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ERDDAP > info > ncdcOisst21Agg

Title Sum-
Institution Dataset ID
 data       graph  M    files  public SST, Daily Optimum Interpolation (OI), AVHRR Only, Version 2.1, Final, Global, 0.25°, 1981-
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _NCProperties String version=2,netcdf=4.8.1,hdf5=1.10.7
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL comment String Data was converted from NetCDF-3 to NetCDF-4 format with metadata updates in November 2017.
attribute NC_GLOBAL Conventions String CF-1.6, ACDD-1.3, COARDS
attribute NC_GLOBAL creator_email String oisst-help at
attribute NC_GLOBAL creator_name String NOAA NCEI
attribute NC_GLOBAL creator_type String group
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL date_created String 2024-06-16T09:12:00Z
attribute NC_GLOBAL date_modified String 2024-06-16T09:12:00Z
attribute NC_GLOBAL Easternmost_Easting double 359.875
attribute NC_GLOBAL geospatial_lat_max double 89.875
attribute NC_GLOBAL geospatial_lat_min double -89.875
attribute NC_GLOBAL geospatial_lat_resolution double 0.25
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 359.875
attribute NC_GLOBAL geospatial_lon_min double 0.125
attribute NC_GLOBAL geospatial_lon_resolution double 0.25
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String Final file created using preliminary as first guess, and 3 days of AVHRR data. Preliminary uses only 1 day of AVHRR data.
New files are downloaded daily from to NOAA NMFS SWFSC ERD by .
attribute NC_GLOBAL id String ncdcOisst21NrtAgg
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String NOAA NCEI
attribute NC_GLOBAL instrument String Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > AVHRR > Advanced Very High Resolution Radiometer
attribute NC_GLOBAL instrument_vocabulary String Global Change Master Directory (GCMD) Instrument Keywords
attribute NC_GLOBAL keywords String advanced, analysed, analysis, anomalies, anomaly, avhrr, centers, concentration, daily, data, day, degree, deviation, distribution, earth, Earth Science > Land Surface > Land Temperature > Land Surface Temperature, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, environmental, error, estimated, final, high, ice, ice distribution, information, interpolation, land, national, ncei, near, nesdis, noaa, nrt, ocean, oceans, oisst, optimum, radiometer, real, resolution, science, sea, sea_surface_temperature, sst, standard, statistics, surface, surface_temperature_anomaly, temperature, time, version, very, vhrr, zlev
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String 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, ERD, NOAA, 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_link String (external link)
attribute NC_GLOBAL naming_authority String gov.noaa.pfeg.coastwatch
attribute NC_GLOBAL Northernmost_Northing double 89.875
attribute NC_GLOBAL platform String Ships, buoys, Argo floats, MetOp-A, MetOp-B
attribute NC_GLOBAL platform_vocabulary String Global Change Master Directory (GCMD) Platform Keywords
attribute NC_GLOBAL processing_level String NOAA Level 4
attribute NC_GLOBAL product_version String Version v02r01
attribute NC_GLOBAL references String Reynolds, et al.(2007) Daily High-Resolution-Blended Analyses for Sea Surface Temperature (available at Banzon, et al.(2016) A long-term record of blended satellite and in situ sea-surface temperature for climate monitoring, modeling and environmental studies (available at Huang et al. (2020) Improvements of the Daily Optimum Interpolation Sea Surface Temperature (DOISST) Version v02r01, submitted.Climatology is based on 1971-2000 OI.v2 SST. Satellite data: Pathfinder AVHRR SST, Navy AVHRR SST, and NOAA ACSPO SST. Ice data: NCEP Ice and GSFC Ice.
attribute NC_GLOBAL sensor String Thermometer, AVHRR
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -89.875
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String This is the final version of the related dataset "ncdcOisst21NrtAgg", which has the preliminary, near real time version of these files. These final files are released about 2 weeks after the NRT files.

