Authors and acknowledgements

This document is currently maintained by Philip Brohan (philip.brohan @ metoffice.gov.uk). All criticism should be directed to him - put please don’t send email, raise an issue instead.

All criticism should go to the maintainer; credit is more widely distributed:

• This document was written by Philip Brohan (Met Office). He was funded by the Joint DECC and Defra Integrated Climate Programme, DECC/Defra (GA01101).

• The (pre-release) 20CRv3 data used were provided by the Twentieth Century Reanalysis team, led by Gil Compo.

• 20CRv3 is being run at the National Energy Research Scientific Computing Centre (as was 20CRv2c). As well as compute capacity, NERSC provide the data archive and access.

• CERA-20C is provided by the European Centre for Medium Range Weather Forecasting

• Observations used for validation come from the DWR dataset.

• Software used includes IRData for data access, Meteographica for weather maps, and SciPy.

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