Originally posted on NOT A LOT OF PEOPLE KNOW THAT:
By Paul Homewood
I make no apology for returning to the topic of USHCN temperature adjustments, this time in Ohio. Apart from any other reason, I have been specifically requested to take a look at Ohio.
This time, rather than just looking at one month, January, I have looked at the annual adjustments, again comparing 1934 with 2013. This will give a much more comprehensive view.
The results are below.
By a combination of reducing temperatures in 1934, and increasing last year’s, an extra 1.8F of warming has been added to the year on year comparison.
Readers will recall that, according to NOAA, the overall effect of temperature adjustments was approximately a one-half degree Fahrenheit warming in the annual time series over a 50-year period from the 1940′s until the last decade of the century.
Steve McIntyre reassures me that he has checked NOAA’s calculations and finds them to…
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