News tagged with solar cycle

Scientists find errors in hypothesis linking solar flares to global temperature

(PhysOrg.com) -- The field of climate science is nothing if not complex, where a host of variables interact with each other in intricate ways to produce various changes. Just like any other area of science, ...

Physics / General Physics

created Apr 07, 2010 | popularity 3.6 / 5 (49) | comments 81 | with audio podcast feature

Clear link between solar activity and winter weather revealed

Scientists have demonstrated a clear link between the 11-year sun cycle and winter weather over the northern hemisphere for the first time.

Space & Earth / Earth Sciences

created Oct 10, 2011 | popularity 4.5 / 5 (18) | comments 15 | with audio podcast

What's down with the Sun? Major drop in solar activity predicted

(PhysOrg.com) -- A missing jet stream, fading spots, and slower activity near the poles say that our Sun is heading for a rest period even as it is acting up for the first time in years, according to scientists ...

Space & Earth / Space Exploration

created Jun 14, 2011 | popularity 5 / 5 (28) | comments 114 | with audio podcast

Solar Mystery Solved

(PhysOrg.com) -- Solar flares are amongst the most dangerous cosmic phenomena man has ever known. Though they pose no harm to humans, their effect on technology is vast. When they occur, they possess the capability ...

Physics / General Physics

created Aug 26, 2009 | popularity 4.4 / 5 (20) | comments 8 weblog

Study: Small fluctuations in solar activity, large influence on the climate

(PhysOrg.com) -- Subtle connections between the 11-year solar cycle, the stratosphere, and the tropical Pacific Ocean work in sync to generate periodic weather patterns that affect much of the globe, according ...

Space & Earth / Earth Sciences

created Aug 27, 2009 | popularity 4.8 / 5 (16) | comments 9

Why NASA Keeps a Close Eye on the Sun's Irradiance

(PhysOrg.com) -- For more than two centuries, scientists have wondered how much heat and light the sun expels, and whether this energy varies enough to change Earth’s climate. In the absence of a good method ...

Space & Earth / Space Exploration

created May 25, 2010 | popularity 4.5 / 5 (13) | comments 9 | with audio podcast

Are Sunspots Disappearing?

The sun is in the pits of the deepest solar minimum in nearly a century. Weeks and sometimes whole months go by without even a single tiny sunspot. The quiet has dragged out for more than two years, prompting ...

Space & Earth / Space Exploration

created Sep 03, 2009 | popularity 4.8 / 5 (27) | comments 15

Study finds 'cool' gas may form and strengthen sunspots

Hydrogen molecules may act as a kind of energy sink that strengthens the magnetic grip that causes sunspots, according to scientists from Hawaii and New Mexico using a new infrared instrument on an old telescope.

Space & Earth / Astronomy

created Jan 31, 2012 | popularity 5 / 5 (1) | comments 1 | with audio podcast

New Solar Cycle Prediction: Fewer Sunspots, But Not Necessarily Less Activity

(PhysOrg.com) -- An international panel of experts has released a new prediction for the next solar cycle, stating that Solar Cycle 24 will peak in May 2013 with a below-average number of sunspots. Led by ...

Space & Earth / Space Exploration

created May 27, 2009 | popularity 4.3 / 5 (16) | comments 5

Mystery of the Missing Sunspots, Solved?

The sun is in the pits of a century-class solar minimum, and sunspots have been puzzlingly scarce for more than two years. Now, for the first time, solar physicists might understand why.

Space & Earth / Space Exploration

created Jun 18, 2009 | popularity 4.7 / 5 (21) | comments 11

Getting ready for the next big solar storm

(PhysOrg.com) -- In Sept. 1859, on the eve of a below-average1 solar cycle, the sun unleashed one of the most powerful storms in centuries. The underlying flare was so unusual, researchers still aren't sure ...

Space & Earth / Space Exploration

created Jun 22, 2011 | popularity 4.6 / 5 (8) | comments 14 | with audio podcast

Forecasters keep eye on looming 'Solar Max'

The coming year will be an important one for space weather as the Sun pulls out of a trough of low activity and heads into a long-awaited and possibly destructive period of turbulence.

Space & Earth / Astronomy

created Dec 29, 2010 | popularity 4 / 5 (37) | comments 57

Solar activity heats up

(PhysOrg.com) -- If you've ever stood in front of a hot stove, watching a pot of water and waiting impatiently for it to boil, you know what it feels like to be a solar physicist.

Space & Earth / Space Exploration

created Apr 15, 2011 | popularity 5 / 5 (8) | comments 14 | with audio podcast

Northern Lights hit 100-year low point: Finnish researchers

The Northern Lights have petered out during the second half of this decade, becoming rarer than at any other time in more than a century, the Finnish Meteorological Institute said Tuesday.

Space & Earth / Earth Sciences

created Sep 28, 2010 | popularity 5 / 5 (5) | comments 1

Wave power can drive Sun's intense heat

A new study sheds light on why the Sun's outer atmosphere, or corona, is more than 20 times hotter than its surface. The research, led by the National Center for Atmospheric Research (NCAR), may bring scientists a step closer ...

Space & Earth / Space Exploration

created Jul 27, 2011 | popularity 5 / 5 (9) | comments 1 | with audio podcast

Solar cycle

The solar cycle, or the solar magnetic activity cycle, is the main source of periodic solar variation driving variations in space weather. The cycle is observed by counting the frequency and placement of sunspots visible on the Sun. Powered by a hydromagnetic dynamo process driven by the inductive action of internal solar flows, the solar cycle:

For more information about Solar cycle, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.