dhw_5km
eng
UTF8
dataset
service
NOAA Coral Reef Watch (CRW)
coralreefwatch@noaa.gov
https://coralreefwatch.noaa.gov
http
web browser
information
pointOfContact
2024-03-28
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
3
column
7200
0.05
row
3600
0.05
temporal
14239
P1D
area
NOAA Coral Reef Watch Operational Daily Near-Real-Time Global 5-km Satellite Coral Bleaching Monitoring Products
2017-05-19
creation
2017-05-19
issued
2020-06-04
revision
3.1
org.pacioos
dhw_5km
NOAA Coral Reef Watch (CRW)
coralreefwatch@noaa.gov
https://coralreefwatch.noaa.gov
http
web browser
information
originator
Pacific Islands Ocean Observing System (PacIOOS)
info@pacioos.org
http://pacioos.org
http
web browser
information
publisher
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). 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 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.
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.
NOAA Coral Reef Watch (CRW)
NOAA Coral Reef Watch (CRW)
coralreefwatch@noaa.gov
https://coralreefwatch.noaa.gov
http
web browser
information
pointOfContact
http://pacioos.org/metadata/browse/dhw_5km.png
Sample image.
Earth Science > Oceans > Coastal Processes > Coral Reefs
Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
theme
GCMD Science 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-8
Earth Observation Satellites > METEOSAT > METEOSAT-11
Earth Observation Satellites > METOP > METOP-B > Meteorological Operational Satellite - B
theme
GCMD Platform 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
theme
GCMD Instrument Keywords
Geographic Region > Global Ocean
place
GCMD Location Keywords
NOAA Coral Reef Watch (CRW)
project
GCMD Project Keywords
PacIOOS > Pacific Islands Ocean Observing System
dataCenter
GCMD Data Center Keywords
sea_ice_area_fraction
sea_surface_temperature
latitude
longitude
time
theme
CF Standard Name Table v39
OSTIA Usage Statement (1985-2002): IMPORTANT usage statement. Unless otherwise agreed in writing, these data may be used for pure academic research only, with no commercial or other application and all usage must meet the Met Office Standard Terms and Conditions, which may be found here: http://www.metoffice.gov.uk/corporate/legal/tandc.html. The data may be used for a maximum period of 5 years. Reproduction of the data is permitted provided the following copyright statement is included: (C) Crown Copyright 2010, published by the Met Office. You must submit a completed reproduction license application form (here http://www.metoffice.gov.uk/corporate/legal/repro_licence.html) before using the data. This only needs to be completed once for each user. WARNING Some applications are unable to properly handle signed byte values. If values are encountered > 127, please subtract 256 from this reported value. GHRSST statement (2002-present): GHRSST protocol describes data use as free and open. Coral Reef Watch program statement: The data produced by Coral Reef Watch are available for use without restriction, but Coral Reef Watch relies on the ethics and integrity of the user to ensure that the source of the data and products is appropriately cited and credited. When using these data and products, credit and courtesy should be given to NOAA Coral Reef Watch. Please include the appropriate DOI associated with this dataset in the citation. For more information, visit the NOAA Coral Reef Watch website: https://coralreefwatch.noaa.gov. Recommendations for citing and providing credit are provided at https://coralreefwatch.noaa.gov/satellite/docs/recommendations_crw_citation.php. Users are referred to the footer section of Coral Reef Watch's website (https://coralreefwatch.noaa.gov/index.php) for disclaimers, policies, notices pertaining to the use of the data.
NOAA Coral Reef Watch (CRW)
largerWorkCitation
project
Unidata Common Data Model
Grid
largerWorkCitation
project
eng
biota
oceans
1
-180.0
180.0
-90.0
90.0
1985-04-01T12:00:00Z
2024-03-28T11:00:02.509Z
0.0
0.0
NOAA Coral Reef Watch Operational Daily Near-Real-Time Global 5-km Satellite Coral Bleaching Monitoring Products
2017-05-19
creation
2017-05-19
issued
2020-06-04
revision
NOAA Coral Reef Watch (CRW)
coralreefwatch@noaa.gov
https://coralreefwatch.noaa.gov
http
web browser
information
originator
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). 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 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.
