Last year was one of the warmest in the northern hemisphere

Last won in 2012, according to preliminary data, the sixth warmest year in the Northern Hemisphere on record, told RIA Novosti the Hydrometeorological Center of Russia.

"These data will be more refined, but at the moment we can say that 2012 was between 1998 and 2003, that is in sixth place among the warmest years in the Northern Hemisphere on record — in 1891," — said the interlocutor agency.

The warmest in this rating is 2010, followed by 2005, 2007, 2006, 1998. 2011 in this list is the tenth, but now he was on the 11th.

According to meteorologists, the largest temperature anomalies were recorded in the Arctic. Here, the average annual air temperature exceeded the norm by 4-7 degrees, and in the north of the Kara Sea between the archipelagos of Franz Josef Land and Severnaya Zemlya — by more than 7 degrees.

"Never before in the Northern Hemisphere mean annual air temperature anomalies of more than 5 degrees were not observed", — the report says meteorologist.

Such high temperatures contributed to the rapid melting of the ice shell, and in September 2012 was registered the absolute minimum area of the Arctic Ocean covered by ice.

In the Arctic in 2012 was the second warmest in history of meteorological observations, second only to 2011, which in this region was 0.2 degrees warmer.

Record warm 2012 was in North America. In the U.S. and Canada, the average air temperature anomalies for the year were higher than the norm by 2-3 degrees or more. For the U.S. this year was the warmest in history.

"In Russia, the average annual temperature was 6.7 grade. It's smaller than last year, about 0.5 degrees and almost 1 degree gives very warm weather in the annals in 2007," — said the weather center.

Colder than usual in 2012, was a significant part of the Pacific Ocean and Alaska, where a cold year last seen in the 1970s.

The air temperature is below normal also took place in some tropical latitudes of the Atlantic and Indian Oceans, in southern Siberia, Mongolia, northern China and north-east Kazakhstan, although only slightly — by no more than 0.5 degrees.

"It is possible that the reason for this continental regions become very cold December. Its average temperature in the region was at 10.8 degrees below normal," — said the weather service.

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