How well do state-of-the-art climate models simulate sea level?

Are the models wrongly expecting sea level rise to closely mirror the rate of increase in atmospheric CO2 content, in all regions? It seems it doesn’t work like that. The study itself says: ‘As for simulation of the interannual variance, good agreement can be seen across different models, yet the models present a relatively low agreement with observations. The simulations show much weaker variance than observed’.
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According to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, the global mean sea level has risen faster since 1900 than over any preceding century in the last 3000 years, says Eurekalert.

This makes hundreds of coastal cities and millions of people vulnerable to a threat of higher water levels.

State-of-the-art climate models provide a crucial means to study how much and how soon sea levels will rise.

However, to what extent these models are able to represent sea level variations remains an open issue.

Satellite Temperature Data Show Almost All Climate Model Forecasts Over the Last 40 Years Were Wrong

Image credit: livescience.com

Maybe a climate model with no ‘ECS’ factor could do better? But anything that smacks of natural variation inevitably faces resistance from climate alarm promoters.
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A major survey into the accuracy of climate models has found that almost all the past temperature forecasts between 1980-2021 were excessive compared with accurate satellite measurements, says the Daily Sceptic.

The findings were recently published by Professor Nicola Scafetta, a physicist from the University of Naples. He attributes the inaccuracies to a limited understanding of Equilibrium Climate Sensitivity (ECS), the number of degrees centigrade the Earth’s temperature will rise with a doubling of carbon dioxide.

Scientists have spent decades trying to find an accurate ECS number, to no avail.

More droughts and flooding predicted as La Niña weather pattern goes into third consecutive winter

A media campaign to point the finger at the ‘greed of rich countries’ for local weather conditions is already underway in Pakistan. But NASA gave the game away after the last time this happened, in 2010: ‘The rainfall anomaly map published by NASA showed unusually intense monsoon rains attributed to La Niña’ – Wikipedia. Of course it’s now standard practice to try to blame humans in the more industrialised countries for any seriously bad weather.
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More droughts and flooding are being predicted as the La Nina weather pattern goes into its third consecutive winter – something known as a “triple dip”, says Sky News.

The UN’s World Meteorological Organisation (WMO) predicts it will last until at least the end of the year.

That means it will have spanned three consecutive northern winters for the first time this century.

La Nina is the cooling of ocean surface temperatures coupled with winds and rainfall.

Gamblers update: Eli Rabett vs Tallbloke on Arctic Sea Ice extent

Six years ago this week, I agreed to a wager with Eli Rabett on the trend in Arctic sea ice extent from 2006-2026. Now we’re more than halfway to the finish line, it’s a good time to check on progress. Here’s how the Sea Ice Extent graph looks from mid 2006 to mid 2022. The trend is still towards less ice, but not by much. There’s no ‘climate emergency tipping point’ visible in the data.

The terms we agreed are detailed in the image of the twitter convo below.

What happened to that hyper-busy 2022 hurricane season? Forecasters say wait

Saharan dust cloud over the Atlantic [image credit: NASA]

For the first time in seven years, no hurricane has formed in the Atlantic Basin by mid-August. An excess of Saharan dust is thought to be a factor.
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After two years of alphabet-exhausting tropical storms, and the disruptive remnants that have soaked the Philly region, the 2022 Atlantic hurricane season is off to a surprisingly benign start, says The Philadelphia Inquirer.

And it may have something to do with all the heat the Philly region and much of the East endured July into August.

All those ominous outlooks notwithstanding, for the first time in seven years, no hurricane has formed in the Atlantic Ocean, Caribbean Sea, or the Gulf of Mexico by Aug. 15. The long-term average for a first hurricane, one with peak winds of at least 74 mph, is Aug. 11.

ENSO update: La Niña continues

It could still be active into next spring, according to some forecasters. Unusual by its own historical (back to 1950) standards.
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La Niña continues! It’s likely that the La Niña three-peat will happen: the chance that the current La Niña will last through early winter is over 70%, says NOAA’s ENSO blog.

If it happens, this will be only the third time with three La Niña winters in a row in our 73-year record.

ENSO (El Niño/Southern Oscillation, the whole La Niña and El Niño system) has the greatest influence on weather and climate during the Northern Hemisphere cold season, so forecasters pay especially close attention when it looks like ENSO will be active in the winter.

UK heatwave: Weather forecasters report unprecedented trolling

Might be related to them trying a bit too hard to make a meal of it? They could have chosen to stick to the role their job title suggests.
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Weather forecasters faced unprecedented levels of trolling during this month’s extreme heat in the UK, according to leading figures in the industry – says BBC News.

