Long-distance atmospheric connections between the North and South poles are linking weather and climate in distant parts of the globe, according to data from a NASA spacecraft. These so-called "teleconnections" explain why the winter air temperature in Indianapolis, Ind., during the so-called polar vortex correlated with a reduction in high-altitude clouds over Antarctica, thousands of miles away, researchers say. "Changes in the polar regions in the North were 'communicated' all the way over to the other side of the globe," said Cora Randall, an atmospheric scientist at the University of Colorado, Boulder and a member of the Aeronomy of Ice in the Mesosphere (AIM) spacecraft's science team. Winds in the Northern Hemisphere's stratosphere, the second layer of the Earth's atmosphere, were affecting the Southern Hemisphere mesosphere, the layer above the stratosphere, a few weeks later.
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