One of the most vexing things about climate change is the endless debate about temperatures. Did they rise, did they fall or were they pushed? At times it seems like a Monty Python sketch following either the Dead Parrot or the 5 or 10 Minute Argument… So began Part 1 of ‘A Note on Temperature Anomalies’ in which Tom Quirk looked at the correlation of the five temperature series and concluded that it is surprising to see the agreement achieved by two quite independent approaches.
In response to a question following this post about the real temperature fluctuations on a monthly basis, Tom calculated the the standard deviations from a covariance analysis, Table 3.
“The last two rows are from averaging the ground based results and averaging the satellite results and then making a comparison.
The temperature and common fluctuations on the ground based constructs must be around 0.09 0C for the standard deviation.
GISS has a larger standard deviation so 0.09 0C would be easily accommodated along with the manipulations for the extra total standard deviation.
Finally the satellite data has a different and larger standard deviation to the ground based results. Perhaps the atmosphere is more turbulent than the oceans that must have a soothing effect on temperature fluctuations, as they have the largest heat memory of the components, land, sea and air.