Irregular heartbeat of the Sun driven by double dynamo

  • metta

    Posts: 39118

    Jul 13, 2015 5:40 PM GMT
    Irregular heartbeat of the Sun driven by double dynamo


    https://www.ras.org.uk/news-and-press/2680-irregular-heartbeat-of-the-sun-driven-by-double-dynamo



    (Title Updated)

    Original:

    A 'mini ice age' is coming in the next 15 years

    http://www.sciencealert.com/a-mini-ice-age-is-coming-in-the-next-15-years

    Maunder Minimum

    "The Maunder Minimum, also known as the "prolonged sunspot minimum", is the name used for the period starting in about 1645 and continuing to about 1715 when sunspots became exceedingly rare, as noted by solar observers of the time."



    "Some scientists hypothesize that the dense wood used in Stradivarius instruments was caused by slow tree growth during the cooler period. Instrument maker Antonio Stradivari was born a year before the start of the Maunder Minimum."

    https://en.wikipedia.org/wiki/Maunder_Minimum
  • Posted by a hidden member.
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    Jul 13, 2015 5:55 PM GMT
    Guys... this has become serious, if we don't wanna end up with frozen nuts,

    1771692.jpg
    images?q=tbn:ANd9GcQcPCNYIHVWQZPuhUExtut

    We're gonna have to keep each other warm icon_rolleyes.gif
  • metta

    Posts: 39118

    Jul 13, 2015 6:15 PM GMT
    Actually, forget that link....this one is better:


    Irregular heartbeat of the Sun driven by double dynamo
    https://www.ras.org.uk/news-and-press/2680-irregular-heartbeat-of-the-sun-driven-by-double-dynamo
  • Posted by a hidden member.
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    Jul 13, 2015 7:37 PM GMT
    That's what they were saying back in the late 70s that was to start for 50 or 60 years. What if 'they' were 'right' all along?

    Better bulk up on plant food (CO2) to preserve whatever warmth there is.

    Make one wonder .... here it is July 13 and it's 67 degrees out right now.
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    Jul 13, 2015 7:46 PM GMT
    " suggest that solar activity will fall by 60 per cent during the 2030s to conditions last seen during the ‘mini ice age’ that began in 1645."

    Fall by 60% is quite a worrisome number.
  • metta

    Posts: 39118

    Jul 14, 2015 4:23 PM GMT
    News about an imminent ‘mini ice age’ is trending — but it’s not true


    "whatever climate effects the phenomenon may have will be dwarfed by the warming caused by greenhouse gas emissions."


    http://www.washingtonpost.com/news/morning-mix/wp/2015/07/14/news-about-an-imminent-mini-ice-age-is-trending-but-its-not-true/
  • roadbikeRob

    Posts: 14351

    Jul 14, 2015 4:37 PM GMT
    freedomisntfree saidThat's what they were saying back in the late 70s that was to start for 50 or 60 years. What if 'they' were 'right' all along?

    Better bulk up on plant food (CO2) to preserve whatever warmth there is.

    Make one wonder .... here it is July 13 and it's 67 degrees out right now.
    This is another valid reason why I question all this propaganda about global warming. There is a lot more to climate change than meets the eye.
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    Jul 14, 2015 5:02 PM GMT
    metta8 saidNews about an imminent ‘mini ice age’ is trending — but it’s not true


    "whatever climate effects the phenomenon may have will be dwarfed by the warming caused by greenhouse gas emissions."


    http://www.washingtonpost.com/news/morning-mix/wp/2015/07/14/news-about-an-imminent-mini-ice-age-is-trending-but-its-not-true/


    "dwarfed by the warming caused by greenhouse gas emissions"

    If the sun theory is true, better hope for a little 'plant food' in the air.
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    Jul 14, 2015 5:08 PM GMT
    roadbikeRob said
    freedomisntfree saidThat's what they were saying back in the late 70s that was to start for 50 or 60 years. What if 'they' were 'right' all along?

    Better bulk up on plant food (CO2) to preserve whatever warmth there is.

    Make one wonder .... here it is July 13 and it's 67 degrees out right now.
    This is another valid reason why I question all this propaganda about global warming. There is a lot more to climate change than meets the eye.


    A 60% drop in solar output would be a lil' difficult to overcome with some greenhouse gases, especially plant food.

    Could be that the late 70s early 80s global cooling alarmists were correct the entire time?
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    Jul 15, 2015 3:56 AM GMT
    This is a very short-term phenomenon if you follow the sources; the cooling effect would last just a couple years. If it does produce an ice age, it would be more of a "micro" ice age than a "mini" ice age. The short cycle is about 11 years, so the 70-year period would have contained about 6 recurrences of these very short cooldowns (would have to be about 3 years if the whole cycle is 11), with the middle one or two troughs being the most pronounced.

    This is not even remotely a prediction of a long-term trend-setting cooldown if one reads the abstracts or the explanations. More to the point, the prediction is testing the model itself, not forecasting doom or salvation.

    I'm kind of hoping that by that time earth simulations will be good enough to make testable predictions of effects, if any, on the ice caps, but that has yet to be seen.
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    Jul 19, 2015 3:53 AM GMT
    I once was invited to attend a multidisciplinary planetology conference where they mixed up people from different disciplines. Anyhow, I got assigned to lead the "dynamo" bunch, a topic about which I knew absolutely nothing. And I was supposed to write the book chapter summarizing all of their work and relating it to habitability of planets.

    What I could figure out was that every single one of them disagreed with all of the others. None of them would agree to work together on anything, and they all wanted to write their own separate chapters. The book wasn't going to be that big. I wasn't getting paid.

    I still get a little sick when anybody starts talking about planetary dynamos, and tend to ignore their grand pronouncements.

    Do you really have any data to support that, or are you just trying to get someone to pick up your bar tab?
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    Jul 19, 2015 4:49 AM GMT
    Maybe by then we'll have a colony setup on Mars and won't have to worry about it. icon_razz.gif