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Jet stream changing.


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Posted
  • Location: South Shields Tyne & Wear half mile from the coast.
  • Location: South Shields Tyne & Wear half mile from the coast.

    Interesting article from Carnegie Institute for science yesterday.

    http://www.ciw.edu/news/changing_jet_strea..._and_hurricanes

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    Posted
  • Location: Napton on the Hill Warwickshire 500ft
  • Weather Preferences: Snow and heatwave
  • Location: Napton on the Hill Warwickshire 500ft
    Interesting article from Carnegie Institute for science yesterday.

    http://www.ciw.edu/news/changing_jet_strea..._and_hurricanes

    A 2008 article that mentions data from 2001 ??

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    23-year span from 1979 to 2001 the jet streams in both hemispheres have risen in altitude and shifted toward the poles.

    --------------

    Thats niether recent nor relevant so I stop reading after the 5th line

    Wonder if its a global warming site bring up old news ?

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    Posted
  • Location: Liphook
  • Location: Liphook

    Yeah and also note that 12 miles per decade is hardly ground-breaking stuff to be fair.

    I suppose if we apply logic then it makes sense that the jet should slow in a warmer world simply because the thermal gradient between the tropics and the poles are reduced but it doesn't always work out logically does it!

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    Posted
  • Location: Mytholmroyd, West Yorks.......
  • Weather Preferences: Hot & Sunny, Cold & Snowy
  • Location: Mytholmroyd, West Yorks.......
    Yeah and also note that 12 miles per decade is hardly ground-breaking stuff to be fair.

    I suppose if we apply logic then it makes sense that the jet should slow in a warmer world simply because the thermal gradient between the tropics and the poles are reduced but it doesn't always work out logically does it!

    so how heavy is this straw then?

    All these teensy weensy things KW? how many thumps do you think mother N. will absorb before she postures back at us in her own sweet way??

    If it's all down to slow data feeds and endless waiting on the revaluations that retrospect can gorge us with then you may well wish to wait upon that future data K.W. !!!.....

    Most of what we hear seems to be no more to us than a confirmation of common sense,........and all in the same ominous direction.

    How much more of these endless 'facts' does even the most skeptically need to be subjected to before accepting our part of the mess we, humanity, find ourselves in.

    Is it right to carry on B.A.U. if we harbour the slightest doubt as to the impact of our past present and future efforts???

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    Posted
  • Location: City of Gales, New Zealand, 150m ASL
  • Location: City of Gales, New Zealand, 150m ASL
    A 2008 article that mentions data from 2001 ??

    Thats niether recent nor relevant so I stop reading after the 5th line

    Your second comment is overly harsh, it is very common in science for data like this to be *fairly* old.

    Yeah and also note that 12 miles per decade is hardly ground-breaking stuff to be fair.

    I suppose if we apply logic then it makes sense that the jet should slow in a warmer world simply because the thermal gradient between the tropics and the poles are reduced but it doesn't always work out logically does it!

    The warming is mostly at the surface though. This may decrease wind shear at low levels, but does the warming actually filter up to higher levels so that it influence jet streams?

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