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Dataset Overview | National Centers for Environmental Information (NCEI)

NOAA Coral Reef Watch Operational Near-real-time Twice-weekly Global 50 km Satellite Coral Bleaching Thermal Stress Monitoring Product Suite from 2007-12-31 to 2008-12-31 (NCEI Accession 0075823)

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NOAA's polar-orbiting satellites measure SST around the globe in near-real-time, and Coral Reef Watch produces a suite of products derived from this set of satellite SST and uses them to pinpoint areas around the world where corals are at risk for bleaching. This is a suite of operational products produced at 0.5 degree (approximately 50 km) spatial resolution twice-weekly. The products include nighttime sea surface temperature, nighttime sea surface temperature anomaly, coral bleaching HotSpots, and Degree Heating Weeks for the global oceans.
  • Cite as: Liu, Gang; NOAA Center for Satellite Applications and Research (2011). NOAA Coral Reef Watch Operational Near-real-time Twice-weekly Global 50 km Satellite Coral Bleaching Thermal Stress Monitoring Product Suite from 2007-12-31 to 2008-12-31 (NCEI Accession 0075823). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0075823. Accessed [date].
  • Please refer to Credit tab for full citation information.
gov.noaa.nodc:0075823
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Distribution Formats
  • netCDF (Version: netCDF-4)
  • BMP
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2007-12-31 to 2008-12-31
Spatial Bounding Box Coordinates
West: -180
East: 180
South: -80.25
North: 85.25
Spatial Coverage Map
General Documentation
Associated Resources
  • NOAA Coral Reef Watch Operational Near-real-time Twice-weekly Global 50 km Satellite Coral Bleaching Thermal Stress Monitoring Product Suite 2000-11-28 to 2020-05-28
    • NCEI Collection
      Navigate directly to the URL for data access and direct download.
  • Parent ID (indicates this dataset is related to other data):
    • gov.noaa.nodc:CRW-TS50km
Publication Dates
  • publication: 2011-09-07
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Coral Reef Watch's satellite coral bleaching monitoring and assessment products for archive include SST, SST anomalies, coral bleaching HotSpots, and coral bleaching Degree Heating Weeks. These products are produced by Coral Reef Watch in near-real-time using NOAA/NESDIS operational composite nighttime POES AVHRR SSTs at 0.5-degree spatial resolution. NOAA POES AVHRR Global Area Coverage (GAC) SST nighttime observations are used to generate Coral Reef Watch's global twice-weekly SST analysis product. This SST analysis is then used with Coral Reef Watch operational SST climatologies and coral bleaching SST threshold climatology to derive SST anomalies, HotSpots, and Degree Heating Weeks. The products are updated twice-weekly on every Monday morning (using AVHRR SST observations from the previous Monday through Wednesday), U.S. Eastern Time.

Coral Reef Watch relies on the ethics and integrity of the user to ensure that the source of these data and products is appropriately cited and credited. When using these data, credit and courtesy should be given to "NOAA Coral Reef Watch."

Data layers included in the data files:
Data Layer Definition Type Dimensions (RxC)
CRW_SST Twice-weekly global 50km satellite int16 331x720
nighttime sea surface temperature
CRW_SSTANOMALY Twice-weekly global 50km satellite int16 331x720
nighttime sea surface temperature
anomaly
CRW_HOTSPOT Twice-weekly global 50km satellite int16 331x720
coral bleaching HotSpot
CRW_DHW Twice-weekly global 50km satellite int16 331x720
coral bleaching Degree Heating Weeks
surface_flag Pixel characteristics flag array uint8 331x720

Individual DHW, HotSpot, SST, and SST Anomaly HDF files contain two data layers including the corresponding data layer named in the table above (CRW_DHW, CRW_HOTSPOT, CRW_SST, or CRW_SSTANOMALY) and a surface_flag layer. Each of these files also contains an 8-bit raster image of the corresponding geophysical data layer contained in the file. The dimension of each image is 720 columns by 411 rows. Each image displays a data layer in its pre-defined color scale and the color legend is shown on each image. Corresponding color palette is attached on each image and extractable from the HDF file. An all-in-one file contains all the data layers listed in the table and their raster images with color palettes.

