This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 


Met Office Hadley Centre Logo

HadCRUT4: gridded dataset of global historical surface temperature anomalies produced by the Met Office Hadley Centre

Status: Not defined
Publication State:


The gridded data are near surface temperature anomalies from 1850 (relative to 1961-1990) produced as a blend of the CRUTEM4 land-surface air temperature dataset and the HadSST3 sea-surface temperature (SST) dataset. The dataset is presented as an ensemble of 100 dataset realisations that sample the distribution of uncertainty in the global temperature record given current understanding of non-climatic factors affecting near-surface temperature observations.

This ensemble approach allows characterisation of spatially and temporally correlated uncertainty structure in the gridded data, for example arising from uncertainties in methods used to account for changes in SST measurement practices, homogenisation of land station records and the potential impacts of urbanisation.

The HadCRUT4 data are neither interpolated nor variance adjusted.

Abbreviation: Not defined
Keywords: HadCRUT4

keywords:      HadCRUT4
inputDescription:      None
outputDescription:      None
softwareReference:      None
Previously used record indentifiers:
No related previous identifiers.
Related parties
Operators (1)