In the year 2012 the earth reaches an extreme point in a cycle of approximately 26,000 years. The open magnetic field lines at the north pole of the earth will be pointing towards the sun, receiving a peak amount of solar particles. The sun's 11-year cycle of activity will also influence earth's weather more strongly during this time. Could galactic solstice be contributing to global warming, the greenhouse effect, and el Nino? These images are from Beyond the Vortex, by Richard Dannelley
Open Magnetic Field Lines in the Polar Cap The geomagnetic field lines in the polar caps are shown in Fig. 1 and 11 as going though the polar magnetopause as a rotational discontinuity, into the high latitude magnetosheath, through the bow shock into the interplanetary medium; this is what is meant by open field lines. Maxwell's equations require that the same amount of open flux appear at both poles. Magnetospheric Topology of Fields and Currents, Walter J. Heikkila, Magnetospheric Currents, Am. Geophys. Union, 1984, page 208 et seq.
This image is Beyond the Vortex, copyright Richard Dannelley |
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