Sentences with phrase «south temperature difference»
This matters because the north / south temperature difference is one of the main drivers of the jet stream.
http://www.globalpossibilities.org/ Not exact matches
The difference between ocean and air temperature also tends to create heavy morning fog during the summer months, known as the marine layer, driven by an onshore wind created by the local high pressure sunny portions of the Salinas Valley, which extend north and south from Salinas and the Bay.
It hardly takes imagination to posit that while initial aerosol dimming might depress temperatures, the aerosols and atmosphere might react in ways that change heat balance in other directions as they disperse, through stratospheric chemistry, and the fact that, unsurprisingly, there is a difference in aerosol behaviour depending on day vs night (you can't reduce the sunlight that reaches the south pole on June 23rd....).
Average July temperatures range from 2.4 °C to 3.6 °C on the south coast but notable differences in temperature occur with differences in terrain, and in the intermontane depressions, temperatures can reach 10 °C.
One hypothesis suggests that the shrinking temperature difference between the Arctic and the mid-latitudes will lead to a slowing of the jet stream, which circles the northern latitudes and normally keeps frigid polar air sharply separated from warmer air in the south.
In the past, a high difference in temperature from north to south helped drive a prevailing wind pattern called the Jet Stream which kept weather systems moving across the Northern Hemisphere.
The new twist in this story is that the Arctic has been warming at at least double the pace of the rest of the globe, meaning that the difference in temperature between the Arctic and areas farther south has been shrinking.
The temperature difference projected for the 30 % reduction in RGGI emission is equivalent to going south 159 feet.
But as the difference between north and south temperatures dropped, weather systems tended to stall.
The increase in average temperature between the nineteenth and twentieth centuries exceeded the temperature difference between all other consecutive centuries in each region, except Antarctica and South America.»
And since the temperature difference between the Arctic and the tropics is narrowing, and since it's the temperature difference that drives wind and ocean currents, then the jet stream that normally whizzes around the Arctic circle — thus keeping frozen air in one place and separating it from the warm breezes of the south — is, the theory goes, slowing, thus allowing warm moist air to penetrate into the north.
Since the Arctic is warming faster than the midlatitudes to the south, the temperature difference between these two regions is smaller.
The difference in temperature between the Arctic and areas to the south is what drives the jet stream, a fast - moving river of air that encircles the northern hemisphere.