What if the airport radar was generating false record-high temperatures through random electrical noise?

By Jo Nova

Electronic sensors can pick up phantom electrical noise

In the last thirty years the Bureau has installed electronic thermometers all over the country. But unlike the old glass ones, the new sensitive equipment can not only pick up freak gusts of hot air, they can also pick up electrical interference. Theoretically, electronic thermometers could report phantom measurements induced by large electric fields, like perhaps by an airport radar as it sweeps through the electronics.

Indeed as Lance Pidgeon points out, the cable that runs from the platinum resistance probe runs out of the Stevenson screen, down the pole, under the ground and pops up at the electronic data-logger some 6 to 10 meters away. This makes for a nice long aerial ready to pick up “noise” and feed it into the data-logger. Those airport radars produce huge electric fields — all it takes is slight induction of a voltage difference across the 10m cable and voila… the data logger records a “warmer” second.

Here’s the small forgotten airport radar at Heathrow standing about 12 stories high. Imagine the power that puts out?

David Monniaux

Electromagnetic interference could also be triggered by mobile phones or radio […]

Why is temperature data a national secret? BOM still hiding data

By Jo Nova

Think of the BOM as an advertising agency for big-government programs, and it all makes sense…

Apparently, after the stinging criticism about them, the Bureau of Meteorology is telling journalists and academics that “they publish all the data”. Jennifer Marohasy has been fielding calls and correcting journalists on air who are fooled by this claim. Clearly this isn’t true, or she wouldn’t have needed to spend three years on FOI applications just to get a tiny part of it, (and in the least helpful form possible , like 1,000 sheets of paper). The Bureau not only don’t publish this data, they actively work to hide it and fight FOI’s.

The BOM are not only hiding national temperature data, now they are trying to hide that they are hiding it too. There is some dynamite secret here. Why is it so important — perhaps because it shows that the BOM installed new thermometers that register artificially higher temperatures than the old glass thermometers do? Thousands of “hottest ever records” have been set by new electronic thermometers that might not have been set if we still used traditional thermometers.

If the Bureau can’t be bothered giving […]

Is Climate Change really caused by electronic thermometers? (The BOM don’t want Australians to see the data)

By Jo Nova Electronic thermometers may read up to 0.7 degrees higher than glass ones.

Sometime in the mid-1990s the Australian Bureau of Meteorology replaced many of their glass thermometers with electronic sensors. They claimed they were carefully verified to match the slow way the old glass thermometers worked — after all, we wouldn’t want to use gizmos that recorded new all-time *Hottest Ever Records* that were actually just one-second gusts of hot air, would we? Our newspapers would be full of meaningless headlines about how Climate Change made us hotter than ever in history, when really it was just a mistaken effect of a new type of thermometer. Imagine that disaster of public policy…

Of course this question is so easily solved. The BoM just needed to keep the two thermometers side by side in the same boxes and record all that data. Then they could release it, showing how well the electronic gadgets mimicked the glass thermometers, and Australians everywhere would feel confident that BoM was the sterling agency they thought it was. Instead Skeptics have been asking for comparison data for nine years and the BoM has refused, hedged, asked exorbitant fees, destroyed data and […]

Just another warm summer day made to look like hell on Earth 

By Jo Nova

Everything is a PsyOp now: even the weather maps are on fire

Australia has had a mild summer, a mild year, but that’s a reason for another meaningless “hottest” headline. “Millions across NSW suffering through hottest day over two summers“. So outback New South Wales finally gets an average warm summer day and the climate map makes it look like a nuclear meltdown. Since when was 35 degrees C a shade of heat so hot it was black? (That’s 95F).

To put this in perspective, the town of Cobar near the centre of the map made it to 37C today (98.6F). But a few years ago the average temperature for the whole month of February was 37C. Any Cobar resident who feels like 37C is unusually warm, moved there this morning.

If newspapers were not paid agents or religious acolytes for the cult of climate change the headlines would have said “finally a last blast of summer warmth after two cold years”. But that doesn’t sell solar panels.

Just another warm summer day made to look like hell on Earth

No heat? No problem…

Call it color inflation. The value of any color is […]

The year without a summer? In 2022 Sydney didn’t even reach 32 degrees

Sydney Observatory in the centre of the city in 1864. (Courtesy of the State Library of NSW.)

By Jo Nova

For the first time in 163 years of records at Sydney Observatory the temperature didn’t even crack 32 degrees C (or 90F) for the whole year of 2022. Despite CO2 being at higher levels than ever, Sydney has never had temperatures that were so un-extreme.

The hottest day all year at this historic site was just 31.9 C. When researcher Chris Gillham first mentioned this, I assumed he must have meant “for the month of December”. I could not believe Sydney would go a whole year without a single hot day, but here it is. Gillham graphed the hottest day of the year at Sydney Observatory every year since 1859 and it really is unprecedented.

