mass of Arctic air is blowing in the eastern United States is considerably warm compared to -93 degrees below zero º C (136 º F) recorded in Antarctica in August 2010, according to a study published on Monday .
Scientists got this data after analyzing the global surface temperatures for 32 years with temperatures filed by satélites.Descubrieron in the higher latitudes of the Antarctic Plateau cores containing trapped air with temperatures descending up to -93 ° C on August 10, 2010, as the researchers said in the meeting of the American Geophysical Union held in San Francisco (USA).
previous record minimum temperature was in 1983, when he recorded -89.2 ° C (128’6 ° F) in the Antarctic by Russian Vostok Research Station, said Ted Scambos, the director of the National Snow and Information Ice Boulder (Colorado, USA).
“We suspect that this elevation of Antarctica would be extremely cold in all likelihood, more than Vostok, because it is a place that is higher up the hill,” Scambos said in their statements.
temperatures are about 50 ° F cooler than those recorded in Alaska or Siberia.
research
snow dunes were analyzed. Scientists noted the presence of cracks in the snow and wondered if the highest layer was shrinking. This led to a hunt for temperature data.
extremely low temperatures are due to trapped air for a while. If the sky is clear for a few days, the ground radiates heat into space, creating a layer of ultra cold air above the snow. “Enclosing the air for long periods of time, while radiating heat more and more space, you get the lowest temperatures we have been able to encontrar2 says Scambos.
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