Blowup and flipped 1st graph (above) from Fig. 4 below shows the year 2000 at the right side of the graph, 9000 years ago at the left side. Added red line shows solar activity in blue at the end of the record was at the highest levels of the past 9000 years. Note graph has been reversed vertically since the graph below in Fig. 4 is on a reverse scale.
Fig. 2. Variations of external factors: (top panel) solar activity (SSN) and the C9-index of geomagnetic activity (dimensionless index); (bottom panel) variations of DVIGlobal (dimensionless index) and the aerosol backscattering coefficients () at wavelength 694.3 nm. The solid vertical lines indicate the dates of intensive volcanic eruptions (Volcanic Explosive Index (VEI) ≥ 5.0) for 1880–1991.
A paper published today in the Journal of Atmospheric and Solar-Terrestrial Physics finds a significant influence of solar activity upon Earth temperature during the second half of the 20th century.
The authors find surface temperature linked to the 11-year solar cycle, and also influenced by the timing of volcanic eruptions. Once again, the claim by climate alarmists that small variations in solar activity cannot control temperature or climate has been debunked by observations.
In this paper we analyze the geographical distribution of the climate response to external forcing (solar, volcanic and geomagnetic) on the periods of 11 and 22 years. As a climate characteristic we use the data of the air-surface temperature (regional data sets).
NASA’s solar cycle primer packs a wealth of information about the sun — along with stunning imagery — into a three-minute video. Understanding solar flares, coronal mass ejections (CMEs), and flipping poles within the big picture of sunspot cycles and solar cycles makes a daunting subject easier to understand. The NASA/Goddard Space Flight Center/Scientific Visualization Studio released this video in 2011, but it’s still great.
By overlaying and fading between a surface image (in filtered white light) of the Sun to an image that reveals the magnetic structures (taken at almost the same time), we can reveal the magnetic nature of sunspots (Jan. 4, 2013). The initial still image shows quite a few sunspots scattered across the Sun's surface.
These are the sites of intense magnetic fields emerging from the Sun's interior. The black and white magnetogram image reveals the sunspots to be clusters of magnetic activity, with the paired black and white areas (dipoles) indicating intense areas of north and south magnetic polarity. Note the correlation of the two kinds of images. These magnetically active regions are often the sources of solar storms. Both the white light continuum images and the magnetogram images were taken by the Michelson Doppler Imager (MDI) instrument on SOHO.
The New Year brings dreams of solar cycles of old, so distant now, sweetly remembered for their profusion of sunspots. We hear many times from operators who became licensed as teenagers at the peak of Solar Cycle 19, in the late 1950s, when a few watts and a modest radiator on 10 meters could span the globe every day and night.
Solar Cycle 21 peaked around 1980, and was quite an improvement over the last cycle, as was Solar Cycle 22, which looked a lot like Solar Cycle 21. Cycle 22 peaked around 1991-1992, with a more pronounced double peak. The formerly teenaged ham was now solidly into middle age, and still wondering if sunspot activity would ever roar back to the levels of the late 1950s.
Solar Cycle 23 was another double peak, but significantly lower in 2000, 2001 and 2002 than the previous cycle, perhaps disappointing the middle-aged ham, who then sees solar activity slide into a long and low minimum over the next decade, in a way that was impossible to imagine as a teenaged ham enjoying Solar Cycle 19. The 160 meter operators -- quite happy in this situation with a much quieter Sun -- have no such longing for the active Sun of yesteryear.
As people around the world rang in the New Year to celebrate Earth's latest trip around the sun Monday night, our closest star marked the occasion with some fireworks of its own — a dazzling solar eruption.
The space fireworks occurred on New Year's Eve (Dec. 31) during a four-hour eruption on the sun. NASA's Solar Dynamics Observatory captured a video of the solar event. The video shows a bright plume of super-magnetic plasma erupting from the sun's surface.
"A very nice display of solar activity — it's a New Year's Eve Ballet," SDO officials wrote in a video description posted on YouTube by the mission mascot Camilla Corona SDO, a public outreach effort.
Perhaps Solar Max is already here--or maybe it has already passed. This plot of measured vs. predicted sunspot numbers illustrates the idea.
SOLAR CYCLE UPDATE: 2013 is only days away, and according to most forecasters, Solar Max should be approaching as well. But is it? Barely-increasing sunspot counts and anemic solar activity suggest an interesting possibility: Perhaps Solar Max is already here--or maybe it has already passed.
The blue curve traces monthly sunspot numbers measured since 2000. The red curve is the prediction of the NOAA-led Solar Cycle Prediction Panel. So far, Solar Cycle 24 is underperforming even compared to the panel's low expectations.
There is still a strong chance that Cycle 24 will rebound and peak in 2013 as expected. It might even be a double-peaked cycle like the cycle before it. As 2013 nears only one thing is certain: we don't know what will happen. Stay tuned....
This view of the Sun was taken on the 26th December and it had a message for all of us to see.......no, not that one:)......there is still not much going on in the way of lots of visible Sunspots, and yet we are supposed to be heading into a solar maxima during the fall of 2013.
Time will tell if the Sun will take an upturn to help out the NASA forecast but on current trends our Sun looks to be taking a holiday. Lets hope it's vacation will not be for the forecast made by Piers Corbyn, he says it could be for two or three decades. If it does that our world will be a lot cooler then it has been for the past 50 or so years......come back Global Warming all is forgiven
Scientists are gearing up for fierce solar storms next year by setting up a worldwide chain of monitoring stations to study the so-called 'solar maximum'.
Massive increases in the numbers of sunspots are expected to cause changes in the Earth's ionosphere, the shell of plasma at the top of our atmosphere.
There are fears because the current generation of satellite navigation technology has never experience a 'solar max', and changes in the ionosphere could cause problems with GPS and other signals from space.
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