NOAA Coral Reef Watch Operational Daily Near-Real-Time Global 5-km Satellite Coral Bleaching Monitoring Products


Contains a suite of NOAA Coral Reef Watch (CRW) version 3.1 operational global satellite coral bleaching thermal stress monitoring products at 5-km resolution produced daily in near real-time, including sea surface temperature (SST), SST anomaly, HotSpot, Degree Heating Weeks (DHW), and a 7-day maximum Bleaching Alert Area (BAA). These data are based on CoralTemp Version 1.0, a daily global 5-km sea surface temperature dataset combined from: (1.) NOAA/NESDIS operational near-real-time daily global 5-km geostationary-polar-orbiting (geo-polar) blended night-only SST analysis, (2.) NOAA/NESDIS 2002-2016 reprocessed daily global 5-km geo-polar blended night-only SST analysis, and (3.) United Kingdom Met Office 1985-2002 daily global 5-km night-only SST reanalysis of Operational SST and Sea Ice Analysis (OSTIA). The SST anomaly is the difference of SST compared to daily SST climatology. The coral bleaching HotSpot is a special type of sea surface temperature (SST) anomaly and shows the difference of SST compared to a coral bleaching SST threshold climatology. DHW is the accumulation of Coral Bleaching HotSpots over a period of 12 consecutive weeks. The DHW value at any particular location at any particular time is the summation of the product of HotSpot values which are at least 1 deg C above the bleaching threshold SST and their durations in weeks over the most recent 12-week period. One DHW is equivalent to 1 week of SST at 1 deg C above the threshold or 0.5 week of SST at 2 deg C above the threshold, etc. The units for DHW are deg C-weeks, combining the intensity and duration of thermal stress into one single number. Based on research at Coral Reef Watch, when the thermal stress reaches 4 deg C-weeks, you can expect to see significant coral bleaching, especially in more sensitive species. When thermal stress is 8 deg C-weeks or higher, you would likely see widespread bleaching and mortality from the thermal stress.

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ERDDAP (DAP Client Access)

These data are available for access with an ERDDAP client

OPeNDAP (DAP Client Access)

These data are available for access with an OPeNDAP client

OGC:WCS (OGC Web Coverage Service)

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OGC:WMS (OGC Web Map Service)

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Distribution Formats
  • OPeNDAP
Distributor National Oceanic and Atmospheric Administration (NOAA)
Point of Contact NOAA Coral Reef Watch
National Oceanic and Atmospheric Administration (NOAA)
coralreefwatch@noaa.gov
Online Resource
Originator NOAA Coral Reef Watch
National Oceanic and Atmospheric Administration (NOAA)
coralreefwatch@noaa.gov
Online Resource
Coordinator, NOAA Coral Reef Watch C. Mark Eakin
Dataset Point of Contact Pacific Islands Ocean Observing System (PacIOOS)
info@pacioos.org
General Documentation
Associated Documentation NOAA Coral Reef Watch
Date(s) creation: 2017-05-19
issued: 2017-05-19
revision: 2018-11-14
creation: 2017-05-19
issued: 2017-05-19
revision: 2018-11-14
creation: 2017-05-19
issued: 2017-05-19
revision: 2018-11-14
creation: 2017-05-19
issued: 2017-05-19
revision: 2018-11-14
creation: 2017-05-19
issued: 2017-05-19
revision: 2018-11-14
Purpose PacIOOS provides timely, reliable, and accurate ocean information to support a safe, clean, productive ocean and resilient coastal zone in the U.S. Pacific Islands region.
Use Limitations
Time Period 1985-03-25T12:00:00Z to 2018-12-05T12:00:00Z
Spatial Bounding Box Coordinates N: 89.975° S: -89.975° E: 179.97501° W: -179.97501°
Theme keywords GCMD Science Keywords
  • Earth Science > Oceans > Coastal Processes > Coral Reefs
  • Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature

GCMD Platform Keywords
  • Earth Observation Satellites > GOES (Geostationary Operational Environmental Satellite) > GOES-13
  • Earth Observation Satellites > GOES (Geostationary Operational Environmental Satellite) > GOES-15
  • Earth Observation Satellites > Himawari > Himawari Meteorological Satellites
  • Earth Observation Satellites > Joint Polar Satellite System (JPSS) > SUOMI-NPP > Suomi National Polar-orbiting Partnership
  • Earth Observation Satellites > METEOSAT > METEOSAT-10
  • Earth Observation Satellites > METOP > METOP-B > Meteorological Operational Satellite - B

GCMD Instrument Keywords
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > AHI > Advanced Himawari Imager
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > AVHRR > Advanced Very High Resolution Radiometer
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > GOES-13 Imager > Geostationary Operational Environmental Satellite 13-Imager
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > GOES-15 Imager > Geostationary Operational Environmental Satellite 15-Imager
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > SEVIRI > Spinning Enhanced Visible and Infrared Imager
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > VIIRS > Visible-Infrared Imager-Radiometer Suite

CF Standard Name Table v39
  • sea_surface_temperature
  • sea_ice_area_fraction
  • latitude
  • longitude
  • time

Data Center keywords GCMD Data Center Keywords
  • PacIOOS > Pacific Islands Ocean Observing System

Place keywords GCMD Location Keywords
  • Geographic Region > Global Ocean

Project keywords GCMD Project Keywords
  • NOAA Coral Reef Watch

Lineage Statement Data obtained from NOAA Coral Reef Watch and re-distributed via THREDDS Data Server (TDS) at the Pacific Islands Ocean Observing System (PacIOOS) to provide temporal aggregation and distribution through NetCDF/OPeNDAP utilities like Godiva2, Live Access Server (LAS), and ERDDAP (05/2017), Upgraded data stream from v3.0 to v3.1, which also extends start date from 2013-06-03 back to 1985-03-25 (11/2018)