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 data       graph  M    public NOAA Global Coral Bleaching Monitoring Products    ?   F   I   M   background (external link) RSS Subscribe
NOAA Coral Reef  ... ?
NOAA_DHW

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL acknowledgment String NOAA Coral Reef Watch
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL cols int 720
attribute NC_GLOBAL comment String These are Coral Reef Watch near-real-time satellite coral bleaching monitoring products produced twice a week. CoastWatch Utilities v3.2.1 or higher (http://coastwatch.noaa.gov/cw_software.html) can be used for viewing, analyzing, and plotting the data.
attribute NC_GLOBAL comment_metadata String Compliant to HDF 4.1r5 and CoastWatch HDF Specification 3.4 and adopts some attributes from NetCDF/CF Conversions 1.0. See documentation at http://coralreefwatch.noaa.gov/satellite/hdf/
attribute NC_GLOBAL composite String true
attribute NC_GLOBAL contact String NOAA Coral Reef Watch at coralreefwatch@noaa.gov
attribute NC_GLOBAL contributor_name String C. Mark Eakin
attribute NC_GLOBAL contributor_role String Coordinator, NOAA Coral Reef Watch
attribute NC_GLOBAL Conventions String Unidata Dataset Discovery v1.0, CF-1.4
attribute NC_GLOBAL creator_email String coralreefwatch@noaa.gov
attribute NC_GLOBAL creator_name String NOAA Coral Reef Watch
attribute NC_GLOBAL creator_url String http://coralreefwatch.noaa.gov/satellite (external link)
attribute NC_GLOBAL crwhdf_version String 1.0
attribute NC_GLOBAL cwhdf_version String 3.4
attribute NC_GLOBAL date_created String 2010-12-13
attribute NC_GLOBAL date_issued String 2010-12-13
attribute NC_GLOBAL date_modified String 2011-04-19
attribute NC_GLOBAL Easternmost_Easting double 179.5
attribute NC_GLOBAL easternmost_longitude double 179.75
attribute NC_GLOBAL et_affine double 0.0, -0.5, 0.5, 0.0, -180.0, 85.0
attribute NC_GLOBAL gctp_datum int 12
attribute NC_GLOBAL gctp_parm double 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0
attribute NC_GLOBAL gctp_sys int 0
attribute NC_GLOBAL gctp_zone int 0
attribute NC_GLOBAL geospatial_lat_max double 85.0
attribute NC_GLOBAL geospatial_lat_min double -80.0
attribute NC_GLOBAL geospatial_lat_resolution double 0.5
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.5
attribute NC_GLOBAL geospatial_lon_min double -180.0
attribute NC_GLOBAL geospatial_lon_resolution double 0.5
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String 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, Dapper/DChart, and ERDDAP.
attribute NC_GLOBAL id String dhw
attribute NC_GLOBAL infoUrl String http://coralreefwatch.noaa.gov/satellite/current/products_dhw.html (external link)
attribute NC_GLOBAL institution String NOAA Coral Reef Watch
attribute NC_GLOBAL ISO_Topic_Categories String biota, oceans
attribute NC_GLOBAL keywords String Earth Science > Oceans > Coastal Processes > Coral Reefs, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String Proper credit and citation to NOAA Coral Reef Watch are requested when using these data. The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
attribute NC_GLOBAL Metadata_Conventions String Unidata Dataset Discovery v1.0, CF-1.4
attribute NC_GLOBAL Metadata_Link String http://coralreefwatch.noaa.gov/satellite/hdf/data/meta/hdf_avhrr_coralreefwatch_current060620.txt (external link)
attribute NC_GLOBAL naming_authority String org.pacioos
attribute NC_GLOBAL northernmost_latitude double 85.25
attribute NC_GLOBAL Northernmost_Northing double 85.0
attribute NC_GLOBAL origin String U.S. DOC/NOAA Coral Reef Watch
attribute NC_GLOBAL pass_type String night
attribute NC_GLOBAL processing_level String near real-time (nrt)
attribute NC_GLOBAL project String NOAA Coral Reef Watch
attribute NC_GLOBAL projection String geographic
attribute NC_GLOBAL projection_type String mapped
attribute NC_GLOBAL publisher_email String info@pacioos.org
attribute NC_GLOBAL publisher_name String Pacific Islands Ocean Observing System (PacIOOS)
attribute NC_GLOBAL publisher_url String http://pacioos.org (external link)
attribute NC_GLOBAL raster_type String RasterPixelIsArea
attribute NC_GLOBAL references String U.S. NOAA Coral Reef Watch satellite monitoring website at http://coralreefwatch.noaa.gov/satellite
attribute NC_GLOBAL rows int 331
attribute NC_GLOBAL satellite String NOAA-19
attribute NC_GLOBAL sensor String AVHRR
attribute NC_GLOBAL source String AVHRR
attribute NC_GLOBAL sourceUrl String http://localhost:8080/thredds/dodsC/hioos/satellite/dhw (external link)
attribute NC_GLOBAL southernmost_latitude double -80.25
attribute NC_GLOBAL Southernmost_Northing double -80.0
attribute NC_GLOBAL spatial_coverage String global coverage
attribute NC_GLOBAL spatial_description String The rows of the data array are oriented in west-east direction and columns in north-south direction. Each element (pixel) is 0.5 by 0.5 degree in size. The first element (0,0) is at the northwest corner of the coverage area. The southernmost_latitude, northernmost_latitude, westernmost_longitude, and easternmost_longitude attributes give the locations of the outer edges of the boundary pixels.