So far the total media attention on this point is one tweet by a weatherzone meteorologist and a paragraph in The Sydney Morning Herald. (h/t b.nice and RealClimateScience). Has the BoM even said a word? If it was the hottest year in 163 years, we’d know all about it. The BoM is an advertising agency for government policies.

And this is despite many […]

The coldest summer day in Australia and nobody notices

By Jo Nova

Weatherzone report that Thursday was the equal coldest morning ever recorded anywhere in Australia in summer time. Oddly, there were no preemptive emergency warnings the night before, no news stories announcing the area “might” hit a new record, no camera teams visited the scene and the BOM did not invent a Coldsnap Emergency Alert System to tell Australians to put on a jumper.

On Thursday, Perisher Valley in the Australian Alps got down to minus 7.0 C (19F) equaling the record set in Perisher in January 1979 and which was also reached at Charlottes Pass in December 1999.

Oddly, no one blamed this on climate change, or mentioned that it would have been worse if we hadn’t burnt all that coal. After all, without CO2, it would have been minus ten, right?

Weatherzone https://www.weatherzone.com.au/news/australias-lowest-summer-temp-on-record/973624

There were more news headlines about the heat that didn’t happen than there were about the cold that did.

While no media outlets have mentioned this cold record, many have run the story that temperatures might reach 48C this weekend and they issued plenty of warnings. As it happens the 48C was a fizzer on Saturday (the hottest was 44.9), and […]

The Australian Climate is Fine — but the State of the CSIRO and the BOM is a Crisis

By Jo Nova

The latest State of the Climate Report is out to scare everyone with plucked esoteric records based on dubious datasets adjusted with secret algorithms.

The star of the report is the 1.5 degrees of Australian “hockeystick” graph of warming (below). The Herald Sun calls it “Scary”.

The biggest crimes of this report are what they don’t say. The CSIRO and BoM must know, but don’t mention, that satellites don’t show any warming in Australia in the last ten years at all. Satellites track across all seven million square kilometers of Australia, and are calibrated against thousands of weather balloons. The CSIRO and BoM prefer to use thermometers in carparks, near runways, or close to incinerators, then they magically adjust trends at some sites up by as much as 2 degrees (that’s the whole century-long trend right there?!)

They also don’t mention that scientists in Australia were reporting that Australia was cooling from the 1890s to 1952. (Deacon et al) The ghastly heat of 1896, the Federation Drought, and the 50C record temperatures all over Australia all go down the memory hole.

Big Scary Graph according to the Sun Herald. From the State of the […]

In perfect hell for grid managers, Global Warming causes coldest start to winter in South-East Australia since WWII

The climate experts didn’t warn us we’d need more electricity for winter in Australia.

If only carbon dioxide make winter nights warmer, Australians wouldn’t have been using up stockpiles of coal and gas in the last six weeks, and setting winter-time demand records. These geniuses got everything wrong.

Coldest start to winter in decades for eastern Australia with power grid under strain

The Guardian

Early June temperatures in Melbourne didn’t go above 15 degrees for first time in 70 years as cold weather pattern starts to break

Eastern Australia’s giant cold snap is finally breaking down but not before temperatures reached lows not seen for seven decades or longer and pushed the country’s main electricity grid to the brink.

The extended chill was caused by an unusual weather pattern that locked in cool pools of air over southern and eastern states, triggering the deepest snow dumps in the alps since 1968, according to Ben Domensino, a senior meteorologist at Weatherzone.

Australia so cold it’s already setting winter electricity demand records

It’s not about record cold snaps, it’s more of a long run of below average days. In a sign of […]

The warming trend in Australia since the end of 2012 is nothing.

Across the continent downunder, “the new pause” in temperatures is now 9.6 years long as measured by the most reliable system there is — UAH satellites.

If and when we hit the Ten Year Pause, the National Climate Alarm Centres will all issue press releases, just like the other headline events, right? Just like the “Worst bleaching since last year”, “Hottest day since records began” in 1993. Six hot days in a row in one city of Australia.

Which model predicted that temperatures in Australia would do “net nothing” for a decade?

Thanks to Charles for the graph! (His explanation of calculating the “zero slope” is at #14.2.1)

The length of the zero slope pause line is now 9.6 years.

Technically, temperatures have been falling according to the UAH Satellites since May 2016.

Satellites are obviously better for global and continental temperature trends

Assuming we care about trends that is, and not just one-second records. The UAH satellites circle continuously, and cover the entire continent. They don’t just measure 100 small points with thermometers, next to airports and incinerators, but 7 million square kilometers of area.

