Figure 1: Reconstruction of precipitation amounts for the edge of the Tibet Plateau. The bars on the chart depict prominent weak phases of solar activity, which correspond to Om = Oort Minimum; Wm = Wolf Minimum; Sm = Spörer Minimum; Mm = Maunder Minimum; Dm = Dalton Minimum). Figure from: Sun & Liu (2012).
Yet another study has appeared in the Journal of Geophysical Research, this one looks at the precipitation history on the Tibet Plateau of the last 1000 years.
Geologist Dr. Sebastian Lüning and chemist Prof. Fritz Vahrenholt have written a summary of this paper, which I’ve translated in the English.
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.
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).
It’s long been known that eruptions on the sun, known as solar flares, produce sunquakes, but now scientists have discovered that bursts of solar wind– known as coronal mass ejections – do as well.
The effect is described as like watching a ripple in a pond when a stone is dropped in - except the 'ripples' can shake the star to its centre.
Scientists led by University College London’s Mullard Space Science Laboratory has shown for the first time that sunquakes can be produced during eruptions of magnetic field and charged particles, as the immense magnetic structure blasts off into the Solar System
The first observation of a sunquake was reported in the late 1990s.
During the last decade it has become well established that explosions in the Sun’s atmosphere, known as solar flares, can create sunquakes through the impact of powerful beams of particles which travel into the Sun.
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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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.
News from NASA this week that on-going weak solar activity will continue, leading to the weakest solar cycle in around 100 years, could have important implications for the UK's weather.
Research over the last few years has pointed to a link between low solar activity, and incidences of 'blocking' weather patterns.
In three out of the last four winters, the jet stream has been much weaker than normal, leaving us more exposed to colder air from the north and the east, as 'blocking' areas of high pressure become established.
In these situations, winters are not just colder than average but drier, too.
It's these weather patterns that have led the government to warn of the risk of stand-pipes in the streets next summer should winter again be dry in southern and eastern areas.
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