The BBC’s team received hundreds of abusive tweets or emails questioning their reports and telling them to “get a grip”, as temperatures hit 40C.

BBC meteorologist Matt Taylor said he had never experienced anything like it in nearly 25 years working in weather.

The Royal Meteorological Society condemned the trolling.

Climate mania: When will the UK heatwave peak and how hot will it get?

Warm day in London

People in many parts of the world must be wondering what all the fuss is about, but Brits like to discuss their ever-changeable weather now and again…and again. Of course there’s now the added element of wild panic-mongering (see below) from the usual climate-obsessed suspects like the Met Office, trying to blame humans for natural events plus all the rest of their tedious hype. We’ve had hot days before, and some like to pay to find hotter ones on their travels, so let’s dial back on the shrill alarmism.
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The Met Office has issued its first red warning for extreme heat, warning of a “potentially very serious situation” in parts of England, says ITV News.

The UK Health Security Agency has increased its heat health warning from level three to level four – a “national emergency.”

Level four is reached only when a heatwave is “so severe and/or prolonged that its effects extend outside the health and social care system”, according to the UK Health Security Agency.

Illness and death may occur even among the fit and healthy, and “not just in high-risk groups.”

A cloudless future? The mystery at the heart of climate forecasts

Cloud guesswork is hindering climate models, therefore relying heavily on their outputs to decide policies must be risky. A professor commented that we may “need a Manhattan Project level of new federal funding and interagency coordination to actually solve this problem.” This can’t be brushed aside as a minor issue.
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We hear a lot about how climate change will change the land, sea, and ice says Eurekalert.

But how will it affect clouds?

“Low clouds could dry up and shrink like the ice sheets,” says Michael Pritchard, professor of Earth System science at UC Irvine. “Or they could thicken and become more reflective.”

These two scenarios would result in very different future climates. And that, Pritchard says, is part of the problem.

Dozens of ships stuck in Arctic as ice freezes early in reverse of recent warming winters

Arctic sea ice [image credit: cbc.ca]

Where are the ‘rapidly warming winters’ this time round? It seems global warming is behaving badly, in parts of the Arctic at least.
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Shipping firms blame the Russian Met office for a forecast that failed to predict the early ice, says the Telegraph.

More than two dozen cargo vessels are stuck in Russia’s Arctic ice, waiting for ice-breakers to come to their rescue, after an inaccurate forecast from the country’s Met Office.

Maritime traffic in the Northern Sea Route has been on the rise in recent years as rapidly warming winters reduce ice cover, and Russia invests in its Arctic ports in preparation for a further boom.

But this year several segments of the Northern Sea Route froze up about a fortnight earlier than usual, catching many ships unawares.

Alexei Likhachyov – director general of Russia’s state-owned nuclear energy company Rosatom, which manages the country’s nuclear-power fleet of ice-breakers – said on Monday that the ships included vessels sailing under the flags of Hong Kong and Marshall Islands.

He blamed the Russian Met office for a forecast that failed to predict the early ice, in comments to local media.

Continued here.

It’s weather wars as the Met Office forecasts mild winter while the BBC predicts a big freeze

Place bets now! Of course there could well be bits of both. The Met Office says its offering is ‘consistent with a warming climate’, but there was a very cold winter spell only 11 years ago, around the time of the last solar minimum.
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Most know from bitter experience that meteorology is far from an exact science, but Britain’s two leading weather forecasting services have given completely contradictory predictions on what we can expect this winter, reports the Daily Mail.

The Government-run Met Office has forecast a mild winter, but the BBC’s service predicts it is likely to be cold and harsh.

Experts last night described the opposing long-range forecasts as unparalleled and they risk causing havoc for businesses such as energy suppliers, transport firms, supermarkets and airlines which rely on forecasts to plan ahead.

Gulf Stream and Kuroshio Current found to be synchronized on decadal time scale

Credit: NOAA

Researchers propose another weather/climate cycle.
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A team of researchers with members affiliated with a large number of institutions across Japan has found that the Gulf stream and Kuroshio are synchronized on a decadal time scale, says Phys.org.

In their paper published in the journal Science, the group describes their study of decades of weather satellite data and the link between the two ocean currents.

Paola Cessi, with the Scripps Institution of Oceanography at the University of California, has published a Perspective piece on the work done by the team in Japan in the same journal issue.

