JoNova

A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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Magically correcting Australia’s thermometers from 1,500 kilometers away

The Australian Bureau of Meteorology uses “surrounding” thermometers to adjust for odd shifts in data (caused by things like long grass, cracked screens, or new equipment, some of which is not listed in the site information). The Bureau fishes among many possible sites to find those that happen to match up or , err “correlate” during a particular five year period. Sometimes these are not the nearest site, but ones… further away. So the BOM will ignore the nearby stations, and use further ones to adjust the record.

These correlations, like quantum entanglements, are mysterious and fleeting. A station can be used once in the last hundred years to “correct” another, but for all the other years it doesn’t correlate well — which begs the question of why it had these special telediagnostic powers for a short while, but somehow lost them? Or why a thermometer 300km away might show more accurate trends than one 50km away.

One of the most extreme examples was when Cobar in NSW was used to adjust the records at Alice Springs –almost 1500km away (h/t Bill Johnston). That adjustment was 0.6°C down in 1932 (due to a site move, we’re told). This potentially matters [...]

Bureau of Met reads tea leaves and finds warming at Horn Island that no thermometer can see

Ken Stewart has been looking at the mysterious pattern of temperatures on Horn Island — right at the top of Cape York Australia. It’s almost as far north as things get in Australia. There was no thermometer there before 1995, so the Bureau of Meteorology has rattled the nearest tea-leaves to find out how warm it was.

The towns listed on the map are its nearest neighbours. “Near”, in the Australian sense, meaning loosely within 500 kilometers.

Horn Island and it’s nearest neighbours

This, below, is the way 70 years of temperature dregs roll at all those sites.

This is what the Bureau of Meteorology sees (note the scale has changed on the temp axis). That’s two degrees of warming in far north Queensland.

So the average minimum temperature now looks half a degree cooler in 1960 than what your lying eyeballs suggest.

Ken goes into much more detail and deserves our thanks for bothering to try to unpack the mysterious merging of thermometer records in at the BoM department of Tasseomancy.

Visit his site: Garbage In, Garbage Out- Horn Island

 

[...]

Hottest Day recorded and deleted in Australia was 51.7 C in Bourke in 1909

Do the BOM even care about Australia’s climate?

Craig Kelly in our National Archives yesterday

The hottest day ever recorded in Australia with modern official equipment was Jan 3rd, 1909 in Bourke where the temperature blistered at 51.7C (125F).

Yesterday the Honorable Craig Kelly MP trawled through historic archives looking for temperature records from a century ago to see if he could confirm that it really was 125F in Bourke that day, and whether it was almost that hot in Brewarrina too. Craig Kelly wants the record restored.

The site at Bourke is one of the oldest in Australia, starting in 1871. It’s also very influential because it was used to estimate the temperatures of vast remote areas around it. By 1909 there was already nearly 40 years of data at Bourke, and the Stevenson Screen had just been replaced so it was almost brand new. There was no airport tarmac either, so in 1909 the site was probably better than most modern sites are today. But the 1909 “hottest ever record” was deleted after an investigation in 1997 by Blair Trewin. It was written off as an error partly because it was recorded on a Sunday and [...]

Announcing BomWatch: Auditing the fake warming created by site changes near the Great Barrier Reef

Fake Warming in Queensland: The BOM says the sites didn’t move, but photos show they did.

The warming at these four sites alongside the Great Barrier Reef is due to site changes, incompetence, poor record keeping and “adjustments”. Map: Terrametrics, Map data Google 2020

All along the coast near the Great Barrier Reef, the BOM has claimed temperatures have warmed in the last 50 years, and they’ve calculated it to a tenth of a degree. To get that kind of accuracy the thermometers need to be carefully placed, and the BOM needs to know exactly where they were, but they don’t.

The BOM keeps long pages of site descriptions and exact dates of moves and equipment changes, but historic photos show the records are wrong. The BOM will solemnly swear a site was in the same place for decades but photographs and archives show the sites were often moved as developments sprang up around them. The BOM didn’t keep the records and didn’t bother to check. If the thermometer moved to a warmer location or it warmed because they replaced the standard 230-litre Stevenson screen with a 60-litre toy one, or no longer cleaned it [...]

ACORN adjustments robbed Marble Bar of its legendary world record. Death Valley now longest hottest place

UPDATE: The Hon. Craig Kelly MP was so appalled by this story he has taken this to the Australian Parliament already where The Labor Party was so afraid they interrupted his allocated 15 minute speech just to stop him finishing. They even called a formal Division which means the bell is rung and all the missing MPs have to return to the Chamber to vote. See that on Kelly’s Facebook page. Who cares about our climate and who covers up for incompetent bureaucrats?!

For generations it was a Guinness Book of Records type thing. Now it’s gone. In 1924 Marble Bar set a world record of the most consecutive days of 100 °F (37.8 °C) or above, during an incredible period of 160 days starting in 1923. It was legend — but thanks to the genius homogenized adjustments, we now find out all along it was wrong. It’s another ACORN triumph, rewriting history, extinguishing the hot days of days long gone. The experts at the Australian Bureau of Meteorology (BoM) have reanalyzed the temperatures from 4000 km away and nine decades in the future and apparently it wasn’t that hot.

Chris Gillham wonders how the bureau figured out the Marble [...]

Royal Commission on Fires based on Myth of Hotter-Drier Summer

More lies by omission from the Bureau of Misinformation

When a PM gets it totally wrong, where is the BOM…

“What this royal commission is looking at are the practical things that must be done to keep Australians safer and safe in longer, hotter, drier summers.” — Scott Morrison. – ABC

The BoM, like Prof Andy Pitman of UNSW, and all other climate scientists know that “climate change” will make the world a hotter wetter place. Who are the evaporation deniers among us? Yet, apart from one momentary candid admission from Professor Andy Pitman, which of our paid public servants will correct the PM when he says things that are flagrantly, 100% wrong? Will a Royal Commission really be forced to accept a complete myth?

Looks like extra CO2 “causes” Summer rainfall in Australia to increase

Apparently, we should burn fossil fuels to stop fires. You know it makes sense…

Australian rainfall trends, Bureau of Meteorology,

But wait, what about Southern Australia?

To cover every last caveat, it’s possible that “climate change” could change where rain falls, or when rain falls — so lets look at the BoM’s own rainfall records.

CO2 apparently makes summers wetter across [...]