Sentences with phrase «like polar lows»

Offshore winds from Canada and Greenland (with temperatures around -20 C) carry across the warm waters of the Labrador Sea, creating a very unstable atmosphere and immediately leading to the formation of depressions (like polar lows).

Not exact matches

And when you get a polar vortex disruption, warm air from the lower latitudes rushes in to the Arctic, and you can get extreme warm events like we saw in February.

[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)

About the only significant even in the last month is that the solar polar fields have begun their reversal, indicating we are at «solar max», which seems like a misnomer given the low activity observed at the moment.

It's like arguing that because we hit in 2005 a low we expected as a new normal in 2060, polar bears should already be disappearing, but worse.

The figures for November — month number 11 — have just come in and it looks like the U.S. is once again betraying the cause: November 2014 with its polar vortex saw almost 9000 record lows, ushering in a record extent of snow cover for North America.

From satellite imagery, polar lows can look much like a hurricane, with a large spiral of clouds centered around an eye — for this reason they are sometimes called Arctic hurricanes.

Hi iceman, Sorry for the tardy reply, that pesky real life thing again...:) The reason there is so little excitement about the record high sea ice extent in the antarctic (aside from it having no appealing potential victims, like polar bears) versus the record low arctic sea ice is probably because the southern record is only a matter of 2 % anamoly, whereas in the north we are now looking at levels over 40 % below average.