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North-East Passage soon free from ice again

North-East Passage is viewed by shipping companies to be a time and fuel saving alternative The North-East Passage, the sea route along the North coast of Russia, is expected to be free of ice early again this summer. The forecast was made by sea ice physicists of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association based on a series of measurement flights over the Laptev Sea, a marginal sea of the Arctic Ocean.Amongs experts the shelf sea is known as an "ice factory" of Arctic sea ice. At the end of last winter the researchers discovered large areas of thin ice not being thick enough to withstand the summer melt."These results were a great surprise to us", says expedition member Dr. Thomas Krumpen. In previous measurements in the winter of 2007/2008 the ice in the same area had been up to one metre thicker. In his opinion these clear differences are primarily attributable to the wind: "It behaves differently from year to year.If, as last winter, the wind blows from the mainland to the sea, it pushes the pack ice from the Laptev Sea towards the North. Open water areas, so-called polynyas, develop in this ...

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