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DOC > NOAA > NESDIS > STAR > CRW
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CORAL REEF WATCH HOME


ABOUT US


PRODUCTS LIST


NEAR-REAL-TIME DATA



(5KM RESOLUTION)



Bleaching Alert Area (Alerts)

Degree Heating Week (DHW)

HotSpot

SST (CoralTemp)

SST Anomaly

SST Trend (7-day)

Regional Virtual Stations



COMPOSITE PRODUCTS (5KM RESOLUTION)


NEXT-GENERATION EXPERIMENTAL PRODUCTS


DATASETS


Data Files
Google Earth


PUBLICATIONS


Cite CRW Data & Products
5km Products Methodology


BLEACHING STRESS UPDATES & ANALYSES



RESEARCH ACTIVITIES


RETIRED HERITAGE PRODUCTS (50KM)


OUTREACH/EDUCATION

5km Products Tutorial



REPORT BLEACHING

Coral Reef Watch Satellite Monitoring and Modeled Outlooks



Hover over buttons below image to change product; then click on button or image
to navigate to product's page.

             

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Complete Products List

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Current ENSO Conditions and Forecasts

Report Field Data & Observations of Coral Bleaching/No Bleaching


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ANNOUNCEMENTS

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February 1, 2022:
New NOAA Coral Reef Watch (CRW) paper in F1000Research analyzes CRW's daily
global 5km satellite coral bleaching heat stress products to reveal that the
Great Barrier Reef started the 2021-2022 summer season with more accumulated
heat stress than ever before in the satellite record (1985-present).

January 25, 2022:
NEW RELEASE: NOAA CRW's Version 3.2 Thermal History product suite, spanning
1985-2021.



September 13, 2021:
Click here to read the latest NOAA/NESDIS Feature Story about Dr. Derek
Manzello, NOAA CRW's new Federal Coordinator, and learn more about how
satellites help monitor the coral reef environment and climate change impacts,
especially coral bleaching, all over the world.



May 12, 2021:
NOAA CRW is now featuring a new, enhanced image style for its daily global 5km
satellite coral bleachin heat stress monitoring products.



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Past Announcements

Coral reefs are one of Earth's most diverse ecosystems. They provide significant
ecological, economic, and societal benefits valued, globally, at about USD$9.8
trillion each year (de Groot et al. 2012, Costanza et al. 2014). Unfortunately,
reefs worldwide are threatened by an increasing array of impacts, primarily from
global climate change, unsustainable fishing practices, and land-based
pollution. First observed in the early 1980s, mass coral bleaching has become
one of the most visible and damaging marine ecological impacts of persistently
rising ocean temperatures. Bleaching is the process by which corals lose the
symbiotic algae (zooxanthellae) that give them their distinctive colors and main
energy sources. If a coral is severely bleached, disease and death become
likely. Severe coral bleaching has become more extensive, frequent, and intense.
This can be seen in the acceleration of heat stress events that cause mass
bleaching, and in new multi-decadal bleaching observation datasets. As
manifested by the devastating 2014-2017 global coral bleaching event (now
considered the longest, most widespread and most damaging coral bleaching event
on record), mass bleaching events around the globe are often lasting many
months; are becoming an annual event; and are impacting coral reefs that never
bleached before. It's clear that remote monitoring of coral reefs and the
development of actionable intelligence are critical for early detection,
on-the-ground response, communication, and future resilience planning to better
protect these ecosystems from further degradation and loss.

In response to these concerns and management needs, and to enhance coral reef
resilience in a warming world, NOAA established the Coral Reef Watch (CRW)
program in 2000. For more than 20 years, NOAA CRW has utilized remote sensing,
modeled and in situ data to observe, predict, and report to its users on the
coral reef environment worldwide. CRW provides the only global early-warning
system of coral reef ecosystem physical environmental changes. Its near
real-time satellite products and modeled Outlook predictions have successfully
and accurately monitored and predicted all major mass coral bleaching events
observed globally since 1997, while also providing other critical information to
users, especially during times of high oceanic heat stress. CRW's products help
resource managers, scientists, decision makers (including elected officials),
monitoring networks, and the public monitor climate impacts to reef ecosystems
worldwide; better understand links between environmental conditions and
ecosystem impacts; assess when reefs are vulnerable or resilient to climate
change and its impacts (especially bleaching); and prepare and prioritize
resources to implement timely, effective protective responses and adaptation
actions (including restoration efforts), thereby improving the management and
regulation of coral reefs in a warming world. Protective measures include
reducing local stressors in times of high heat stress (e.g., by closing major
scuba diving and fishing areas). CRW also informs multiple national and
international assessments of coral reef conditions.

NOAA CRW is uniquely qualified to provide essential environmental intelligence.
Its extensive partnership network with data providers, scientists, and coral
reef managers allows CRW to leverage key partner efforts in the U.S. and
internationally, to undertake research to develop the best possible products for
its users, and to better understand how stakeholders use its tools. CRW works
closely with its users throughout product conceptualization, development,
implementation, and operationalization, providing training in appropriate
product use, and garnering feedback to improve management tools. This places CRW
at the forefront of providing services to improve understanding of climate
change threats to coral reefs, and establishes sound practices for the use of
its products to enhance resilience-based coral reef management.

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CRW is part of the NOAA Coral Reef Conservation Program and the National
Environmental Satellite, Data, and Information Service. A brief history of CRW's
early years is featured in "NOAA Celebrates 200 Years of Science, Service, and
Stewardship".

CRW's satellite product suites are a key component of NOAA's monitoring efforts
for coral reef ecosystems, including the Coral Reef Conservation Program's
National Coral Reef Monitoring Program.

 

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