This dataset is a mean surface temperature climatology for each calendar month and for each 5° latitude by 5° longitude grid cell of the Earth. The temperature climatology corresponds to the 1961-1990 reference period. Caution is advised when interpreting this temperature climatology since the source datasets used for temperature climatologies do not correspond perfectly with the source datasets used for temperature anomalies. Results of sensitivity tests using alternate sea ice source datasets from the Japanese Meteorological Agency (COBE-SST3) and the National Snow and Ice Data Center (modified G10010v2 appended with G02202v6) are also available.
The maximum likelihood estimation approach allows for the estimated surface temperature climatology to be temporally and spatially complete for each calendar month and for the entire surface of the Earth.
[ Derived from parent entry - See data hierarchy tab ]
Calvert, Bruce (2026). Maximum Likelihood Estimates of Temperatures using Data from the Hadley Centre and the Climate Research Unit (Version 1.4). World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/HadCRU_MLE_v1.4