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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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Hugh M Eye |
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Also ran across this about a recent electric grid simulation from the electrical standards guys themselves. [ link to spectrum.ieee.org]  [...] geomagnetic storms can occur at any point in the solar cycle, and not all solar flares or coronal mass ejections will trigger a storm. Most of them, after all, will be pointed away from Earth. Of the earthbound ones, the damage they do depends on, among other things, the polarity of the magnetic field carried by the solar wind. If the polarity is the same as that of Earth's magnetic field, most of the particles will be deflected harmlessly into space.umm..does anyone know what the polarity is on this one?? so.. if the solar wind and the Earths magnetic field are both positive polarity we have nothing to worry about. are they both positive? TIA Howdy, RTS  . Yes, usually like polarities repel each other. When the Bz field element goes south we have the best chance for ground currents and aurorae. However, recent discoveries prove this is not always the case. "The size of the breach took researchers by surprise. "We've seen things like this before," says Raeder, "but never on such a large scale. The entire day-side of the magnetosphere was open to the solar wind." The circumstances were even more surprising. Space physicists have long believed that holes in Earth's magnetosphere open only in response to solar magnetic fields that point south. The great breach of June 2007, however, opened in response to a solar magnetic field that pointed north."To the lay person, this may sound like a quibble, but to a space physicist, it is almost seismic," says Sibeck. "When I tell my colleagues, most react with skepticism, as if I'm trying to convince them that the sun rises in the west."" [ link to science.nasa.gov]
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