In other words, it is the flow of winds at high latitudes, such that this system, which flows around the Earth, leads to the appearance of equal, closed lines in the form of roughly concentric circles, which appear as a vortex when viewed by an observer looking at it from directly above the North Pole.Ī simpler, more general term for the polar vortex may be used, the Polar Front, as the polar front ideally separates cooler Arctic air from the milder subtropical air in the mid-latitudes. The Polar Vortex is a low-pressure system located almost permanently just above the North Pole, a large region of cool, swirling air that surrounds both polar regions. The fluctuation of the polar vortex is the main driver of the greatest cold waves affecting the United States and Europe, so what is a polar vortex? And how did it contribute to the occurrence of the last ice age?
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