1、This is known as the sunspot cycle.

2、He then correlated the reams of data he'd gathered with the 11-year sunspot cycle.

3、Many Numbers were based on the sunspot cycle, which they had discovered.

4、The next sunspot cycle will be 30% to 50% stronger than the previous one, "she says."

5、Every 22 years, the sun's magnetic field switches north and south, creating an 11-year sunspot cycle.

6、The surface heating fields over QXP die down when sunspot cycle length(SCL) become long(the sun activity die down).

7、Changes to the sunspot cycle will have an impact on our weather and climate — but not a very big one. David Biello reports.

8、The magnetic activity of stars like sun, which is the root cause of the sunspot cycle, is still poorly understood even after decades of intense study.

9、Conditions on the 15 and 10 meter novice band are slowly improving these days, although the current sunspot cycle 23 is now slowly diminishing

10、Further analyses show the variation of earth rotation rate and sunspot cycle length have important role on the climate abrupt change in the Qinghai-Xizang Plateau.

11、Some observers have tried to connect the eleven-year sunspot cycle with climate patterns, but have so far been unable to provide a satisfactory explanation of how the cycle might be involved.

12、On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.