La Niña to emerge in Aug-Oct season, U.S. weather service says

No imminent upward pressure on global temperatures resulting from the ENSO phenomenon, judging by the latest analysis. Possibly the opposite, if current trends continue.
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Aug.12 (Reuters) — The La Niña weather pattern could potentially develop during the August-October season, and last through the 2021-22 winter, the U.S. government’s National Weather Service said on Thursday. (Yahoo Finance reporting.)

The La Niña pattern is characterized by unusually low temperatures in the equatorial Pacific Ocean and is linked to floods and drought.

Science failed to predict flood and heat intensity, needs better computer – BBC

Weather forecasting technology

Maybe they need better ideas, not just more expensive modelling gear run by the same climate obsessives pushing worn-out theories that have never worked. Sales talk of ‘delivering the quantum leap’ sounds a bit thin after decades of posing as masters of climate understanding.
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Top climate scientists have admitted they failed to predict the intensity of the German floods and the North American heat dome, says BBC News.

They’ve correctly warned over decades that a fast-warming climate would bring worse bursts of rain and more damaging heatwaves.

But they say their computers are not powerful enough to accurately project the severity of those extremes.

They want governments to spend big on a shared climate super-computer.

Solar Cycle 25 Predictions Update: Talkshop vs Svalgaard

The last time we took a look at Leif Svalgaard’s SC25 prediction in 2018, he was predicting a peak amplitude of around 140SSN in 2024 according to the plot or (giving himself more latitude) “SC25 will be somewhere between SC24 and SC20, provided the Polar Field Precursor Relationship holds.”

This has been modified in his latest presentation on the subject. The peak amplitude has been revised downwards to 128+/-10SSN.

Source: https://www.leif.org/research/How-to-Predict-Solar-Cycle-25.ppt

Met Office and Microsoft to build climate supercomputer

Weather forecasting technology

Before they even build it, everyone knows what kind of answers the ‘climate supercomputer’ will be required to produce. These will then be presented as evidence of the pre-conceived climate theories, which will be tagged as ‘science’ and everyone will be expected to be impressed.
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The Met Office will work with Microsoft on a supercomputer which will help model climate change, says BBC News.

They say it will provide more accurate weather forecasting and a better understanding of climate change.

The UK government said in February 2020 it would invest £1.2bn in the project.

MET Office global temperature prediction falls 0.35C in 5 years.

Back in 2016, the UK MET Office’s median projection to the start of 2021 forecast a global temperature temperature anomaly of 1.4C above their 1850-1900 “Pre-Industrial” baseline. Their recently published five year model projection (rightmost blue blob on graph), shows a 2021 median anomaly 0.35C lower, at 1.05C.

Their HADcruT 4GL temperature time series (data since 2016 added in red on graph) shows a linear trend of +0.09C/semi-decade for the last 50 years. CO2, by far the biggest forcing in their model, is still rising in lockstep with the 50 year temperature trend. What could have caused this remarkable downward step change in their model output?

Crystal ball time as the BBC and Met Office unveil their climate postcode lottery

Brits can get their fix of climate doom here. All based on greenhouse gas theory, even though the greenhouse itself is mythical. What could possibly go wrong? Just ‘Enter your postcode above to reveal how hot it could get near you’, says the BBC. Will you be roasted, flooded or maybe both?
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How high might temperatures climb where you live – and is it likely to rain more?

The BBC and the Met Office have looked at the UK’s changing climate in detail to find out.

The Met Office climate projections cover different levels of global warming.

BBC: Can computers solve UK weird weather puzzle?

Credit: BBC

What weird weather puzzle? Static high or low pressure systems (blocking patterns) are not that uncommon or unusual, but are likely to be pounced on by headline-seeking climate alarmists. And statistics for calendar months (‘wettest February’) are to some extent just arbitrary period selection. Better theories might be at least as useful as fancier computers.
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A top climate scientist has called for more investment in climate computing to explain the UK’s recent topsy turvy weather, reports BBC News.

Prof Tim Palmer from Oxford University said there were still too many unknowns in climate forecasting.

And in the month the SpaceX launch grabbed headlines, he said just one of the firm’s billions could transform climate modelling.

Solar power plants get help from satellites to predict cloud cover

Image credit: MIT

At least they don’t need any help predicting hours of darkness.
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The output of solar energy systems is highly dependent on cloud cover, says Science Daily.

While weather forecasting can be used to predict the amount of sunlight reaching ground-based solar collectors, cloud cover is often characterized in simple terms, such as cloudy, partly cloudy or clear.

This does not provide accurate information for estimating the amount of sunlight available for solar power plants.

In this week’s Journal of Renewable and Sustainable Energy, from AIP Publishing, a new method is reported for estimating cloud optical properties using data from recently launched satellites.