Some smarty pants will say UAH is bad, because it doesn’t match […]

The Bureau of Meteorology finds Australia is still getting colder a century later

Surprisingly, the World War I era temperatures are still changing. Mornings that seemed nippy at the time are now susceptible to frosts.

Someone should warn the farmers — except they’re all dead.

Thanks to Chris Gillham for independently and laboriously going through the new unannounced changes in another cycle of BOM’s hidden revamp of Australia’s history. ACORN 2.2 is the latest version of the Australian Climate Observation Reference Network of “the best” 112 weather stations across Australia.

Bureau of Meteorology ‘cools the past, warms present’

Graham Lloyd, The Australian

“The bureau has now remodelled the national temperature ­dataset three times in just nine years,” Dr Jennifer Marohasy said.

In the last five years the ACORN re-revisions by the BOM have discovered another quarter of a degree of warming that we didn’t know about from the last hundred years. It’s not clear why the BOM doesn’t want to tell the world how good they are at correcting thermometer records from 1913. It seems like a remarkable skill.

The minima just keep getting cooler

Chris Gillham plots the longest running stations from the ACORN 2.2 set against the old raw readings:

Who knew all those old […]

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 […]

What the BOM don’t say: it’s not the hottest year in Australia according to satellites

For forty years NASA satellites have been circling the Earth covering our landmass day and night. But yet again, the Australian Bureau of Meteorology has released the obligatory “hottest ever year” media release without mentioning that it wasn’t the hottest year in the far more accurate satellite record of Australia, and that this new “record” depends entirely on adjustments and quite possibly on ignoring all the data recorded in the 1800s. Once again they miss the chance to remind Australians that it was almost certainly hotter for hundreds of years seven thousand years ago. Sea levels were higher then too.

They claim it’s the driest ever year, and maybe it was, but they don’t say that there is no trend in droughts and rainfall for the last 178 years.

So to help them out I’ve graphed UAH satellite temperature record which shows that last year was the 4th hottest year since 1979 when the UAH satellite data set begins.

Perhaps in 2020 the Australian Bureau of Meteorology will set their own record, and explain for the first time how and why they adjust their data continuously and post hoc. The Australian surface data is all changed with a mystical secret […]

Hottest ever day in Australia — especially if you ignore history – Eg. 1896

Tuesday was Australia’s hottest day on record sayth the Bureau of Meteorology.

And perhaps it was. But look at the temperatures reported in newspapers across the country during the month of January in 1896 when people were going mad with axes, dropping dead in coaches and railway stations and birds were falling lifeless from the trees? Emergency trains were ferrying people from the country to the mountains. Panic stricken people fled the outback on special trains and the death toll was in the hundreds.

Fifty years later scientists would publish papers talking about how Australian summers had cooled since then.

How does the BOM know for sure that it was not hotter on any one of these days? Perhaps they don’t. Wouldn’t it be more honest of the BOM to mention that? It’s not like billions of dollars depends upon it…

Seems the only time the ABC or BOM suddenly discover our historic weather records is when we get unseasonal snow or freezing cold.

See below for the links to the newspaper stories for all of these temperatures (Click to enlarge the map)

Photo: Jo Nova

The heatwave started in the West on Jan 1st and travelled […]

Excuses? Coldest Summer day, Snow in Australia and suddenly BOM remembers how inadequate their equipment is…

Snow in December: Has Australia installed too many solar panels?

Climate Change brings summer snow to Australia

Coldest maximum summer temperature on record at Thredbo

Kate Doyle, ABC News

On Monday, the second day of summer, the temperature only reached -1 degrees Celsius at the Thredbo weather station, the coldest maximum temperature recorded anywhere in Australia during summer.

But really cold records don’t matter. For the first time in history, Blair Trewin, Bureau of Meteorology points out how minor these daily records are:

Blair Trewin, senior climatologist at the Bureau of Meteorology, confirmed that it was a summer as well as December record but pointed out there was more to it.

“In some ways it’s not quite as impressive as it looks,” Dr Trewin said.

This is indeed the only instance of him ever saying that.

“This is because before automatic weather stations were installed in the 1990s, manual observations at high mountain sites [like the top of Thredbo, Mount Hotham and Falls Creek] were very limited outside the ski season.”

Exactly. When will Blair Trewin tell Australians that hot records are not as impressive as they look because […]

Whopper part II: Look what the BoM did to the last three Februarys in Australia?!

The Bureau of Meteorology did what to February?

Wow, just wow. Look what the Bureau of Meteorology has covertly done to February? Something like one third of a degree has been added to the average Australian summer maximum anomalies over the past few years according to the “expert” data from the worlds-best-practise equipment.

In the BOM Whopper Part 1 we revealed that in the BOM’s latest round of unannounced adjustments there were big increases in the rate of Australian summer warming. It turns out a lot of the summer rise comes from changes to February. Mysteriously, there were large changes to the national average of the last three years. Let that sink in.

