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Tampering With CET

July 2, 2023

NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

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https://www.metoffice.gov.uk/hadobs/hadcet/data/download.html

Last year the Met Office made some changes to the CET record. I did not pay too much attention at the time, as the changes appeared to be minor.

However, when I was writing my review of 2022, I noticed that whereas the summer of 1995 had been 0.1C warmer than 2018’s in the original Version 1, they had changed places in Version 2. To be precise, the summer of 1995 had been cooled by 0.07C, whilst 2018’s had been warmed by 0.13C.

I have now got around to analysing the full dataset, and the chart below shows the annual adjustments made:

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