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Historic climate data is being destroyed
The Bureau have a budget of a million dollars a day, but seemingly can’t afford an extra memory stick to save historic scientific data.
In the mid 1990s thermometers changed right across Australia — new electronic sensors were installed nearly everywhere. Known as automatic weather sensors (AWS) these are quite different to the old “liquid in glass” type. The electronic ones can pick up very short bursts of heat — so they can measure extremes of temperatures that the old mercury or liquid thermometers would not pick up, unless the spike of heat lasted for a few minutes. It is difficult (impossible) to believe that across the whole temperature range that these two different instruments would always behave in the exact same way. There could easily be an artificial warming trend generated by this change (see the step change in the graphs). The only way to compare the old and new types of thermometer is to run side by side comparisons in the field and at many sites. Which is exactly what the bureau were doing, but the data has never been put in an archive, or has been destroyed. It’s not easily available […]
The story changes: first it was quality control, then equipment failure, now a smart card?
Jennifer Marohasy reports that the thermometers are working fine, but a smart card has been added to some to filter out “spurious cold” readings:
In particular, the Minister [Josh Frydenberg] was told that while the Goulburn weather station accurately measured the local temperature as minus 10.4 at 6.30 am on Sunday 2 July, a smart card reader prevented this value from being recorded as the daily minimum on the Daily Weather Observations page.
Apparently, the smart cards don’t filter out the spurious hot readings — on the hot side, all noise is good? I want the BOM to confirm or correct this. Despite knowing of this extraordinary, uncertain, situation, the Minister still has “full confidence” in the Bureau of Meteorology. A month ago, the BOM said the temperature clipping was a deliberate “quality control measure”, but then changed that to “equipment failure”. This week, Bill Kininmonth pointed out that the same equipment worked in Antarctica (where it gets to minus 50C). And I can add that David Stockwell spotted the data sheet for an Automatic Weather Station thermometer installed at Nerriga. It claims […]
Today, Graham Lloyd, and Jennifer Marohasy turn up the heat even more on the Bureau of Meteorology’s strange practice of “editing” raw data. The Bureau says it works to the “highest possible standards”. Natch. So an independent audit would clear them, silence the critics, and restore their reputation. Strangely, instead they have been apparently avoiding an independent audit for six years now and counting….
The Australian: BoM faces storm over weather data inaccuracies
It is the biggest public scandal for BoM since furious debate was sparked three years ago over its treatment of historic and contemporary temperature records to compile its new homogenised national temperature data series known as ACORN-SAT.
For an agency that screams from the rooftops every time the mercury nudges to the slightest record high, losing a half a degree Celsius here and there at the lower extremities is a pretty poor look.
In reply, once again, the BOM promises another do-it-yourself review. The Minister (Josh Frydenberg) has insisted on two external independent experts, but if the BOM gets to approve or appoint them, that box won’t be hard to tick (just ask the NZ NIWA team). Apparently the last public scandal […]
The BOM got caught this week auto-adjusting cold extremes to be less cold. Lance Pidgeon of the unofficial BOM audit team noticed that the thermometer at Goulburn airport recorded – 10.4°C at 6.17am on Sunday morning, but the official BOM climate records said it was -10.0°C. (What’s the point of that decimal place?) Either way this was a new record for Goulburn in July. (The previous coldest ever July morning was -9.1°C. The oldest day in Goulburn was in August 1994 when it reached -10.9°C).
Apparently this was an automated event where the thermometer recorded something beyond a set limit, and the value put into the official database was the artificial limit. Since colder temperatures have already been recorded in Goulburn, who thought it was a good idea to trim all future minus-ten-point-somethings as if they were automatically “spurious”?
Yesterday, the BOM have acknowledged the error and at first deleted the -10.0 figure, replacing it with a blank space. Then today, after Jennifer Marohasy’s post, they’ve corrected it.
