Beam me to Planet Gore !
Posted on 10/09/2011 12:51:24 PM PDT by decimon
Recent cold winters that brought chaos to the UK and other places in northern Europe may have their roots in the Sun's varying ultraviolet emissions.
The latest satellite data shows the UV output is far more changeable than scientists had previously thought.
A UK scientific team now shows in Nature Geoscience journal how these changes lead to warmer winters in some places and colder winters in others.
The researchers emphasise there is no impact on global warming.
The Sun has recently been in a quiet phase of its regular 11-year cycle, which co-incided with three years in which the UK, along with other places in northern Europe and parts of the US, experienced cold conditions unusual in the recent record.
But unusually warm weather was felt both further south, around the Mediterranean Sea, and further north in Canada and Greenland.
"The key point is that this effect is a change in the circulation, moving air from one place to another, which is why some places get cold and others get warm," said Adam Scaife, one of the researchers on the paper, who heads the UK Met Office's Seasonal to Decadal Prediction team.
"It's a jigsaw puzzle, and when you average it up over the globe, there is no effect on global temperatures," he told BBC News.
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"The Little Ice Age wasn't really an ice age of any kind - the idea that Europe had a relentless sequence of cold winters is frankly barking, but there was a larger proportion of cold winters," he told BBC News.
"We now have a viable explanation of why that happened - nothing to do with global warming, but in terms of temperature re-distribution around the north Atlantic."
(Excerpt) Read more at bbc.co.uk ...
Ping
This is most interesting.
So, the sun and UV radiation have no impact on global warming....
Some people just need to get smacked upsida their heads...........
One of the more annoying aspects of climate change pseudoscience has been the assumption, even the assertion, that the sun’s output of energy is a constant as is the composition of said energy in terms of the entire electromagnetic spectrum.
While the pseudoscientists model, project and generally fib about CO2, water vapor, emissions, etc. they leave out the most important item in the equation i.e. the Sun.
Failure of credibility. This man is revealed as a flunkie here. The "Little Ice Age" has been documented with actual surrogate data collected worldwide. It was not simply a European cold spell. You can look it up starting with Roy Spencer's summary of the real research.
Incompetence abounds in the climate change whorehouse, and the Met Office has long been their main Madam in the UK.
Cannot be, The sun has nothing to do with the temperature on earth, only man made CO2 can do this or so I have been told. /S
Why are cold winters bringing chaos to the UK?
We always have cold winters in Wisconsin.
Some are colder than others, but I would not use the word chaos to describe when you need to put on a heavier coat and gloves.
Precious. They admit they don't know it all, and then they demand we believe this has nothing to do with warming.
Sure, we believe you. HAHAHAHAHAHAHAHAHAHAHAHHAHAHAHA!
That’s absolutely true, as dogma is inured to facts.
Bump
Oh no siree, absolutely not, no way, nohow.
I don't know why any "scientist" should have thought that. UV is way out on the short-wavelength tail of the sum's emission spectrum. Even a slight shift of the peak of that spectrum, toward either longer or shorter wavelengths, is going to make a big difference in the tails. Nothing surprising here.
These people are just plain stupid.
There is no historical data on the Sun's output in even the visible part of spectrum, let alone UV or IR, prior to the 20th century. Back then astronomers could only count sunspots, and only relatively recently.
If the "climate scientist" allows the Sun into his equations then he has no equations, and no money, and no influence. You can't build a theory of something if the most important factor in that theory is one big unknown for most of the time.
The issue is not measurements, but Planck's Law, which describes the spectrum, and was published in 1900. Once that law is known, the relationship between changes in total solar output and solar output in the UV are clear. A minor rise in temperature, that shifts the peak wavelength only slightly toward the short wavelengths, will cause a proportionately much greater increase in UV output. That's why I say no scientist should be surprised that there's a lot of variability in the sun's UV output. On the short wavelength end, Planck's law is very sensitive to minor changes in temperature.
Recent cold winters... may have their roots in the Sun's varying ultraviolet emissions.
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