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Sea Surface Temperature (SST) Maximum Degree Heating Week, 2000-2013 - Hawaii

Metadata Updated: November 11, 2023

Sea surface temperature (SST) plays an important role in a number of ecological processes and can vary over a wide range of time scales, from daily to decadal changes. SST influences primary production, species migration patterns, and coral health. If temperatures are anomalously warm for extended periods of time, drastic changes in the surrounding ecosystem can result, including harmful effects such as coral bleaching. Degree Heating Weeks (DHW) is a metric of this thermal stress on corals. This layer represents the maximum weekly DHW of SST (Celsius weeks) from 2000-2013. NOAA Coral Reef Watch (CRW) methodology was used to calculate the DHW time series. Please see the CRW website for details on how the DHW product is calculated (

Three SST datasets were combined to provide continuous coverage from 1985-2013. The concatenation applies bias adjustment derived from linear regression to the overlap periods of datasets, with the final representation matching the 0.05-degree (~5-km) near real-time SST product. First, a weekly composite, gap-filled SST dataset from the NOAA Pathfinder v5.2 SST 1/24-degree (~4-km), daily dataset (a NOAA Climate Data Record) for each location was produced following Heron et al. (2010) for January 1985 to December 2012. Next, weekly composite SST data from the NOAA/NESDIS/STAR Blended SST 0.1-degree (~11-km), daily dataset was produced for February 2009 to October 2013. Finally, a weekly composite SST dataset from the NOAA/NESDIS/STAR Blended SST 0.05-degree (~5-km), daily dataset was produced for March 2012 to December 2013.

This SST weekly DHW data layer represents the maximum DHW experienced at any point for a given satellite pixel over the 2000-2013 time frame.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Date March 30, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date November 11, 2023
Reference Date(s) March 14, 2017 (creation), March 14, 2017 (issued), March 14, 2017 (revision)
Frequency Of Update

Metadata Source

Harvested from ioos

Graphic Preview

Sample image.

Additional Metadata

Resource Type Dataset
Metadata Date March 30, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date November 11, 2023
Reference Date(s) March 14, 2017 (creation), March 14, 2017 (issued), March 14, 2017 (revision)
Responsible Party National Center for Ecological Analysis and Synthesis (NCEAS) (Point of Contact)
Contact Email
Guid hi_otp_all_sst_dhw_max
Access Constraints
Bbox East Long -154.53930597914805
Bbox North Lat 22.4237406534364
Bbox South Lat 18.75414421694241
Bbox West Long -160.44646121838227
Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
Frequency Of Update
Graphic Preview Description Sample image.
Graphic Preview File
Harvest Object Id 06c29a57-31a3-4a16-b689-2b074367cc75
Harvest Source Id 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb
Harvest Source Title ioos
Lineage 2017-03-14T00:00:00Z OGC web services (WMS and WFS) enabled by PacIOOS via GeoServer. Original data from source provider may have been reformatted, reprojected, or adjusted in other ways to optimize these capabilities.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-160.44646121838227, 18.75414421694241], [-154.53930597914805, 18.75414421694241], [-154.53930597914805, 22.4237406534364], [-160.44646121838227, 22.4237406534364], [-160.44646121838227, 18.75414421694241]]]}
Spatial Data Service Type Open Geospatial Consortium Web Coverage Service (WCS)
Spatial Reference System
Spatial Harvester True

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