You might think a half degree between friends is not that significant, but this opens a whole can of worms in so many ways — what are these “limits”, do they apply […]
The wind fizzled out over the South East slab of Australia during June. Predictably, that meant the wind industry lost millions, and wholesale electricity prices went up. When the Bureau of Meteorology (BOM) was asked where the wind had gone, Darren Ray, expert climatologist, said it was due to a high pressure system over the bight, which, he explained, was linked to “climate change”. Thus, as the world warms, wind farms will be progressively more useless in South Australia. Perhaps the BOM should have mentioned that before SA became dependent on wind farms? I don’t think he had thought this one through.
Perhaps the BOM is hoping that the masochistic sacrifice of South Australia will stop global warming before global warming stops the wind farms?
You might think that if the global climate models could see this coming they would have suggested that wind farms weren’t a good idea. Or maybe, since climate models predict every equal and opposite outcome in unison, the models are always right post hoc, but not so useful in projections?
Climate models predict climate change causes faster and slower winds over Australia
In 2017, Darren Ray, BOM expert, said the decrease in winds was due […]
It started on Monday on ABC AM when energy minister Josh Frydenberg was asked about the review about climate policies.
If you listen to the full AM program from 9 – 10:30mins he absolutely rules out an economy wide approach, but when asked about an electricity sector “emissions intensity scheme” he does say “wait and see”. Was it a bizarre slip of the tongue, or was he fishing to find out the strength of the opposition to bringing in a carbon price on electricity?
9 mins: He is asked about an energy “emission intensity scheme”.
Josh rejects any “economy wide approach”. “”What this review has indicated is we will look at a sector-by-sector approach. The electricity sector is the one which produces the most emissions — around a third of Australia’s emissions come from that sector.”
OhOH:
Frydenberg: We know that a large number of bodies have recommended an emissions intensity scheme a baseline and credit scheme.
Any chance of that happening?
10 minutes Frydenberg “Wait and see… we want to hear from the experts on the lowest cost of abatement… thats what we owe the Australian households […]
The World’s Best Practice climate models predicted Australia would be hotter than normal in September, instead the maximum temperature anomaly was 1 to 5 degrees below average across most of Australia.
That long range prediction was made all the way back on August 21. Four weeks later it was obvious it was wrong.
Prediction of a hot September versus actual outcome. (Click to enlarge).
Thanks to Warwick Hughes who saw this failure coming and The Marcus Review who points out the mismatch and goes on to log how much the BOM predictions for October have transformed from hotter than average to cold cold cold.
The BOM bravely predicted Tasmania would have an 80% chance of having hotter than average maximums. Temperatures ended up being spot on average. What’s 80% certainty worth? About the same as 95%.
Thanks to Chris Gillham who pointed out the big cold blob of ocean surrounding Australia on the south and west that gave Perth its coldest ever September nights. Wasn’t that cold blob present on August 21 when those models were run? On August 25th, the BOM predicted Perth’s chances of being cooler than average at 50:50. Toss a coin, or use a climate […]
File it under: Amazing
A “Weather Bomb” storm in the Atlantic generates pounding seismic waves that can be detected through the Earth as far away as Japan. They used 200+ stations and could detect the distance and direction of these microseismic waves. This could be pretty useful to figure out more about what’s under the crust in the same way that an “X-ray” works on us.
Credit: Kiwamu Nishida and Ryota Takagi
Press Release: An Atlantic “weather bomb,” or a severe, fast-developing storm, causes ocean swells that incite faint and deep tremors into the oceanic crust. These subtle waves run through the earth and can be detected in places as far away as Japan, where facilities using a method called “Hi-net” measure the amplitude of the storm’s P and S waves for the first time.
9.2 out of 10 based on 45 ratings […]
Bacteria multiply
In the West we could try to cure cancer faster with research like this, or we could pour billions into making expensive electricity to try to cool the world by 0.01°C for our grandchildren. Hmm. What to do? Which activity is more likely to make citizens richer, happier and more productive?
