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Total Arctic sea ice at record low in 2010-study
Source: Agencies |
September 6, 2011, Tuesday
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Online Edition
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THE minimum summertime volume of Arctic sea ice fell to a record low last year, researchers said in a study to be published shortly, suggesting that thinning of the ice had outweighed a recovery in area.
The study estimated that last year broke the previous, 2007 record for the minimum volume of ice, which is calculated from a combination of sea ice area and thickness.
The research adds to a picture of rapid climate change at the top of the world that could see the Arctic Ocean ice-free within decades, spurring new oil exploration opportunities but possibly also disrupted weather patterns far a field and a faster rise in sea levels.
The authors developed a model predicting thickness across the Arctic Ocean based on actual observations of winds, air and ocean temperatures.
"The real worrisome fact is downward trend over the last 32 years," said Axel Schweiger, lead author of the paper, referring to a satellite record of changes in the Arctic.
The study estimated that last year broke the previous, 2007 record for the minimum volume of ice, which is calculated from a combination of sea ice area and thickness.
The research adds to a picture of rapid climate change at the top of the world that could see the Arctic Ocean ice-free within decades, spurring new oil exploration opportunities but possibly also disrupted weather patterns far a field and a faster rise in sea levels.
The authors developed a model predicting thickness across the Arctic Ocean based on actual observations of winds, air and ocean temperatures.
"The real worrisome fact is downward trend over the last 32 years," said Axel Schweiger, lead author of the paper, referring to a satellite record of changes in the Arctic.
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