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Light shines in High Arctic darkness

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Light shines in High Arctic darkness


Science | 208071 hits | Dec 27 6:02 pm | Posted by: wildrosegirl
9 Comment

People in the High Arctic say their 24-hour darkness isn't as dark as it used to be, and a weather researcher says it's because of the warming climate.

Comments

  1. by avatar Brenda
    Tue Dec 28, 2010 2:51 am
    I dunno... Wouldn't it be more logical that the Earth's ax slightly changed?

  2. by avatar Gunnair  Gold Member
    Tue Dec 28, 2010 2:55 am
    These people living up there are clueless. Irrespective of the fact that they are experiencing it over many years and can see change, they are wrong. The Arctic is not cooling and there's tons of ice too.

  3. by avatar DrCaleb
    Tue Dec 28, 2010 11:32 pm
    "Brenda" said
    I dunno... Wouldn't it be more logical that the Earth's ax slightly changed?


    Yes, because the axis does shift, on a 100,000 year cycle. But it doesn't change the angle of the sun that much, or that quickly. And we'd notice if it was due to the shift of the axis. But it isn't. The pollution in the atmosphere, we can measure and is very real.

    And damn straight Gunny! Climate models are always right, and always supersede observational data.

  4. by avatar BartSimpson  Gold Member
    Wed Dec 29, 2010 12:06 am
    Goodness, the gymnastics the AGW cultists go through must make them awful tired at the end of the day.

    Now they're literally proposing that sunlight is caused by global warming.

    :roll:

    Among the other Signs of the Coming Climate Apocalypse:

    You can see a large white object in space some nights and not on others! 8O

    People pee more after drinking too much beer! 8O

    When you throw something up in the air it eerily comes back down! 8O

    Birds can be seen flying to cooler regions every spring! 8O

    Old and sick people die with an alarming frequency! 8O

    Leaves accumulate on my lawn every fall! 8O

    It gets really bright every morning! 8O

  5. by avatar ShepherdsDog
    Wed Dec 29, 2010 12:14 am
    before you know it, they'll be saying bread and wine turn into flesh and blood and Mary is the mother of God

  6. by avatar BartSimpson  Gold Member
    Wed Dec 29, 2010 12:17 am
    "ShepherdsDog" said
    before you know it, they'll be saying bread and wine turn into flesh and blood and Mary is the mother of God


    Forgive me if I won't lay money on that. :wink:

  7. by avatar ShepherdsDog
    Wed Dec 29, 2010 12:19 am
    it's becoming that bad with them, establishing an orthodoxy of belief(complete with identified heresies) and relying on rhetoric rather than real science.

  8. by avatar sandorski
    Wed Dec 29, 2010 12:33 am
    "BartSimpson" said
    Goodness, the gymnastics the AGW cultists go through must make them awful tired at the end of the day.

    Now they're literally proposing that sunlight is caused by global warming.

    :roll:

    Among the other Signs of the Coming Climate Apocalypse:

    You can see a large white object in space some nights and not on others! 8O

    People pee more after drinking too much beer! 8O

    When you throw something up in the air it eerily comes back down! 8O

    Birds can be seen flying to cooler regions every spring! 8O

    Old and sick people die with an alarming frequency! 8O

    Leaves accumulate on my lawn every fall! 8O

    It gets really bright every morning! 8O



    fail

  9. by avatar fifeboy
    Wed Dec 29, 2010 1:46 am
    This is not new. The northern mirage is a well studied thing. By the way, you can see this on the prairies of southern Manitoba and Saskatchewan as well.




    The Novaya Zemlya effect: An arctic mirage
    Abstract
    The arctic mirage is an atmospheric refraction phenomenon caused by a temperature inversion in the lower atmosphere. It is classified into three basic types, two of which (hillingar and hafgerdingar effects) occur fairly frequently. The third is the Novaya Zemlya effect, reported by polar explorers on several occasions as an anomalous sunrise during the polar winter, when the position of the sun was below the horizon. The Novaya Zemlya effect consists of the trapping of light rays beneath a thermocline of large horizontal extent. Within the thermocline layers, the coefficient of refraction must exceed 1, while above and below it the coefficient must be less than 1. Then certain upward rays repeatedly bounce back from the thermocline and are transmitted for long distances around the earth�s curvature. The anomalous sunrise is a special case of this generalized definition. The properties of the Novaya Zemlya effect, analyzed using a laterally uniform stratified-atmosphere model, agree with those reported by polar expeditions. A narrow strip or window appears near the horizon, with or without an image of the sun in the window. An observation sketched by Liljequist in Antarctica is reconstructed to demonstrate the model�s accuracy.

    � 1979 Optical Society of America



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