After getting questions from people about the BoM claim that 2000-2009 was Australia’s hottest decade I have started updating my 1992 25 station series for Australian – time consuming with 50 other things to do.
Here is the result of an experiment to fit my 1993 25 station series to the Spencer and Christy lower troposphere satellite data for a block of lats-longs forming the Australian region.
(Sorry Tasmania is missed out. Not worth including all that ocean just to get the Apple Isle.)
The BoM does not use pre-1910 data, I expect they would claim that Stevenson Screens were not in use before that date and the old open thermometer stands read warm. I think they are wrong about that – see my published paper.
The BoM published trend 1910-2009 uses “stroked and tweaked” data, which I also think is wrong.
My 25 station series would incorporate a small quota of urban warming from the town sites. Like all temperature time series, mine would get less reliable the older the data is – but I put this up as the best Australian series of its length.
Perhaps somebody knows of proxy records that cast light on late 19C warmth in Australia.