Ponder these quotes from the BoM to the ABC – [Bureau of Meteorology forecaster Sean Carson said temperature lows seen this week, along with last August’s extreme run of lows only occurred once a decade. “August last year saw a pretty impressive run of overnight lows, where we saw eight consecutives nights below -5C, with … Continue reading Is the Australian Bureau of Meteorology admitting to an urban heat island in Canberra ? →
Adelaide Now is carrying this news item (HT Chris Gillham) – Weather station near Adelaide High School to more accurately measure climate change will involve cutting 18 Parkland trees The article says – [The bureau wants to relocate to the Parklands site to be able to make comparisons with historical readings gathered at a previous … Continue reading Bureau of Meteorology delusions about the urban heat island revealed in news of relocation (again) of Adelaide weather instruments →
Some essential reading for the BoM who says Canberra Airport is “non-urban” – ‘Treeless’ outer suburbs put people’s health at risk, researchers warn planners
The Australian Bureau of Meteorology (BoM) makes another dubious claim – in refusing to accept the very significant urban heat island (UHI) effect in their Canberra Airport temperature data. Simple checks of nearby stations show the 2013 winter was not the warmest ever in Tuggeranong (Canberra southern suburbs) – Burrinjuck Dam, Braidwood and Cooma. And … Continue reading BoM claims of warmest winter ever in Canberra based on Airport urban heated data →
The Sydney all time hot day record of 45.8 tops the 45.3 on 14 Jan 1939 but is in the centre of our largest urban heat island, so the number has to be seen in that perspective. We are fortunate to have a map of NSW from the Sydney Morning Herald preserved online with max … Continue reading Record hot day in Sydney 18 Jan 2013 pretty much confined to urban heat island →
Canberra/Queanbeyan is a sprawling collection of suburbs population 300,000 plus – which extends over 30km north south and nearly 20km east west. Canberra was selected as the Australian Federal Capital early last century and urbanisation would have started after the “old” Parliament House started operating in the late 1920’s. The post WWII boom in Australia … Continue reading Evidence for a strong urbanization signal; 0.3 degrees C per decade in Canberra Airport temperature data 1997-2009 →
After being pointed to a NIWA page of NZ climate extremes I saw that the hottest ever day in NZ was the 7th Feb 1973 when it was 39.2 at Ruatoria and 42.4 at Rangiora. Curiosity made me check Sydney that month and a ~40 degree heatwave ended on the 6th. Contour map of the … Continue reading New Zealand hottest ever day in February 1973 arrived directly from Australian heatwave →
I have been looking at the BoM’s new iteration of adjusted Australian temperature data – ACORN SAT. Taking a look at the pdf report 049 “Techniques involved in developing the Australian Climate Observations Reference Network – Surface Air Temperature (ACORN-SAT) dataset” p 86 of 104 Table 8 – Urban classification of ACORN-SAT locations. – we … Continue reading How the Australian Bureau of Meteorology can get vital issues wrong →
Primarily exposing faulty methodologies behind global temperature trend compilations