In this approach (below) bacteria are engineered to find cancer cells, make lots of baby bacteria until they reach a large enough colony size then do a mass self-destructo at the cancer site — releasing a tumor killing drug. A few bacteria survive the micro-apocalypse and they start another round. So far, the researchers haven’t cured any cancers, but they can shrink cancers in mice and extend mousy lives by 50%. One day this might mean cancers can be “lived with”, if not actually destroyed completely.
A critical mass is reached and the colony “bombs”.
So the bacteria can be engineered into neat little machines to manage cancer. But they are still living creatures, so are messy machines. One problem is that evolution tends to make all living machines chuck out bits of DNA that don’t improve survival, so the “survivors” will gradually take over, […]
It’s another meaningless Reachtel climate poll. Fergus Hunter at the Sydney Morning Herald has been fooled like Turnbull and Shorten, and Rudd and Gillard before them.
It’s the same old Polling Trap. Junk questions produce junk answers.
ReachTel asks motherhood questions about whether people would like to change the weather for free, and get free clean energy too. Who could say no? Without asking “what are you willing to pay?” the question is giving away coffee and cake at the side of road. Better survey’s show 80% of Australians don’t donate to environmental causes or vote for it. How committed are they? Answer, not even ten bucks a year. On flights, not even two bucks a trip. Survey after survey shows that when people rank issues, climate concerns are flat at the bottom of the barrel. Only 3% of US people think climate is most important issue.
Let’s translate that apathy to votes. Tony Abbott ran the 2013 election on the costs of making the weather nice and the people said No. No thanks, and No Way. He won in a landslide. What do people want? Cheaper electricity.
Strong climate change policy is a vote-changing matter for […]
Despite the headlines, there was no paranormal extreme in Perth last week — just a game called heatwave bingo
Perth set a sort of record last week for four days in February above 40C. The BOM and media paraparazzi glorified the latest heatwave, chasing it like it was a celebrity Kendall-Jenner-type-event when it was not that different to the heatwaves we’ve had before. Before it came, there were headlines about how it was coming, there were minute-by-minute graphs of degrees C, stories of people cooking cupcakes in hot cars, and there were projections about hypothetical bigger, longer heatwaves that might come, maybe one day, someday: look out for “Temperatures into the fifties”!
Chris Gillham points out that this record was made at the Perth Metro station. Few seemed to mention that 9km away, at Perth Airport similar kinds of heatwaves were pretty common and things had been hotter and lasted longer in years gone by. This year the four day average at the airport was 42C but in 1956 there were 5 days at an average scorching 43.7. In 1933 there was a six day heatwave of 42C average in Perth city. And there were other heatwaves a lot like […]
Imagine the crime of trying to audit the BOM?
Last year, Graham Lloyd wrote in The Australian about how the BOM had made whopping two degree adjustments to data which turned cooling trends to warming trends and instead of improving the data, it created discontinuities. The BOM’s eventual explanation lamely exclaimed that the stations “might” have moved. (And they might not, too. Who knows, but remember this is what 95% certainty looks like.) Lloyd wrote about how historical records of extreme heat at Bourke had effectively been thrown in the trash. Who cares about historical records?
In response to the embarrassment and revealing questions, Tony Abbott wanted an investigation. But Greg Hunt, and The Dept of Environment opposed the investigation and opposed doing “due diligence”. What are they afraid of? Instead, Hunt helped the BOM set up a one-day-wonder investigation with hand-picked statisticians that wasted another nine months before admitting that the BOM methods would never be publicly available or able to be replicated. If it can’t be replicated, it isn’t science.