These changes were incomprehensible because while the averaged “whole nation” got warmer, there were no changes to the data in any of the 104 individual stations.

It’s all rather spooky… but what it isn’t, is scientific.

The two main points in Bob Fernley Jones’ work:

There are big increases to measurements recorded in the last three years? Why? Yet again, the adjustments are down in the early years, up in the latter years, and overall, the rate of warming, surprise, increases thanks to man-made adjustments. He […]

Shrinking Stevenson Screens cause global warming (and peeling paint, long grass…)

The Australian BOM has lost its way

Australia’s Bureau of Meteorology is paid more than a million dollars a day, and the planet is under seige, yet the paint is peeling off some Australian thermometer screens, the grass is long, and wasps are nesting in them. What once were large 230 litre wooden boxes have shrunk to 60 litres and are now even turning to plastic. The old glass thermometers are being replaced with electronic gear that can record a burst of hot air — yet somehow those freak high spikes are supposed to be comparable to temperatures recorded 100 years ago by slow glass thermometers.

Old larger boxes protected thermometers from sudden changes in air temperature.

Left: Len Walker with a 230L screen in 1940. Right: Blair Trewin with a modern 60L Stevenson screen.

Possibly the hardest thing to explain is that even though the BOM collected comparison data on the different types of thermometers, which might help to assess new versus old, they routinely throw the data away. Compounding that, the metadata on sites is incomplete, missing, lacking in documentation. Giant six lane highways are built next to equipment sites but not recorded. There is a huge […]

The Bureau of Met disappears “Very Hot Days” graph showing the most hot days in 1952

Here’s an inconvenient fact: Australia had the highest number of very hot days in 1952, back when CO2 levels were 311ppm and humans had not yet emitted 87% of our carbon dioxide emissions. Something else was causing that extreme heat. If only the modelers knew what it was?

For years the BOM site had this informative graph below, but yesterday Craig Kelly M.P. phoned me to prepare for his Bolt Report appearance and informed me the Bureau had dropped it down the memory hole. It used to be a tab available on their Track climate trends and extremes page. Apparently in this era of global warming, the BoM doesn’t think Australians care about the trends in days over 40C in Australia, or perhaps it didn’t fit the agenda? On the Bolt Report last night Kelly explained that according to the Wayback machine, it disappeared sometime during the election campaign this year. (It was there on March 26th and gone on March 28th.)

Thankfully Paul Homewood of Notalotofpeopleknowthat kept a copy:

There’s not much a of a trend in the average number of very hot days (greater than 40C) each year in Australia. | Source: Australian Bureau of […]

Port Hedland: one man with a keen interest knows more about this site than the Bureau of Met does

If the planet was at stake you’d think the BOM would be doing this research, not unpaid volunteers.

Bill Johnston has shown again, that the BOM is apparently unaware and, perhaps most damningly, not even interested in most of the things that happened to their official thermometer sites.

Port Hedland is supposedly “one of the best” researched sites in Australia — so it is a certified ACORN site (one of the 112). The trends matter, and being remote, it influences a large area. But one man with dedication and no funding at all can find key historical maps and photos that the BOM, with its million dollar-a-day budget, cannot. Instead of doing this hard work the BOM uses the magical homogenization process “to fix” up all the anomalies by hunting for data in sites hundreds of kilometers away that can be used to adjust the records at Port Hedland. This is the secret process that even the BOM admits it cannot describe in full to anyone outside the BOM. As Johnston says, it’s a process so bad it “should be abandoned”. There is no saving the error correction that starts with bad data, missing documents, and barely any historical research […]

Australia: 2019 was not the hottest summer say satellites — it was just as hot in 1991

All that global warming and nothing to show for it?

Headlines rang out telling Australians that last summer was the hottest ever. But, according to the UAH satellite series, the hottest — just barely — was in 1991, when CO2 was a wonderful, safe 356 ppm. Since then, humans have emitted more than half — fully 58% — of all the emissions we have ever emitted since we crawled out of those dank caves. CO2 levels are almost 50 ppm higher now, and temperatures are almost as high.*

Wonder if this summer will get close to the summer of 1991 (and we wonder if Victoria will keep the lights on).

The UAH data comes from NASA satellites, which cover all the Australian land mass every day and night.

The BOM (and NASA) prefers to use Australian ground data which is based on sparse thermometers that keep changing sites and equipment, are located near airport tarmacs, buildings, and cars. When readings are too cold, the BOM sometimes deletes them. Temperatures from thermometers hundreds of kilometers apart are magically homogenized and “corrected” through a secret computer process and two thirds of our warming comes from those adjustments, not from CO2 […]