THREDDS OPeNDAP
1
-180.0
180.0
-90.0
90.0
1985-04-01T12:00:00Z
2024-03-28T11:00:02.509Z
0.0
0.0
tight
OPeNDAP Client Access
https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/dhw_5km
OPeNDAP:OPeNDAP
OPeNDAP
THREDDS OPeNDAP
download
NOAA Coral Reef Watch Operational Daily Near-Real-Time Global 5-km Satellite Coral Bleaching Monitoring Products
2017-05-19
creation
2017-05-19
issued
2020-06-04
revision
NOAA Coral Reef Watch (CRW)
coralreefwatch@noaa.gov
https://coralreefwatch.noaa.gov
http
web browser
information
originator
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). 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 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.
Open Geospatial Consortium Web Coverage Service (WCS)
1
-180.0
180.0
-90.0
90.0
1985-04-01T12:00:00Z
2024-03-28T11:00:02.509Z
0.0
0.0
tight
GetCapabilities
https://pae-paha.pacioos.hawaii.edu/thredds/wcs/dhw_5km?service=WCS&version=1.0.0&request=GetCapabilities
OGC:WCS
OGC-WCS
Open Geospatial Consortium Web Coverage Service (WCS)
download
NOAA Coral Reef Watch Operational Daily Near-Real-Time Global 5-km Satellite Coral Bleaching Monitoring Products
2017-05-19
creation
2017-05-19
issued
2020-06-04
revision
NOAA Coral Reef Watch (CRW)
coralreefwatch@noaa.gov
https://coralreefwatch.noaa.gov
http
web browser
information
originator
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). 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 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.
Open Geospatial Consortium Web Map Service (WMS)
1
-180.0
180.0
-90.0
90.0
1985-04-01T12:00:00Z
2024-03-28T11:00:02.509Z
0.0
0.0
tight
GetCapabilities
https://pae-paha.pacioos.hawaii.edu/thredds/wms/dhw_5km?service=WMS&version=1.3.0&request=GetCapabilities
OGC:WMS
OGC-WMS
Open Geospatial Consortium Web Map Service (WMS)
download
NOAA Coral Reef Watch Operational Daily Near-Real-Time Global 5-km Satellite Coral Bleaching Monitoring Products
2017-05-19
creation
2017-05-19
issued
2020-06-04
revision
NOAA Coral Reef Watch (CRW)
coralreefwatch@noaa.gov
https://coralreefwatch.noaa.gov
http
web browser
information
originator
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). 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 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.
THREDDS NetCDF Subset Service
1
-180.0
180.0
-90.0
90.0
1985-04-01T12:00:00Z
2024-03-28T11:00:02.509Z
0.0
0.0
tight
NetCDFSubsetService
https://pae-paha.pacioos.hawaii.edu/thredds/ncss/dhw_5km/dataset.html
UNIDATA:NCSS
THREDDS_NetCDF_Subset
THREDDS NetCDF Subset Service
download
crs
short
. This is a container variable that describes the grid_mapping used by the data in this file. This variable does not contain any data; only information about the geographic coordinate system.
CRW_DHW
double
degree heating week
CRW_DHW_mask
byte
CRW_DHW pixel characteristics flag array. A 2D array, in the same size as the data array in the X and Y directions, classifying land, missing, and ice pixels that are all flagged by the same missing_value (specified by the variable attribute _FillValue) in the data array(s), along with water (data) pixels.
CRW_HOTSPOT
double
coral bleaching hotspot
CRW_HOTSPOT_mask
byte
CRW_HOTSPOT pixel characteristics flag array. A 2D array, in the same size as the data array in the X and Y directions, classifying land, missing, and ice pixels that are all flagged by the same missing_value (specified by the variable attribute _FillValue) in the data array(s), along with water (data) pixels.
CRW_SSTANOMALY
double
sea surface temperature anomaly
CRW_SSTANOMALY_mask
byte
CRW_SSTANOMALY pixel characteristics flag array. A 2D array, in the same size as the data array in the X and Y directions, classifying land, missing, and ice pixels that are all flagged by the same missing_value (specified by the variable attribute _FillValue) in the data array(s), along with water (data) pixels.
