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ERDDAP > info > erdHadISSTIce

Title Sum-
Institution Dataset ID
 data       graph  M    files  public HadISST Sea Ice Component, 1°, Global, Monthly, 1870-present    ?   F   I   M   background (external link) RSS Subscribe
Met Office Hadley...  ?

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL comment String Data restrictions: for academic research use only. Data are Crown copyright see (
attribute NC_GLOBAL Conventions String CF-1.6, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_email String john.kennedy at
attribute NC_GLOBAL creator_name String Met Office Hadley Centre
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL description String HadISST sea ice concentration.
attribute NC_GLOBAL Easternmost_Easting double 179.5
attribute NC_GLOBAL geospatial_lat_max double 89.5
attribute NC_GLOBAL geospatial_lat_min double -89.5
attribute NC_GLOBAL geospatial_lat_resolution double 1.0
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 -179.5
attribute NC_GLOBAL geospatial_lon_resolution double 1.0
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String 2017-01 Roy Mendelssohn ( downloaded from
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String Met Office Hadley Centre
attribute NC_GLOBAL keywords String area, centre, component, concentration, cryosphere, data, degree, distribution, Earth Science > Cryosphere > Sea Ice > Ice Extent, Earth Science > Oceans > Sea Ice > Ice Extent, extent, fraction, hadisst, hadley, ice, ice distribution, latitude, longitude, met, month, monthly, ocean, oceans, office, resolution, sea, sea_ice_area_fraction, sic, sst, surface, temperature, time, version
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String Data restrictions: for academic research use only. Data are Crown copyright see

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 Northernmost_Northing double 89.5
attribute NC_GLOBAL references String Rayner, N. A., Parker, D. E., Horton, E. B., Folland, C. K., Alexander, L. V., Rowell, D. P., Kent, E. C., Kaplan, A. Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century J. Geophys. Res.Vol. 108, No. D14, 4407 10.1029/2002JD002670
attribute NC_GLOBAL source String HadISST
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -89.5
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String The Met Office Hadley Centre's sea ice and sea surface temperature (SST) data set, HadISST1, replaces the Global sea Ice and Sea Surface Temperature (GISST) data sets, and is a unique combination of monthly globally-complete fields of SST and sea ice concentration on a 1 degree latitude-longitude grid from 1870 to date.

WARNING: 10 March 2016: A detailed analysis of HadISST ( has identified a number of problems, some of which might limit the utility of the dataset for certain scientific applications, particularly where high resolution SST data or spatial gradients of SST are required. Thanks to Dudley Chelton and Craig Risien for bringing this to our attention and their detailed analysis.

Data restrictions: for academic research use only.

Updates and supplementary information will be available from
attribute NC_GLOBAL supplementary_information String Updates and supplementary information will be available from
attribute NC_GLOBAL time_coverage_end String 2024-02-15T12:00:00Z
attribute NC_GLOBAL time_coverage_start String 1870-01-16T11:59:59Z
attribute NC_GLOBAL title String HadISST Sea Ice Component, 1°, Global, Monthly, 1870-present
attribute NC_GLOBAL Westernmost_Easting double -179.5
dimension time   double nValues=1850, evenlySpaced=false, averageSpacing=30 days 10h 28m 29s
attribute time _CoordinateAxisType String Time
attribute time actual_range double -3.154334400864E9, 1.7079984E9
attribute time axis String T
attribute time calendar String gregorian
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=180, evenlySpaced=true, averageSpacing=-1.0
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float -89.5, 89.5
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=360, evenlySpaced=true, averageSpacing=1.0
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float -179.5, 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 sic   float time, latitude, longitude
attribute sic _FillValue float -1.0E30
attribute sic cell_methods String time: lat: lon: median
attribute sic colorBarMaximum double 1.0
attribute sic colorBarMinimum double 0.0
attribute sic ioos_category String Ice Distribution
attribute sic long_name String Monthly 1 degree resolution sea ice concentration
attribute sic missing_value float -1.0E30
attribute sic standard_name String sea_ice_area_fraction
attribute sic units String 1

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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