attribute NC_GLOBAL spatial_resolution_column double 0.5
attribute NC_GLOBAL spatial_resolution_row double 0.5
attribute NC_GLOBAL spatial_resolution_unit String degrees
attribute NC_GLOBAL standard_name_vocabulary String CF-1.4
attribute NC_GLOBAL summary String Contains a suite of NOAA Coral Reef Watch (CRW)'s operational global satellite coral bleaching thermal stress monitoring raw data at 50km resolution produced twice-weekly in near-real-time, including sea surface temperature (SST), SST anomaly, HotSpot, and Degree Heating Weeks (DHW) data. Satellite data from the Advanced Very High Resolution Radiometer (AVHRR) on NOAA's Polar Orbiting Environmental Satellite (POES) are used to generate AVHRR-SST. The most recent AVHRR data obtained from the POES that is presently in operational mode are processed to generate the near-real-time SSTs. 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. Only the positive anomalies (potential thermal stress inducing coral bleaching) are highlighted. 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 (in minimum 0.5 week for our twice-weekly DHW) 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. Data are produced twice-weekly on every Tuesday (using AVHRR data from the previous Saturday through Monday) and on every Saturday (using AVHRR data from the previous Tuesday through Friday).
attribute NC_GLOBAL time_coverage_end String 2016-09-15T00:00:00Z
attribute NC_GLOBAL time_coverage_resolution String P0.5W
attribute NC_GLOBAL time_coverage_start String 2000-11-28T00:00:00Z
attribute NC_GLOBAL title String NOAA Global Coral Bleaching Monitoring Products
attribute NC_GLOBAL unit_latlon String degrees_east, degrees_north
attribute NC_GLOBAL Westernmost_Easting double -180.0
attribute NC_GLOBAL westernmost_longitude double 179.75
dimension time   double nValues=1639, evenlySpaced=false, averageSpacing=3 days 12h 32m 32s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 9.753696E8, 1.4738976E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
dimension latitude   float nValues=331, evenlySpaced=true, averageSpacing=-0.5
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float 85.0, -80.0
attribute latitude axis String Y
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
dimension longitude   float nValues=720, evenlySpaced=true, averageSpacing=0.5
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float -180.0, 179.5
attribute longitude axis String X
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable CRW_DHW   double time, latitude, longitude
attribute CRW_DHW _FillValue double -77.77
attribute CRW_DHW add_offset_err double 0.0
attribute CRW_DHW C_format String %6d
attribute CRW_DHW calibrated_nt int 24
attribute CRW_DHW colorBarMaximum double 16.0
attribute CRW_DHW colorBarMinimum double 0.0
attribute CRW_DHW coordsys String geographic
attribute CRW_DHW format String I6
attribute CRW_DHW fraction_digits int 1
attribute CRW_DHW inputdata-type String 16-bit (2-byte) integer
attribute CRW_DHW ioos_category String Temperature
attribute CRW_DHW long_name String Twice-weekly global 50km satellite coral bleaching Degree Heating Weeks
attribute CRW_DHW missing_value double -77.77
attribute CRW_DHW scale_factor_err double 0.0
attribute CRW_DHW units String Celsius weeks
attribute CRW_DHW valid_range double 0.0, 100.0
attribute CRW_DHW variable_info String The values in this variable array and in the valid_range attribute are in the units of x100 degree Celsius-weeks. The data values should be multiplied by the value (=0.01) contained in the scale_factor attribute to obtain the actual values in the units of degree Celsius-weeks.
