NCAR links long solar cycle to sun's conveyor belt

A new analysis by the National Center for Atmospheric Research of the unusually long solar cycle that ended in 2008 suggests that one reason for the long cycle could be a stretching of the sun’s conveyor belt.

The conveyor belt is a current of plasma that circulates between the sun’s equator and its poles.

The results of the NCAR study should help scientists better understand the factors controlling the timing of solar cycles and could lead to better predictions.

The sun goes through cycles lasting approximately 11 years that include phases with increased magnetic activity, more sunspots and more solar flares and phases with less activity. The level of activity on the sun can affect navigation and communications systems on Earth.

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