The BOM’s defense is always that their mystery method is considered “best practice” by other agencies around the world — who share the same incentives to exaggerate warming, […]
Minister Peter Dutton made a joke about Pacific Islander time. The Offendotrons howled and called for him to be sacked. But the real problem here is not the small 1mm rise in sea-levels, it’s the the national media end up discussing global “offense” levels rather than sea levels. The scientific data shows there is no issue. Australian taxpayers pay the ABC, the CSIRO and the BOM to inform the Australian public, yet none of them explained that the real sea level rise recorded in Kiribati is less than 1 mm a year. Why not? The ABC does not clear the fog for Australians, it generates it. Dutton apologized, but he shouldn’t have. It feeds the offendotrons. They didn’t accept it, won’t stop referring to his comment, nor start talking about real problems. Apologizing only extends the time our national conversation is wasted on mindless things.
Yet again, the unfunded bloggers report the scientific data and not the institutes we pay to do that?
Noting that today’s meeting to discuss the resettlement of refugees was running late, Mr Dutton quipped that it was running to “Cape York time”, to which the Prime Minister replied: “We had a bit of […]
There are adjustments on top of adjustments. Homogenised records are being used to correct raw records. Some man-made adjustments can infect data for miles around…
Rutherglen is a long running station in central Victoria. There are no documented site moves, but the long raw trend of slow cooling was adjusted up to a warming trend. What was cooling of 0.35C per century became a 1.7C warming trend.
Jennifer Marohasy, and others, have spent months trying to get answers from the BOM explaining why these massive adjustments were made. Excuses flowed. In the latest round, the BOM claim the changes are necessary to make the Rutherglen record match the trends in the neighboring stations. What the BOM doesn’t say is that there was no warming in the neighbours either, not until after they were homogenized. The order in which stations are homogenized matters, which rather says something important about the arbitrary nature of the adjustments. Anomalous trends from far distant and poor locations can spread through waves of homogenization until better, longer stations succumb to political correctness and show the “correct” result. Small choices about which stations to to use first in the process can make a huge difference to the […]
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The danger is in the definition
Ken Stewart has been diligent at trying to understand the Bureau of Meteorology (BOM) method for finding heatwaves. He’d heard BOM head, Rob Vertessy speak on ABC radio, declaring that heatwaves were the “number one cause of death” from natural disaster in Australia. Ken wrote to Vertessy repeatedly but for some reason, despite the deadly risk to Australians, Vertessy was unable to answer the question of how to define and estimate heatwaves. (Perhaps if the BOM had The Internet, he could have sent Ken Stewart this link, which Stewart has now found himself four months later.)
The Excess Heat Factor: A Metric for Heatwave Intensity and Its Use in Classifying Heatwave Severity, John R. Nairn and Robert J. B. Fawcett (2015) [1]
With these instructions Ken has now replicated the BOM results for the 2014 heatwave in Melbourne. He has also used the same technique on Marble Bar, Western Australia, and Mawson, Antarctica and found that potentially heatwaves are a killer danger to our Antarctic researchers, and if heatwaves kill, they’d be much safer in Marble Bar. For the record, Marble Bar is the place that had 160 days in […]
There is some major messing with data going on.
What would you say if you knew that the official Perth thermometer was accurate at recording minimums for most of time in October in the eighties, but 0.7°C too warm all of December, and 1.2°C too cool in January? Bizarrely that same thermometer was back to being too warm in February! Try to imagine what situation could affect that thermometer, and require post hoc corrections of this “monthly” nature. Then imagine what could make that same pattern happen year after year. All those weather reports we listened to in Perth in 1984 were wrong (apparently). And this bizarre calendar of corrections is turning up all over Australia.
Bob Fernley-Jones has looked closely at all the adjustments done to achieve the wonderful homogenized ACORN data, as compared to the theoretically “raw” records listed in Climate Data Online (CDO) on the BOM website. He can’t know what the BOM did (since they won’t tell anyone), but he knows the outcome of their homogenization. He was shocked when he noticed a strange square-wave pattern repeating year after year; he was astonished that there were corrections calendar month by calendar month, up and down, switching […]
Cyclones down the memory hole?
