Data · dataset
NOAA Coral Reef Watch Operational Daily Near-Real-Time Global 5-km Satellite Coral Bleaching Monitoring Products, Lon0360
Listed in NOAA IOOS PacIOOS (Pacific Islands Ocean Observing System) at the University of Hawaii (UH)
Contains a suite of NOAA Coral Reef Watch (CRW) version 3.1 operational global satellite coral bleaching heat stress monitoring products at 5-km resolution produced daily in near real-time, including sea surface temperature (SST), SST anomaly, HotSpot, Degree Heating Week (DHW), and Bleaching Alert Area (BAA).
Description
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.
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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 heat stress into one single number.
Based on research at Coral Reef Watch, when the heat stress reaches 4 deg C-weeks, you can expect to see significant coral bleaching, especially in more sensitive species. When heat stress is 8 deg C-weeks or higher, you would likely see widespread bleaching and mortality from the heat stress.
Links
Where it is published
- ERDDAP dataset info pae-paha.pacioos.hawaii.edu/erddap/info/dhw_5km_lon360/index.html ↗
landing page · from pae paha pacioos hawaii edu
Documentation and papers
- Dataset documentation coralreefwatch.noaa.gov/satellite ↗
documentation · from pae paha pacioos hawaii edu
Catalogue records · 1
- ERDDAP griddap access form pae-paha.pacioos.hawaii.edu/erddap/griddap/dhw_5km_lon360.html ↗
metadata API · from pae paha pacioos hawaii edu
Topics
- From keywords
- Ocean & Atmospheric Science
Provenance · 1 source records, 6 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NOAA IOOS PacIOOS (Pacific Islands Ocean Observing System) at the University of Hawaii (UH) | dhw_5km_lon360 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · pae paha pacioos hawaii edu | connector:pae_paha_pacioos_hawaii_edu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · pae paha pacioos hawaii edu | connector:pae_paha_pacioos_hawaii_edu@1.0.0 | |
| description | source · pae paha pacioos hawaii edu | connector:pae_paha_pacioos_hawaii_edu@1.0.0 | /summary |
| spatial | source · pae paha pacioos hawaii edu | connector:pae_paha_pacioos_hawaii_edu@1.0.0 | |
| temporal | source · pae paha pacioos hawaii edu | connector:pae_paha_pacioos_hawaii_edu@1.0.0 | |
| title | source · pae paha pacioos hawaii edu | connector:pae_paha_pacioos_hawaii_edu@1.0.0 | /title |