NOAA/National Centers for Environmental Information (NCEI) 1/4 Degree Daily Optimum Interpolation Sea Surface Temperature (OISST) Analysis, Version 2.1 - Final. NOAAs 1/4-degree Daily Optimum Interpolation Sea Surface Temperature (OISST) (sometimes referred to as Reynolds SST, which however also refers to earlier products at different resolution), currently available as version v02r01, is created by interpolating and extrapolating SST observations from different sources, resulting in a smoothed complete field. The sources of data are satellite (Advanced Very High Resolution Radiometer (AVHRR)) and in situ platforms (i.e., ships and buoys), and the specific datasets employed may change over time. At the marginal ice zone, sea ice concentrations are used to generate proxy SSTs. A preliminary version of this file is produced in near-real time (1-day latency), and then replaced with a final version after 2 weeks. Note that this is the AVHRR-ONLY DOISST, available from Oct 1981, but there is a companion DOISST product that includes microwave satellite data, available from June 2002
attribute NC_GLOBAL testOutOfDate String now-17days
attribute NC_GLOBAL time_coverage_end String 2024-06-01T12:00:00Z
attribute NC_GLOBAL time_coverage_start String 1981-09-01T12:00:00Z
attribute NC_GLOBAL title String SST, Daily Optimum Interpolation (OI), AVHRR Only, Version 2.1, Final, Global, 0.25°, 1981-present
attribute NC_GLOBAL Westernmost_Easting double 0.125
dimension time   double nValues=15610, evenlySpaced=false, averageSpacing=1 day 0h 0m 28s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 3.681936E8, 1.7172432E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Center time of the day
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 zlev   float nValues=1, onlyValue=0.0
attribute zlev actual_range float 0.0, 0.0
attribute zlev ioos_category String Location
attribute zlev long_name String Sea surface height
attribute zlev positive String down
attribute zlev standard_name String sea_surface_height
attribute zlev units String m
dimension latitude   float nValues=720, evenlySpaced=true, averageSpacing=0.25
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float -89.875, 89.875
attribute latitude axis String Y
attribute latitude grids String Uniform grid from -89.875 to 89.875 by 0.25
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=1440, evenlySpaced=true, averageSpacing=0.25
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float 0.125, 359.875
attribute longitude axis String X
attribute longitude grids String Uniform grid from 0.125 to 359.875 by 0.25
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 sst   float time, zlev, latitude, longitude
attribute sst _FillValue float -9.99
attribute sst colorBarMaximum double 32.0
attribute sst colorBarMinimum double 0.0
attribute sst ioos_category String Temperature
attribute sst long_name String Daily sea surface temperature
attribute sst standard_name String sea_surface_temperature
attribute sst units String degree_C
attribute sst valid_max float 45.0
attribute sst valid_min float -3.0
variable anom   float time, zlev, latitude, longitude
attribute anom _FillValue float -9.99
attribute anom colorBarMaximum double 3.0
attribute anom colorBarMinimum double -3.0
attribute anom ioos_category String Temperature
attribute anom long_name String Daily sea surface temperature anomalies
attribute anom standard_name String surface_temperature_anomaly
attribute anom units String degree_C
attribute anom valid_max float 12.0
attribute anom valid_min float -12.0
variable err   float time, zlev, latitude, longitude
attribute err _FillValue float -9.99
attribute err colorBarMaximum double 0.6
attribute err colorBarMinimum double 0.0
attribute err colorBarPalette String WhiteRedBlack
attribute err ioos_category String Statistics
attribute err long_name String Estimated error standard deviation of analysed_sst
attribute err units String degree_C
attribute err valid_max float 10.0
attribute err valid_min float 0.0
variable ice   float time, zlev, latitude, longitude
attribute ice _FillValue float -9.99
attribute ice colorBarMaximum double 1.0
attribute ice colorBarMinimum double 0.0
attribute ice colorBarPalette String BlackBlueWhite
attribute ice ioos_category String Ice Distribution
attribute ice long_name String Sea ice concentration
attribute ice standard_name String sea_ice_area_fraction
attribute ice units String 1
attribute ice valid_max float 1.0
attribute ice valid_min float 0.0

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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