I hate to think of what will happen to planetary temperatures if we have the impact of a very large volcano on a recently turned negative PDO and a puny solar cycle.
Weather is the cause of a recent volcanic eruption in Indonesia. From the Associated Press:
"...Mount Karangetang, located on Siau, part of the Sulawesi island chain, burst just after midnight when heavy rains broke the volcano's hot lava dome, spitting out 1,110 degree Fahrenheit (600 Celsius) clouds of gas..."
Volcano erupts in eastern Indonesia
By NINIEK KARMINI (AP) – 1 hour ago
Phillip Bose Fusion Energy Research Pacific Technologies
I hate to think of what will happen to planetary temperatures if we have the impact of a very large volcano on a recently turned negative PDO and a puny solar cycle.
what about what will happen to planetary temperatures if we have the impact of ten very large volcanos at the same time....
The increased decay rate due to the current solar minimum should result in more heat created inside the Earth that could result in higher volcanic action and so increased risk for Katla to go BOOM!!!
The increased decay rate due to the current solar minimum should result in more heat created inside the Earth that could result in higher volcanic action and so increased risk for Katla to go BOOM!!!
I'm having a little trouble with the thought, though. The solar cycle is affecting mostly the atmosphere and surface of the planet, whereas the radioactive decay he is linking it with is inside the planet. How is the connection made?
The increased decay rate due to the current solar minimum should result in more heat created inside the Earth that could result in higher volcanic action and so increased risk for Katla to go BOOM!!!
I'm having a little trouble with the thought, though. The solar cycle is affecting mostly the atmosphere and surface of the planet, whereas the radioactive decay he is linking it with is inside the planet. How is the connection made?
The hypothesis is that the neutrinos from the reactions in the center of the Sun have some effect on the decay of radioactive isotopes. Neutrinos pass straight through the Earth only weakly interacting with matter. For that reason they escape the Sun almost instantly whereas photons from the same reaction can take 10 - 170 thousand YEARS to leave the Sun (see references in en.wikipedia.org/wiki/Sun#cite_note-NASA-43 )
Of course the very fact that neutrinos so weakly interact with matter is also the weak point of the hypothesis as they presumably will only very weakly interact with the decaying isotope.
Validation/falsification of the hypothesis will be difficult
Last Edit: Sept 11, 2010 15:59:57 GMT by nautonnier
Not new but interesting. I must note how careful they were to not include a date, failed kindergarten basics who and when.
What's Up? Solar Minimal! By Lou Mayo
"The sun is asleep. Basically, that describes the activity level of our star, the sun, over the past year or so. "
"During this time, North America and Europe experienced a "mini ice age" with average annual temperatures 1/2 degree or so below expected or normal values. Even an apparently small drop in temperature like this, however, was enough to plunge much of the Northern hemisphere and perhaps the rest of the Earth into frigidly cold winters and unexpectedly mild summers. Evidence for 18 of these minima in solar activity over the last 1,000 years can be found in measurements of carbon 14, the radioactive decay product of Nitrogen 14, in tree rings which is related an increase in Galactic Cosmic Rays (GCRs) resulting from a corresponding decrease in solar activity during these times. "
"The sun-Earth system is very complex with many variables, dependencies, and cycles, so it is hard to say. Human impact on the growing abundance of greenhouse gasses seems certain but perhaps the jury is out regarding the overall impact to our planet. In the mean time, I'm going solar!"
Bus continues on downward path, Ferrari climate only shows reaction in oceans?
"Say Goodbye to Sunspots?"
" Penn and Livingston conclude that the average magnetic field strength of sunspots has declined from about 2700 gauss—the average strength of Earth's field is less than 1 gauss—to about 2000 gauss. The reasons for the decrease are not clearly understood, but if the trend continues, sunspot field strength will drop to 1500 gauss by as early as 2016. Because 1500 gauss is the minimum required to produce sunspots, Livingston says, at that level they would no longer be possible.
The phenomenon has happened before. Sunspots disappeared almost entirely between 1645 and 1715 during a period called the Maunder Minimum, which coincided with decades of lower-than-normal temperatures in Europe nicknamed the Little Ice Age. But Livingston cautions that the zero-sunspot prediction could be premature. "It may not happen," he says. "Only the passage of time will tell whether the solar cycle will pick up." Still, he adds, there's no doubt that sunspots "are not very healthy right now." Instead of the robust spots surrounded by halolike zones called penumbrae, as seen during the last solar maximum (photo), most of the current crop looks "rather peaked," with few or no penumbrae."
"Sun’s magnetics remain in a funk: sunspots may be on their way out"
" The last solar minimum should have ended last year, but something peculiar has been happening. Although solar minimums normally last about 16 months, the current one has stretched over 26 months—the longest in a century. One reason, according to a paper submitted to the International Astronomical Union Symposium No. 273, an online colloquium, is that the magnetic field strength of sunspots appears to be waning.
…
Scientists studying sunspots for the past 2 decades have concluded that the magnetic field that triggers their formation has been steadily declining. If the current trend continues, by 2016 the sun’s face may become spotless and remain that way for decades—a phenomenon that in the 17th century coincided with a prolonged period of cooling on Earth."
