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September 27th 14, 04:54 PM
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More extreme weather at UK latitudes traced to Arctic's impacton jet stream
On 27/09/2014 15:52, Dawlish wrote:
New research backs UKMO's ideas and the theories of others, but, as always in science, nothing is certain (Gavin Schmidt). "The Arctic is warming twice as fast as the rest of the planet, an effect enhanced when the sea ice that normally cools the Arctic air melts away. Because of this, the air currents that come from that region are getting disproportionately warmer too, narrowing the temperature difference between the Arctic and southerly winds, and thereby weakening the jet stream itself. "The winds have weakened by 10 per cent over the past three decades in the west-to-east wind of the jet stream," http://www.newscientist.com/article/...l#.VCbNar40Pwx The winds certainly didn't weaken last winter !! -- Keith (Southend) "Weather Home & Abroad" http://www.southendweather.net Twitter:@LawnscienceEssx |
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