Russian Arctic rivers make fresh

Three Russian River, Lena, Ob and Yenisei, have led to a record number of fresh water in the Beaufort Sea. Frozen fresh water that flows into the Arctic Ocean from three mighty rivers, went for hundreds of miles to the other side of the ocean. This was due to long-term changes in atmospheric pressure associated with the phenomenon called the Arctic Oscillation.

New research suggests that low atmospheric pressure created by the Arctic Oscillation 2005-2008, became the cause of displacement of fresh river water from the Eurasian Basin in the Beaufort Sea, part of the Canada Basin. Amount of fresh water is very high in the central part of the Beaufort Sea fresh water could raise sea level by 3 meters.

To understand the global climate is very important to know the way of fresh water in the upper layer of the ocean. The fact that fresh water can create a barrier between the ice and warm ocean water. If the output of the Arctic will be too much fresh water, it starts to interfere with the interaction of cold water from the poles and warm water from the tropics.

Large-scale melting of sea ice in the Arctic in recent years, drew the attention of scientists on global climate change and changes in ocean circulation.

The results of observation satellites GRACE and ICESat, overall salinity of the Arctic Ocean has not changed, but the water Eurasian Basin has become more saline, while the Canada Basin is more bland.

In the Eurasian Basin reduced salinity can cause a more intensive melting ice. In the Beaufort Sea salinity decreased from 1990 and has already reached a record low for the 50-year period. A considerable part of fresh water came from Russian rivers, not as a result of melting ice.

Source: the-day-x.ru

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