Met Office Hadley Centre observations datasets
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HadCRUT. (deprecated)

Data set deprecation: HadCRUT4 has been superseded by HadCRUT5.

Further use of HadCRUT4 is not recommended for purposes other than comparison with newer data sets.

This page describes updates in HadCRUT4 version HadCRUT. Previous versions of HadCRUT4 can be found here. Data for HadCRUT. can be found here.

Effects on global and hemispheric average time series

The following diagnostic plots show comparisons of global and hemispheric time series for HadCRUT. (this version) and HadCRUT. (the previous version of HadCRUT4).

Global series (NH+SH)/2

Global time-series update

Northern hemisphere

Northern hemisphere time-series update

Southern hemisphere series

Southern hemisphere time-series update

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