CRW_BAA
float
bleaching alert area. Bleaching Alert Area (BAA) values are coral bleaching heat stress levels: 0 - No Stress; 1 - Bleaching Watch; 2 - Bleaching Warning; 3 - Bleaching Alert Level 1; 4 - Bleaching Alert Level 2. Product description is provided at https://coralreefwatch.noaa.gov/product/5km/index.php.
CRW_BAA_mask
byte
CRW_BAA pixel characteristics flag array. A 2D array, in the same size as the data array in the X and Y directions, classifying land, missing, and ice pixels that are all flagged by the same missing_value (specified by the variable attribute _FillValue) in the data array(s), along with water (data) pixels.
CRW_BAA_7D_MAX
float
bleaching alert area 7-day maximum composite. Bleaching Alert Area (BAA) values are coral bleaching heat stress levels: 0 - No Stress; 1 - Bleaching Watch; 2 - Bleaching Warning; 3 - Bleaching Alert Level 1; 4 - Bleaching Alert Level 2. Product description is provided at https://coralreefwatch.noaa.gov/product/5km/index.php.
CRW_BAA_7D_MAX_mask
byte
CRW_BAA_7D_MAX pixel characteristics flag array. A 2D array, in the same size as the data array in the X and Y directions, classifying land, missing, and ice pixels that are all flagged by the same missing_value (specified by the variable attribute _FillValue) in the data array(s), along with water (data) pixels.
CRW_SEAICE
double
sea ice fraction (sea_ice_area_fraction). 0 is 0% ice, 1 is 100% ice
CRW_SST
double
sea surface temperature (sea_surface_temperature)
latitude
float
latitude (latitude). equirectangular projection and grid centers
longitude
float
longitude (longitude). equirectangular projection and grid centers
time
String
time coordinate (time)
Pacific Islands Ocean Observing System (PacIOOS)
info@pacioos.org
http://pacioos.org
http
web browser
information
publisher
OPeNDAP
DAP/2.0
https://pae-paha.pacioos.hawaii.edu/thredds/satellite.html?dataset=dhw_5km
UNIDATA:THREDDS
THREDDS Catalog
This URL provides a catalog page for this dataset within THREDDS Data Server (TDS).
download
https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/dhw_5km.html
http
File Information
This URL provides a standard OPeNDAP html interface for selecting data from this dataset. Change the extension to .info for a description of the dataset.
download
http://pacioos.org/voyager/index.html?b=-62.376931%2C42.495159%2C69.452305%2C-18.852497&s=1&t=m&o=sat:4:cunit:d46a0m0x1.5
http
PacIOOS Voyager (Google Maps API)
This URL provides a viewer and/or data access for this dataset.
download
https://pae-paha.pacioos.hawaii.edu/erddap/griddap/dhw_5km
ERDDAP:griddap
ERDDAP
This URL provides a viewer and/or data access for this dataset.
download
https://pae-paha.pacioos.hawaii.edu/erddap/griddap/dhw_5km_lon360
ERDDAP:griddap
ERDDAP
This URL provides a viewer and/or data access for this dataset.
download
https://coralreefwatch.noaa.gov/product/5km/methodology.php
http
Related URL
This URL provides additional information related to this dataset.
information
dataset
2017-05-19T00:00:00Z Data obtained from NOAA Coral Reef Watch and re-distributed via THREDDS Data Server (TDS) at PacIOOS to provide temporal aggregation and distribution through NetCDF/OPeNDAP utilities like ncWMS and ERDDAP.
2018-11-26T00:00:00Z Upgraded dataset from v3.0 to v3.1, which also extends start date from 2013-06-03 back to 1985-04-01.
2020-06-04T00:00:00Z Although still v3.1, CRW implemented some changes to metadata and ice masks for transition to NOAA/NESDIS operational products.
2024-01-12T22:35:00Z Due to ongoing difficulty serving the entire time series aggregation through TDS, we are now limiting access to the latest 3 years. For the full time series, see PacIOOS ERDDAP instead.
2024-03-20T21:18:00Z Full time series aggregation now restored in TDS; no longer limited to latest data.
This record was translated from NcML using UnidataDD2MI.xsl Version 2.3.