All these data files are in HDF format, containing internally all the necessary information to understand and to properly use the data.

Goreau, T.J. and R. Hayes, 1994. Coral Bleaching and Ocean "Hot Spots." Ambio, 23:176-180.
Liu G., A.E. Strong, W.Skirving, and L.F. Arzayus, 2005. Overview of NOAA coral reef watch program's near-real time satellite global coral bleaching monitoring activities. Proc 10th Int Coral Reef Symp., Okinawa, Japan, 2004. 1:1783-1793.
Liu, G., A.E. Strong and W. Skirving (2003). Remote Sensing of Sea Surface Temperatures during 2002 Barrier Reef Coral Bleaching. EOS 84(15): 137.
Liu G., J.E. Meyer, I.C. Guch, and M.A. Toscano, 2001. NOAA's satellite coral reef bleaching early warning products aimed at local reef sites around the globe. Reef Encounter, 30: 10-13.
Skirving, W.J., A.E. Strong, G. Liu, C. Liu, F. Arzayus, J. Sapper, and E. Bayler. Extreme events and perturbations of coastal ecosystems: Sea surface temperature change and coral bleaching. Chapter 2 in Remote Sensing of Aquatic Coastal Ecosystem Processes, L.L. Richardson and E.F. LeDrew (Co-Eds), Kluwer publishers. January, 2006.
Strong, A.E., F. Arzayus, W. Skirving, and S.F. Heron. Identifying coral bleaching remotely via Coral Reef Watch - improved integration and implications for climate change. Chapter 9 in Coral Reefs and Climate Change: Science and Management, J.T. Phinney, O. Hoegh-Guldberg, J. Kleypas, W. Skirving, and A.E. Strong (Co-Eds), American Geophysical Union, 2006.

A complete list of references is available at
http://coralreefwatch.noaa.gov/satellite/methodology/methodology.html#references
http://coralreefwatch.noaa.gov/satellite/publications.html
Purpose The NOAA Coral Reef Watch program seeks to fully utilize space-based sea surface temperature (SST) observations combined with in-situ data to continually monitor for early indications of thermally-induced coral reef bleaching worldwide. A suite of monitoring and predicting products, including this satellite SST Anomaly product, has been developed by CRW as a decision support system to provide critical and timely coral reef environment information to the U.S. and international coral reef communities.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Liu, Gang; NOAA Center for Satellite Applications and Research (2011). NOAA Coral Reef Watch Operational Near-real-time Twice-weekly Global 50 km Satellite Coral Bleaching Thermal Stress Monitoring Product Suite from 2007-12-31 to 2008-12-31 (NCEI Accession 0075823). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0075823. Accessed [date].
  • Coral Reef Watch relies on the ethics and integrity of the user to ensure that the source of these data and products is appropriately cited and credited. When using these data, credit and courtesy should be given to "NOAA Coral Reef Watch."
Cited Authors
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
Project keywords NODC PROJECT NAMES THESAURUS
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Liu, Gang; NOAA Center for Satellite Applications and Research (2011). NOAA Coral Reef Watch Operational Near-real-time Twice-weekly Global 50 km Satellite Coral Bleaching Thermal Stress Monitoring Product Suite from 2007-12-31 to 2008-12-31 (NCEI Accession 0075823). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0075823. Accessed [date].
  • Coral Reef Watch relies on the ethics and integrity of the user to ensure that the source of these data and products is appropriately cited and credited. When using these data, credit and courtesy should be given to "NOAA Coral Reef Watch."
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2011-09-07T14:33:28Z - NCEI Accession 0075823 v1.1 was published.
Output Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • AVHRR-2
  • AVHRR-3
Platform
  • NOAA-14
  • NOAA-16
  • NOAA-18
  • NOAA-19
Last Modified: 2024-02-21T13:40:56Z
For questions about the information on this page, please email: ncei.info@noaa.gov