Sentences with phrase «solar magnetic reversals»
Not exact matches
Previous research has suggested that Earth's protective magnetic field would be weaker across such periods of frequent reversal, compromising its ability to shield life from harmful solar radiation and cosmic rays.
http://www.sciencemag.org/
«The planet has been through a lot worse than us... been through earthquakes, volcanoes, plate tectonics, continental drift, solar flares, sun spots, magnetic storms, the magnetic reversal of the poles, hundreds of thousands of years of bombardment by comets and asteroids and meteors, worldwide floods, tidal waves, worldwide fires, erosion, cosmic rays, recurring ice ages — and we think some plastic bags and some aluminum cans are going to make a difference?»
Hale suggested that the sunspot cycle period is 22 years, covering two polar reversals of the solar magnetic dipole field... The start of the 22 - year cycle begins... This process of sunspot formation and migration continues until the solar dipole field reverses (after about 11 years).
The reversal of magnetic field strength from one solar hemisphere to the other may have significant effects on cosmic ray modulation, for example.
Who is to say that the effects of the polarity reversal of the Sun's magnetic field (marking Solar Cycle 24's midpoint) will not act in concert with other natural forces to amplify the effects of the Sun on the Earth's future climate in ways we can not comprehend?