An Updated Assessment of Near‐Surface Temperature Change From 1850: The HadCRUT5 Data Set

Abstract We present a new version of the Met Office Hadley Centre/Climatic Research Unit global surface temperature data set, HadCRUT5. HadCRUT5 presents monthly average near‐surface temperature anomalies, relative to the 1961–1990 period, on a regular 5° latitude by 5° longitude grid from 1850 to 2018. HadCRUT5 is a combination of sea‐surface temperature (SST) measurements over the ocean from ships and buoys and near‐surface air temperature measurements from weather stations over the land surface. These data have been sourced from updated compilations and the adjustments applied to mitigate the impact of changes in SST measurement methods have been revised. Two variants of HadCRUT5 have been produced for use…

• DF
  Department for Environment, Food and Rural Affairs, UK Government
• SR
  Sight Research UK

  Awards: NE/N006038/1, NE/N006348/1
• MO
  Met Office
• NE
  Natural Environment Research Council

  Awards: NE/N006348/1, NE/N006348/1, NE/N006038/1