The change of the wind rose in the northern hemisphere has become one of the main reasons that the area of sea ice in the Arctic has reached This summer, record low values, according to the Internet portal LiveScience, citing a study published in a journal Geophysical Research Letters. 
Photo from open sources Photo: lifeglobe.net By August of this of the year, according to the National Snow and Ice Data Center (NSIDC) USA, Arctic sea ice area for all history of observations fell below the record low recorded in 2007, amounting to 4.1 million square kilometers (the lowest value since 1979, when regular satellite measurements began ice area – ed.). “Our study showed a change in circuit. air circulation and wind rose over the Arctic over the past six years. Using physical models, we calculated that there is a line the connection between this phenomenon and the record melting of sea ice in Arctic, as well as melting glaciers of Greenland and abnormal weather in North America and Europe, “said research author National Oceanic and Atmospheric Administration US Studies (NOAA) James Overland, whose words are given in the message. Scientists led by Overland compared the wind rose over the Arctic for the first half of summer for 1981-2010 and 2007-2012. It turned out that until 2007 wind at this time of year blew from west to east, crossing the North Arctic Ocean. However, since 2008 another air flow coming from the south. It carries warmer air which causes the ice to melt and drives them further north, in Central Arctic. According to experts, such innovations in pattern of atmospheric circulation over the polar region caused by a change atmospheric pressure distributions over the North Atlantic, whose reasons, in turn, are not yet clear to scientists.
Arctic USA
