retired Products -- Legacy Twice-Weekly 50km Bleaching Heat Stress Product Suite
  11. Other information


1. CoralTemp: (CRW's Daily Global 5km Satellite Sea Surface Temperature Dataset)

(version 3.1 [v3.1], 1985-present, released August 1, 2018)

CoralTemp (introduction)
Sea Surface Temperature (SST)		 Current
Con-
ditions		 Images
(Global,
Regional)		 Anim-
ations		 Google
Map		 Google
Earth		 NetCDF
Data		 Pixel
Images


2. Daily Global 5km Satellite Coral Bleaching Heat Stress Product Suite:

(v3.1, 1985-present, released August 1, 2018)

--- Including year-to-date, monthly, and annual composites; product climatologies.

  

Near Real-Time and Archived Products
(home page)
 Current
Con-
ditions		 Images
(Global,
Regional)		 Anim-
ations		 Google
Map		 Google
Earth		 NetCDF
Data		 Pixel
Images
Bleaching Alert Area (7-day max)
Bleaching alert status (maximum alert over 7 days)		 X X X X X X X
Bleaching Alert Area (single-day)
Bleaching alert status (single day alert)		 X X -- -- -- X X
Coral Bleaching HotSpot
Current heat stress (HotSpot)		 X X X X X X X
Degree Heating Week
Accumulated heat stress (DHW)		 X X X X X X X
SST (CoralTemp)
Sea Surface Temperature		 X X X X X X X
SST Anomaly
Sea Surface Temperature anomalies		 X X X X X X X
7-Day SST Trend
Sea Surface Temperature trend for the last 7 days		 X X X X X X X
 
Composites (home page)
Year-to-date, monthly, and annual composites of the v3.1 daily global 5km satellite products		 X X -- -- -- X X
 
Climatologies
Monthly and Maximum Monthly Mean (MMM) climatologies of the daily global 5km products		 -- -- -- -- -- X X


3. Regional Virtual Stations and Bleaching Alert Emails:

(v3.1, 1985-present, released July 31, 2019)

Regional Virtual Stations (5km)
(home page)
219 satellite-based regional coral reef sites (with 5 duplicated Stations in overlapping regions) 		Current
Stress
Levels		 Stations
List		 Google
Map		 Google
Earth
Gauges		 Maps
&
Images		 Time
Series
Graphs		 Time
Series
Data
Satellite Bleaching Alert Email System (home page)
Automated for 219 Regional Virtual Stations, 5 of which are duplicated in overlapping regions 		Current
Stress
Levels		 Stations
List		 Stations
on
Map		 Intro Sample
Email		 Sub-
scribe		 Unsub-
scribe		 Contact
Us


4. Single-pixel Virtual Stations:

(1985-present, multiple U.S. states and territories)

--- Key heat stress metrics for individual 5km x 5km satellite pixels that overlay priority coral reef sites for management and restoration.

  • U.S. Virgin Islands     (released August 29, 2022)
  • Florida     (released July 17, 2023)
  • Puerto Rico     (released September 14, 2023)
  • Samoas     (released March 6, 2024)
  • Guam     (released November 2024)
  • CNMI - Saipan, Tinian, and Aquijan     (released February 2025)
  • CNMI - Rota     (released February 2025)
  • Flower Garden Banks     (released March 2025)


    • 5. Four-Month Coral Bleaching Outlook: (updated weekly on Tuesdays)

    (v5, 2011-present, released March 27, 2018)

    --- Probabilistic, modeled subseasonal-to-seasonal bleaching heat stress outlook.

    Four-Month Coral Bleaching Outlook
    (home page)
    Four-month composites & individual weekly outlooks     		Latest
    Outlook    		 Images
    (Global,
    Regional)    		 Anim-
    ations    		 Google
    Map    		 NetCDF
    Data    		 Pixel
    Images    		 Archive


    6. Other Near Real-Time Products:

    Current
    Con-
    ditions    		 Image
    Archive    		 Anim-
    ations    		 Google
    Earth    		 NetCDF
    Data
    Archive    		 Time
    Series
    Data    		 E-mail
    Alerts
    Marine Heatwave Watch (v1.0.1) (home)
    -- 1985-present; released September 21, 2021
    Daily global and regional 5km maps identifying areas of
    prolonged, anomalously high SST    		 X X -- -- X -- --
    Coral Disease Outbreak Risk (v2) (home)
    -- 1985-present; released June 11, 2019
    Disease outbreak risk maps (Hawaii and Australia's Great Barrier Reef)    		 X X -- -- -- -- --
    Multi-Factor Coral Disease Risk (home)
    -- May 4, 2021-present; released May 4, 2021
    Coral disease nowcast and forecast maps and graphs predicting growth anomalies and white syndromes risk (US Pacific Islands and Great Barrier Reef)    		 X -- -- -- -- -- --
    Ocean Color (v1.0) (home)
    -- 2012-present; released May 2018
    Chlorophyll-a and Kd(490) monitoring at 750m
    from VIIRS satellite (Hawaii and Puerto Rico)     		X X -- -- X X --


    7. Historical Data Analyses:

    Thermal History (v3.5)
    (home page)
    1985-2023; released January 31, 2024; updated annually     		Images NetCDF
    Data
      Product Themes
    • Stress Frequency
    • Stress Onset
    • SST Variability
    • SST Trend
    • Climatology
    • Annual History
    		Click here for a
    complete list of
    product metrics.     		X X


    8. Model Simulations:

    Real-time
    Update    		 Scheduled
    Update    		 Images NetCDF
    Data
    Larval Connectivity (home page)
    Potential connectivity of larvae among reefs/atolls
    (Hawaii/Johnston Atoll and Florida)    		 No No X X


    9. Research Products:

    Real-time
    Update    		 Scheduled
    Update    		 Images Google
    Earth    		 NetCDF
    Data
    Wave-driven Flood-forecasting on Reef-lined Coasts Early warning system (WaveFoRCE) (home page)
    		-- -- X -- --
    Projections of Coral Bleaching and Ocean Acidification for Coral Reef Areas (home page)
    1° resolution; released October 21, 2013     		No No -- X --
    Downscaled climate model projections of coral bleaching conditions (home page)
    4-km resolution; released April 1, 2015    		 No No X X X


    10. Archive of Retired Products:

    Twice-weekly Global 50km Satellite Coral Bleaching Heat Stress Data and Products

    • For additional technical details about CRW's next-generation daily global 5km satellite products, see Skirving et al. 2020; Liu et al. 2017 and 2014; and Heron et al. 2016 and 2015.

    • Click here to access CRW's 5km methodology web page, detailing our v3.1 daily global 5km satellite products, climatologies, composites, animations, and data.

    • Click here to access CRW's 5km tutorial about coral reefs, coral bleaching, satellite remote sensing of the marine environment, and our daily global and regional 5km satellite products.


    *** See recommended citations for CRW products and methodologies. ***

    Other Coral Reef Watch Resources



    Last update: September 15, 2023.

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