Breaking News: An initial brief look at the data suggests data manipulation at Cairns and Mount Isa and something very strange at Gladstone! I will be checking this in the next few days- watch for another post.
I have made a number of small changes to my original post below. These mainly reflect a revision of data for Barcaldine and Willis Island, and some small text changes. I no longer claim GHCN data is “out”, just much of it is inexplicably missing.
These changes have not made any change to the overall conclusions.
The adjustments, presumably for Urban Heat Island effect, are UPWARDS for both Te Kowai and Mackay, when any correction should try to reduce the effect.
In contrast, Mackay’s neighbouring regional cities of Rockhampton (330 km south) and Townsville (400km north) both have been adjusted correctly (although I have yet to verify the surrounding rural stations).
Those who mistake me for a ratbag denialist who sees no good at all in the opposite camp, please note: it seems GISS can adjust temperatures for UHI correctly when they want to.
The question remains: why did they make such unwarranted adjustments to Mackay, and why did they make such a huge reversal to Te Kowai (Mackay Sugar Mill Station)?
Thank you to readers who have given me much encouragement. I am very chuffed by your support.