variable CRW_HOTSPOT   double time, latitude, longitude
attribute CRW_HOTSPOT _FillValue double -77.77
attribute CRW_HOTSPOT add_offset_err double 0.0
attribute CRW_HOTSPOT C_format String %6d
attribute CRW_HOTSPOT calibrated_nt int 24
attribute CRW_HOTSPOT colorBarMaximum double 5.0
attribute CRW_HOTSPOT colorBarMinimum double 0.0
attribute CRW_HOTSPOT coordsys String geographic
attribute CRW_HOTSPOT format String I6
attribute CRW_HOTSPOT fraction_digits int 1
attribute CRW_HOTSPOT inputdata-type String 16-bit (2-byte) integer
attribute CRW_HOTSPOT ioos_category String Temperature
attribute CRW_HOTSPOT long_name String Twice-weekly global 50km satellite coral bleaching HotSpot
attribute CRW_HOTSPOT missing_value double -77.77
attribute CRW_HOTSPOT scale_factor_err double 0.0
attribute CRW_HOTSPOT units String Celsius
attribute CRW_HOTSPOT valid_range double 0.0, 15.0
attribute CRW_HOTSPOT variable_info String The values in this variable array and in the valid_range attribute are in the units of x100 degrees Celsius. The data values should be multiplied by the value (=0.01) contained in the scale_factor attribute to obtain the actual values in the units of degrees Celsius.
variable CRW_SST   double time, latitude, longitude
attribute CRW_SST _FillValue double -77.77
attribute CRW_SST add_offset_err double 0.0
attribute CRW_SST C_format String %6d
attribute CRW_SST calibrated_nt int 24
attribute CRW_SST colorBarMaximum double 34.0
attribute CRW_SST colorBarMinimum double -2.0
attribute CRW_SST coordsys String geographic
attribute CRW_SST format String I6
attribute CRW_SST fraction_digits int 1
attribute CRW_SST inputdata-type String 16-bit (2-byte) integer
attribute CRW_SST ioos_category String Temperature
attribute CRW_SST long_name String Twice-weekly global 50km satellite nighttime sea surface temperature
attribute CRW_SST missing_value double -77.77
attribute CRW_SST scale_factor_err double 0.0
attribute CRW_SST standard_name String sea_surface_temperature
attribute CRW_SST units String Celsius
attribute CRW_SST valid_range double -2.0, 50.0
attribute CRW_SST variable_info String The values in this variable array and in the valid_range attribute are in the units of x100 degrees Celsius. The data values should be multiplied by the value (=0.01) contained in the scale_factor attribute to obtain the actual values in the units of degrees Celsius.
variable CRW_SSTANOMALY   double time, latitude, longitude
attribute CRW_SSTANOMALY _FillValue double -77.77
attribute CRW_SSTANOMALY add_offset_err double 0.0
attribute CRW_SSTANOMALY C_format String %6d
attribute CRW_SSTANOMALY calibrated_nt int 24
attribute CRW_SSTANOMALY colorBarMaximum double 5.0
attribute CRW_SSTANOMALY colorBarMinimum double -5.0
attribute CRW_SSTANOMALY coordsys String geographic
attribute CRW_SSTANOMALY format String I6
attribute CRW_SSTANOMALY fraction_digits int 1
attribute CRW_SSTANOMALY inputdata-type String 16-bit (2-byte) integer
attribute CRW_SSTANOMALY ioos_category String Temperature
attribute CRW_SSTANOMALY long_name String Twice-weekly global 50km satellite nighttime sea surface temperature anomaly
attribute CRW_SSTANOMALY missing_value double -77.77
attribute CRW_SSTANOMALY scale_factor_err double 0.0
attribute CRW_SSTANOMALY units String Celsius
attribute CRW_SSTANOMALY valid_range double -15.0, 15.0
attribute CRW_SSTANOMALY variable_info String The values in this variable array and in the valid_range attribute are in the units of x100 degrees Celsius. The data values should be multiplied by the value (=0.01) contained in the scale_factor attribute to obtain the actual values in the units of degrees Celsius.

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