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Solar Dynamo Still Anemic, Magnetism and UV Lax

radioweather writes "While we are well along into solar cycle 24, there remains a significant gap between the predictions of where we should be, and where we actually are in the progression of the cycle. Recently, the sun went spotless again, and the solar Ap geomagnetic index, an indicator of the solar magneto, hit zero. It is something you really don't expect to see this far along into the cycle. In other solar news, scientists monitoring the SORCE solar satellite have found that solar ultraviolet emissions have dropped significantly in the past few years. The Solar Irradiance Monitor on the satellite 'suggests that ultraviolet irradiance fell far more than expected between 2004 and 2007 — by ten times as much as the total irradiance did — while irradiance in certain visible and infrared wavelengths surprisingly increased, even as solar activity wound down overall.'"

4 of 156 comments (clear)

  1. Re:oh noes! by jmorris42 · · Score: 4, Interesting

    Could be. We know Mr. Sun can take long naps. And the one time we know for sure it happened was also known as the Little Ice Age.

    Don't go placing bets yet but hedging against it might be a prudent thing.

    --
    Democrat delenda est
  2. Re:oh noes! by The_mad_linguist · · Score: 5, Funny

    Don't worry, congress recently declared it Too Big To Fail

  3. Re:oh noes! by GrumblyStuff · · Score: 5, Funny

    Exactly. Most people think that humans naturally wake in the morning and sleep at night but that only came about during the 1900s. It was all part of FDR's socialist alien agenda to chill the planet by encouraging people to work during the day and thus arriving at work in the morning. Notice that the rise of the sun slows after the morning commute and falls in conjunction with the evening return. Coincidence? I think not.

  4. Re:Solar Cycle by ikkonoishi · · Score: 4, Informative

    http://en.wikipedia.org/wiki/Solar_cycle

    For those who still don't understand.