July 1935, Click to enlarge | Trove
A weak tropical cyclone has formed off the Solomon Islands, and the BOM is reporting that there has never before been a July cyclone in the Queensland region. But Warwick Hughes has already posted up details showing that there have been quite a few cyclones in July. The cyclone is hardly extraordinary, and certainly not “historic”, but what about the BOM?
Forecaster David Grant on the ABC:
“We’ve never had a July tropical cyclone in the Queensland region before.
Australia has only had one other officially declared July cyclone, which formed off Western Australia in 1996.
The official tropical cyclone season runs from November 1 to April 30.”
The July cyclone “first” scores headlines in both The Australian and The Courier Mail. “Queensland weather forecasters record first cyclone in July “. But it’s wrong. Commenter Siliggy on Warwick Hughes site found a HardenUp link listing cyclones and storms in Queensland. Some of the older July cyclones listed below may not qualify as “cyclones” under the new scale, but some clearly did — and rather than being far to the north near […]
The hot desert border of Western and South Australia
Lance Pidgeon has drawn my attention to the mysteriously detailed weather maps of the Australian BOM, with their mass of contradictions. The intricate squiggles of air temperature profiles suggests an awesome array of data — especially remarkable in places like “Cook”, which is a railway station with a population of four. Eucla, the megopolis in the map, has a population of 368. The shared border in the map (right) is 674km long top to bottom.
Thankfully, after 80 years of modern technology, the weather at Eucla and in the Great Victorian Desert is much more bearable than anyone would have expected. The BOM ACORN data set works better than airconditioning. In places near Eucla, where old newspapers record 43C, the BOM tells us the highest maximum that month was “under 27C”. Far to the north of there, the highest maximum stayed under 36C, but the average for that same whole month was above 36C. Go figure. It’s a new kind of maths… [or maybe the miracle of reverse cycle a/c?]
There are a half million square kilometers in this map here and almost no […]
The BOM Technical Advisory Forum report is out. Finally there is the black and white admission that the BOM “adjusted” dataset cannot be replicated independently, has not been replicated by any other group, and even more so, that the BOM will not provide enough information for anyone who wants to try.
As we have said all along, the all new ACORN wonder-data was not created with the scientific method. Adjustments to Australian temperature data were done with a black box mystery technique that only the sacred guild at the BOM are allowed to know. Far from being published and peer reviewed, the methods are secret, and rely on — in their own words — a “supervised process” of “expert judgment” and “operator intervention”. In other words, a BOM employee makes their best guess, ruling in or out the “optimal” choices, making assumptions that are not documented anywhere.
It’s a “trust us” approach. Would we let an ASX company audit their own books? Would you buy shares in such a company, or let it inform national policy on billion dollar schemes?
Here is the entire section on replication from page 9 and 10 (below). This is what any semi-skilled PR operative […]
In the topsy turvy world of modern science, big-government has strangled science to the point where bright outsiders know more than the fully trained “experts”.
Maurice Newman, the chairman of the P.M’s business advisory council, daringly wrote in The Australian:
“It’s a well-kept secret, but 95 per cent of the climate models we are told prove the link between human CO2 emissions and catastrophic global warming have been found, after nearly two decades of temperature stasis, to be in error.”
In Senate estimates, a Greens spokesperson asked Dr Rob Vertessy, Director of the Australian Bureau of Meteorology (BoM) on his view of this. “That is incorrect,” he said, showing how little he knows about climate models, where everyone (even the IPCC) is trying to figure out excuses for their failures. Some even invent time-travelling climate models that can finally “predict” today’s climate correctly a decade after it happened.
If Maurice Newman was wrong, he was far too generous to the climate modelers. Instead of a 95% failure rate, it’s well up over 98%. Hans von Storch et al published a paper nearly two years ago comparing models and observations of a 15 year long pause. Statistically von Storch […]
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