Guest essay by Mike Jonas
There are a number of organisations that produce estimates of global temperature from surface measurements. They include the UK Met Office Hadley Centre, the Goddard Institute of Space Studies (GISS) and Berkeley Earth, but there are others.
They all suffer from a number of problems. Here, an alternative method of deriving global temperature from surface measurements is proposed, which addresses some of those problems.
Note: The terms global temperature and regional temperature will be used here to refer to some kind of averaged surface temperature for the globe or for a region. It could be claimed that these would not be real temperatures, but I think that they would still be useful indicators.
Some of the problems of the existing systems are:
· Some systems use temperature measurements from surrounding weather stations (or equivalent) to adjust a station’s…
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