No sunspots, a new solar cycle and weather on Earth

The alignment of the planets, and especially that of Jupiter and Saturn, control the climate on Earth.
So explained Rhodes Fairbridge of Columbia University, a giant in science over much of the last century whose accomplishments are perhaps unsurpassed for their breadth, depth, and volume. This one man authored or co-authored 100 scientific books and more than 1,000 scientific papers, he edited the Benchmarks in Geology series (more than 90 volumes in print) and was general editor of the Encyclopaedias of the Earth Sciences. He edited eight major encyclopedias of specialized scientific papers in the atmospheric sciences and astrogeology; geomorphology; geochemistry and the earth sciences; geology, sedimentology, paleontology, oceanography and, not least, climatology.

Changes in sunspots and other solar activity, scientists have realized for more than two centuries, correlate closely with the climate of Earth, explaining the ice ages and periods of great warming. But what, Dr. Fairbridge wondered, causes these changes in our sun?

The answer, he discovered with the help of NASA and the Jet Propulsion Laboratory, lies largely in the solar system's centre of gravity. At times, the sun is at the solar system's centre of gravity. Most often, this is not the case – the orbit of the planets will align planets to one side or another of the sun. Jupiter, the planet with by far the largest mass, most influences the solar system's centre of gravity. When Uranus, Neptune and especially Saturn – the next largest planet – join Jupiter on one side of the solar system, the solar system's centre of gravity shifts well beyond the sun.

The sun's own orbit, he found, has eight characteristic patterns, all determined by Jupiter's position relative to Saturn, with the other planets playing much lesser roles. Some of these eight have orderly orbits, smooth and near-circular. During such orbits, solar activity is high and Earth heats up. Some of the eight orbits are chaotic, taking a loop-the-loop path. These orbits correspond to quiet times for the sun, and cool periods on Earth. Every 179 years or so, the sun embarks on a new cycle of orbits. One of the cooler periods in recent centuries was the Little Ice Age of the 17th century, when the Thames River in London froze over each winter. The next cool period, if the pattern holds, began in 1996, with the effects to be felt starting in 2010. Some predict three decades of severe cold.

Temperatures on Earth are but one consequence of these periodic and predictable celestial movements. Others, Dr. Fairbridge has shown, are seen everywhere on Earth: in the various and differing periodicities in rocks, glaciers, sand dunes and the circulation of the ocean; geomagnetic records; the records of the isotopes of carbon, oxygen, and hydrogen in tree rings, ice cores, air and water. They are the periodicities of climate change.

Dr. Fairbridge's best-known periodicity, which he developed in the 1950s, hypothesized that sea levels had been rising for the last 16,000 years, during which there were periodic oscillations of rise and fall. The Fairbridge curve describing this period – so named in derision because it offended the conventional wisdom – is now widely accepted. It demonstrates that, even within the past 1,000 years, sea levels have several times changed by up to two metres, and suddenly – each of these large changes occurred in fewer than 40 years.

Dr. Fairbridge's broader climate change claims – that celestial changes control Earth's temperatures – remain controversial, but less so than they were decades ago, when his was a relatively lone voice. Solar scientists with increasing regularity are publishing data establishing celestial origins to climate change on Earth. Dr. Fairbridge saw his Fairbridgecurve theories vindicated, but he won't his celestial claims. This most remarkable individual died a year ago this week, at age 92.

http://www.urban-renaissance.org/urbanren/...s/Solarjerk.pdf

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ST. PETERSBURG, August 25 (RIA Novosti)- Global cooling could develop on Earth in 50 years and have serious consequences before it is replaced by a period of warming in the early 22nd century, a Russian scientist said Friday.

Environmentalists and scientists today focus on the dangers of global warming provoked by man's detrimental effect on the planet's climate, but global cooling - though never widely supported - is a theory postulating an overwhelming cooling of the Earth which could involve glaciation.

"On the basis of our [solar emission] research, we developed a scenario of a global cooling of the Earth's climate by the middle of this century and the beginning of a regular 200-year-long cycle of the climate's global warming at the start of the 22nd century," said the head of the space research sector of the Russian Academy of Sciences' astronomical observatory.

Khabibullo Abdusamatov said he and his colleagues had concluded that a period of global cooling similar to one seen in the late 17th century - when canals froze in the Netherlands and people had to leave their dwellings in Greenland - could start in 2012-2015 and reach its peak in 2055-2060.

He said he believed the future climate change would have very serious consequences and that authorities should start preparing for them today because "climate cooling is connected with changing temperatures, especially for northern countries."

"The Kyoto initiatives to save the planet from the greenhouse effect should be put off until better times," he said, referring to an international treaty on climate change targeting greenhouse gas emissions.

"The global temperature maximum has been reached on Earth, and Earth's global temperature will decline to a climatic minimum even without the Kyoto protocol," Abdusamatov said.

On Nov.th 2007, a sunspot appeared
Sunspot 978 continues to grow but it does not yet pose a threat for strong solar flares. Credit: SOHO/MDI

Is a New Solar Cycle Beginning?

12.14.2007
http://science.nasa.gov/headlines/y2007/14....htm?list951772


Dec. 14, 2007: The solar physics community is abuzz this week. No, there haven't been any great eruptions or solar storms. The source of the excitement is a modest knot of magnetism that popped over the sun's eastern limb on Dec. 11th, pictured below in a pair of images from the orbiting Solar and Heliospheric Observatory (SOHO).

It may not look like much, but "this patch of magnetism could be a sign of the next solar cycle," says solar physicist David Hathaway of the Marshall Space Flight Center.

For more than a year, the sun has been experiencing a lull in activity, marking the end of Solar Cycle 23, which peaked with many furious storms in 2000--2003. "Solar minimum is upon us," he says.

The big question now is, when will the next solar cycle begin?


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It could be starting now.

"New solar cycles always begin with a high-latitude, reversed polarity sunspot," explains Hathaway. "Reversed polarity " means a sunspot with opposite magnetic polarity compared to sunspots from the previous solar cycle. "High-latitude" refers to the sun's grid of latitude and longitude. Old cycle spots congregate near the sun's equator. New cycle spots appear higher, around 25 or 30 degrees latitude.

The region that appeared on Dec. 11th fits both these criteria. It is high latitude (24 degrees N) and magnetically reversed. Just one problem: There is no sunspot. So far the region is just a bright knot of magnetic fields. If, however, these fields coalesce into a dark sunspot, scientists are ready to announce that Solar Cycle 24 has officially begun.

Many forecasters believe Solar Cycle 24 will be big and intense. Peaking in 2011 or 2012, the cycle to come could have significant impacts on telecommunications, air traffic, power grids and GPS systems. (And don't forget the Northern Lights!) In this age of satellites and cell phones, the next solar cycle could make itself felt as never before.

The furious storms won't start right away, however. Solar cycles usually take a few years to build to a frenzy and Cycle 24 will be no exception. "We still have some quiet times ahead," says Hathaway.

Meanwhile, all eyes are on a promising little active region. Will it become the first sunspot of a new solar cycle? Stay tuned for updates from Science@NASA.