Posts Tagged ‘Solar minimum’

One cold wave is not proof of Global Cooling, but ….

January 9, 2014

One cold wave is not proof of Global Cooling,

Even if polar ice is now steadily increasing,

But a quiescent Sun is in another Minimum,

And AGW theory suffers a diverticulum,

For Climate Change is changing to a Cooling from a Warming.

From CBN News:

Global Cooling: Is an Ice Age Coming?

The fact that Arctic ice is growing may not be the good news that it seems to be. There are signs that the Earth is entering a very unpleasant cooling period. Sunspot activity remains very low.

“The sun has been very unusual for almost 15 years now,” Jens Pedersen, senior scientist at the Denmark’s Technical University, said.

Pedersen said the sun recently reached solar maximum and that there should be a lot of sunspot activity, but there isn’t.

“We have to go back 100 years to find a solar maximum that was as weak as the one we are in right now,” he told CBN News. “And the recent solar minimum…one has to go back 200 years to find one that was as weak.”

The last time the sun was this quiet, North America and Europe suffered through a weather event from the 1600s to the 1800s known as “Little Ice Age,” when the Thames River in London regularly froze solid, and North America saw terrible winters. Crops failed and people starved.

Pedersen said climate scientists know the Earth stopped warming 15 years ago. But the United Nations Intergovernmental Panel on Climate Change, of which Pedersen is an expert reviewer, suppressed a recent report from its own scientists that the U.N.’s climate model has been proven wrong.

“In particular one of the issues has been why global warming has stopped during the last 15 years, and climate scientists were very frank that the climate models do not match the climate we observe,” Pedersen said.

But politicians removed that embarrassing finding from the final draft.  It’s as if the alleged danger from climate change can’t be wrong because it is now too important.

It has become a political movement, a cash cow for climate scientists and environmental groups, and a way for world leaders to control economies and people.

“It’s a political agenda,” Dan Gainor, vice president of business and culture at the Media Research Center, said. “When you look at what the government will be able to do with climate change, it gives them (access) into every aspect of our lives.” ….. 


New study shows solar minimum does cause climate cooling

May 7, 2012

A new paper in Nature Geoscience shows that solar grand minima do indeed cause cooling of the climate in Europe. Around 2800 years ago, one of these Grand Solar Minima, the Homeric Minimum, caused a distinct climatic change in less than a decade in Western Europe. The forcing mechanisms still remain unclear but the evidence that solar effects are significant and cannot be ignored are mounting and persuasive. Now as we enter (or have already entered) a new solar minimum it remains to be seen as to whether this (Landscheidt?) Minimum will be a grand minimum to compare with the Maunder Minimum. In any event a period of global cooling seems likely.

In contrast, the evidence for any anthropogenic effects on climate is still non-existent though political and alarmist theories abound. There is as yet no direct evidence that man-made carbon dioxide emissions has any significant effect on global warming.

Regional atmospheric circulation shifts induced by a grand solar minimum by Celia Martin-Puertas, Katja Matthes, Achim Brauer, Raimund Muscheler, Felicitas Hansen, Christof Petrick, Ala Aldahan, Göran Possnert & Bas van Geel

Nature Geoscience (2012) doi:10.1038/ngeo1460


Is the Landscheidt minimum a precursor for a grand minimum?

December 23, 2010

It took 500 years with reducing solar activity to get from the Medieval maximum to the the grand Maunder minimum. The Dalton minimum came a little over a 100 years later as solar activity was increasing to its modern maximum in the years preceding Solar Cycle 22 (c. 1890 – 1990). Now with the Landscheidt minimum seemingly well established, SC 23 and the current SC 24 show a clear trend of declining solar activity. SC’s 22, 23 and 24 are remarkably similar to SC’s 3, 4 and 5. The Dalton minimum coincided with SC’s 5 and 6.

It is reasonable to assume that climatic conditions over the next 20 – 30 years will resemble those prevailing between 1790 and 1820. But SC24 has a way to go yet and it could be that solar activity for SC24 and 25 will be even lower than during the Dalton minimum and perhaps closer to the Spörer minimum but perhaps not as deep as the Maunder minimum.

But in either case the solar activity to come following the Modern maximum may well resemble the 500 years of decline in solar activity which followed the Medieval maximum.

Solar activity events recorded in radiocarbon. Present period is on left. Values since 1950 not shown: Wikipedia

The Maunder minimum in a 400 year history of sunspot numbers: Wikipedia

Image Attachment

The excellent historical weather chronology covering 1800 years put together by James A Marusek shows that the period between 1790 and 1820 was characterised not only by colder weather but also by violent fluctuations of seasonal weather. An extract of the chronology during the Dalton minimum is here: (weather chronology Dalton).

I give little credence to AGW Alarmism and the doom-saying regarding the effects of carbon dioxide. Environmentalism which was (and still is) highly admirable when concerned with the improvement of local conditions went off the rails when it went “global” and came to be dominated by the overweening arrogance of ignoring the sun and the presumption of super-computers and inadequate computer models.  Rather I am persuaded about the dominance of solar influences on the chaotic system which is our climate.

Whether or not a grand solar minimum is on its way, we are in for a decade of two of reduced activity and a cooling trend during this Landscheidt minimum.

Landscheidt minimum is here — a new Dalton is indicated

December 21, 2010
SDO Sunspot

Spotless Sun

All the indicators are that the Landscheidt minimum is here and that this is going to be close to a Dalton minimum.

2010/12/20 8:00  Five Days in a row spotless is achieved 12 months after solar cycle 24 began it’s ramp up.

A Dalton Minimum Repeat is Shaping Up

The Dalton Minimum was a period of low solar activity, named after the English meteorologist John Dalton, lasting from about 1790 to 1830. Like the Maunder Minimum and Spörer Minimum, the Dalton Minimum coincided with a period of lower-than-average global temperatures. The Oberlach Station in Germany, for example, experienced a 2.0°C decline over 20 years. The Year Without a Summer, in 1816, also occurred during the Dalton Minimum. Solar cycles 5 and 6, as shown below, were greatly reduced in amplitude.

Sunspot number till December 7th

To compare solar cycles we can also use the F10.7 radio flux values that have been recorded since 1947 in Canada. Solar cycle 20 was a weak cycle which is currently looking strong against solar cycle 24. Data is taken from the AU adjusted monthly average values.

The Sun moves to its own music

October 6, 2010

Totally impervious to vulgar 10:10 videos, biodiversity 10.10 campaigns, 0% interest rates and other goings-on on Earth, the Sun moves to its own music.

It was spotless again.

Spotless Sun 5th October 2010: NASA image

Sunspot numbers and 10.7 flux continue to be significantly lower than forecast (and the forecast for Cycle 24 were pretty low to begin with).

2010/10/05 08:00 Today was spotless although Locarno managed to see two groups. The specks were tiny and would be on the fringe of visibility on the original Wolf 64x telescope on a perfect day. What could be old area 1106 may be returning in the next two days.

Yesterday’s adjusted F10.7 flux figures recorded a high of 76.6 (81.4) and a low of 74.7 (78.8), unbelievably low.

F10.7 Radio Flux (including September 2010)

That we are in a solar minimum (the Landscheidt minimum) seems clear but whether it will be a grand minimum remains to be seen.

sc5 sc24 comparison

sc5,sc14 comparison with sc24

And the sun will surely impact our climate — but how?

And in any case the sun gets no feedback and it does not much care.

%d bloggers like this: