Abu Dhabi: Researchers in Abu Dhabi have unravelled a more than 40-year-old scientific mystery about why a body of unfrozen ocean has appeared within a thick body of ice during Antarctica’s winter. Known as a polynya event, this creation of the water bodies within ocean ice has occurred twice in the Weddell Sea in Antarctica — once in 1973 and again in 2017. Scientists at Khalifa University’s Environmental and Geophysical Sciences (ENGEOS) lab have discovered that synoptic-scale atmospheric rivers (AR) emerging from the tropics and spreading poleward into the Antarctic Ice Sheet are actually initiating this phenomenon. Anomalous increase in surface temperature was induced by the atmospheric
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