Arctic temperatures.

Discussion in 'Environment' started by Old Rocks, Jan 26, 2010.

  1. Old Rocks
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    Old Rocks Diamond Member

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    Intereresting to see how this is going to play out. In the meantime, temperatures over central Greenland have been as much as 20 F above normal. And the area of the Arctic Ice is taking a nosedive. Winds?
    Arctic Sea Ice News & Analysis


    Unusual Arctic warmth as north hemisphere shivers | Reuters

    WASHINGTON (Reuters) - While much of the Northern Hemisphere has shivered in a cold snap in recent weeks, temperatures in the Arctic soared to unusually high levels, U.S. scientists reported.

    Green Business

    This strange atmospheric pattern is caused by natural variability and not by rising levels of greenhouse gases. However, it could affect Arctic ice which in turn may impact global warming, said Mark Serreze, director of the U.S. National Snow and Ice Data Center in Colorado.

    "It's very warm over the Arctic, with air temperatures locally at 10 to 15 degrees F (5.6 to 8.4 degrees C) warmer than they should be in certain areas," Serreze said in a telephone interview on Monday.

    This contrasts with record or near-record cold over much of the eastern United States and Canada, Europe and Asia for the last two weeks of December and the first days of January, the data center reported.

    It's due to a large area of high pressure over the Arctic, and a big area of low pressure at the mid-latitudes, where much of the Northern Hemisphere's population is concentrated.

    Usually these areas of differing air pressure would shift and mix in a phenomenon known as the Arctic oscillation. Instead, they've remained stationary in what scientists term a negative phase of the oscillation. A positive phase would have low pressure over the Arctic and high pressure over the mid-latitudes.

    Serreze said that as of December, the oscillation was in the most extreme negative phase seen since modern record-keeping began in 1950.

    "Normally the circulation of the atmosphere would mix these two (areas of varying air pressure) together, and it's not doing a very good job of that right now, so we have these blobs of warm air over the Arctic and these blobs of cold air over the mid-latitudes, just sitting there," he said.

    The blobs appear to be starting to shift, a sign that the negative phase is weakening.
     
  2. Chris
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    Chris Gold Member

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    We just had a foot of snow.

    God is punishing us for Pat Robertson's "pact with the devil."
     
  3. waltky
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    waltky Wise ol' monkey Supporting Member

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    Granny wantin' to know, "Den how come dat polar vortex is freezin' our butts off?...
    [​IMG]
    Arctic warming hits overdrive, at twice the global pace
    Thu, Dec 15, 2016 - Warming at the top of the world has gone into overdrive, happening twice as fast as the rest of the globe and extending unnatural heating into fall and winter, according to a new US federal report.
     
  4. waltky
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    waltky Wise ol' monkey Supporting Member

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    Uncle Ferd says it's due to a split jet stream...
    [​IMG]
    'Unprecedented' Jet Stream Pushing Warm Air Into Arctic
    February 08, 2017 - For the second consecutive year, the northern reaches of the planet are experiencing unprecedented waves of warm air. And climate researchers say they've never seen anything like it.

     
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  5. Billy_Bob
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    Billy_Bob Platinum Member

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    TO Funny;

    "The breakdown of methane hydrates due to warming climate is unlikely to lead to massive amounts of methane being released to the atmosphere, according to a recent interpretive review of scientific literature performed by the U.S. Geological Survey and the University of Rochester."

    I guess goldierocks will need a new meme now that the USGS has declared the methane emergency "not so much of an emergency"..

    Good news: Methane hydrate breakdown unlikely to cause massive greenhouse gas release
     
  6. Crick
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    Crick Gold Member

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    The only thing that study concludes should be ruled out is a catastrophic release in the near future.
     
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  7. SSDD
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    SSDD Gold Member

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    As if you could get anything from the study...hell crick...you can't even identify a simple graphic depicting the mechanism of the greenhouse effect as described by climate science.
     
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  8. CrusaderFrank
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    CrusaderFrank Diamond Member

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    ^ Fake News

    Kotelnly -8
    Alert -18

    Well you get the idea
     
  9. Crick
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    Crick Gold Member

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    What evidence do you have that was "fake news"?
     
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  10. Old Rocks
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    Old Rocks Diamond Member

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    Arctic
    Temperatures in the Arctic are skyrocketing — for the third time this winter
    • Author: Chelsea Harvey, The Washington Post
    • Updated: 3 hours ago
    • Published 3 hours ago
    [​IMG]

    While much of the Northeast was forced to batten down the hatches this week against strong winds, heavy snow and other icy conditions, the usually frigid Arctic experienced the opposite – a period of unseasonably mild weather and high temperatures, for at least the third time this winter.

    A powerful low-pressure storm system in the northern Atlantic has helped carry warm air up to the frozen north this week, sending temperatures in the Arctic soaring. Data from the Danish Meteorological Institute suggests that, as of Thursday, temperatures in the area above 80 degrees north latitude were already more than 20 degrees warmer than the average temperature for this time of year. As a graphic from Climate Reanalyzer shows, the most unusually warm region is right over the North Pole.

    It's at least the third such extreme winter-warming event for the Arctic this season – temperatures skyrocketed on two occasions in November and December as well. Similar incidents also occurred in December of 2015 and 2014.

    [Report: 2016 was Earth's hottest year on record by a wide margin, especially in Arctic]

    Scientists believe that a number of different factors are feeding into these warming events, including the steady march of climate change and interactions between the air and Arctic sea ice, which global warming is melting a little more each year. And a good low-pressure system, like the one that barreled through this week, can help to jump-start these kinds of sudden warming events by carrying a large amount of warm air up to the North Pole all at once.
    Temperatures in the Arctic are skyrocketing — for the third time this winter

    Looks like a very warm arctic right now.
     

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