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Warming Oceans melt down Ice Quickly than Estimated
- By Ananth - Published: 07/04/2011
A new research recommends that ice sheets boiling in warmer ocean waters can be melted much quickly than anticipated. The study proposes that as oceans warmness increases they can slowly disintegrate the ice sheets quicker than warm air alone. This influence reasons for the climatic changes.
"Ocean warming is very important compared to atmospheric warming, because water has a much larger heat capacity than air," study researcher Jianjun Yin of the University of Arizona said in a statement. "If you put an ice cube in a warm room, it will melt in several hours. But if you put an ice cube in a cup of warm water, it will disappear in just minutes."
The researchers examined 19 state-of-the-art climate prototypes and noticed that subsurface ocean warming may quicken ice-sheet melting in the coming century, causing in increased sea level that could surpass 3 feet (1 meter).
However, the glaciers in Greenland and Antarctica are expected to liquefy at different rates.
Though the authentic warming in diverse areas could vary significantly, the researchers have identified that temperatures of subsurface oceans along the Greenland coast may upsurge as much as 3.6 degrees F (2 degrees C) by 2100. However, Antarctica would warm less, by a meager 0.9 degrees F (0.5 degrees C).
"No one has noticed this discrepancy before - that the subsurface oceans surrounding Greenland and Antarctica warm very differently," Yin said. The inconsistency is due to the diverse flows in the ocean: "The Gulf Stream will send warmer waters toward Greenland, while the Antarctic Circumpolar Current blocks some of the warmer waters from reaching Antarctica."
The steep rise in ocean warming will have considerable influence on how rapidly the polar ice sheets melt, as warmer waters will disintegrate the ice sheets underneath the surface.
For complete article, please click:
Warming Oceans Melt Down Ice
"Ocean warming is very important compared to atmospheric warming, because water has a much larger heat capacity than air," study researcher Jianjun Yin of the University of Arizona said in a statement. "If you put an ice cube in a warm room, it will melt in several hours. But if you put an ice cube in a cup of warm water, it will disappear in just minutes."
The researchers examined 19 state-of-the-art climate prototypes and noticed that subsurface ocean warming may quicken ice-sheet melting in the coming century, causing in increased sea level that could surpass 3 feet (1 meter).
However, the glaciers in Greenland and Antarctica are expected to liquefy at different rates.
Though the authentic warming in diverse areas could vary significantly, the researchers have identified that temperatures of subsurface oceans along the Greenland coast may upsurge as much as 3.6 degrees F (2 degrees C) by 2100. However, Antarctica would warm less, by a meager 0.9 degrees F (0.5 degrees C).
"No one has noticed this discrepancy before - that the subsurface oceans surrounding Greenland and Antarctica warm very differently," Yin said. The inconsistency is due to the diverse flows in the ocean: "The Gulf Stream will send warmer waters toward Greenland, while the Antarctic Circumpolar Current blocks some of the warmer waters from reaching Antarctica."
The steep rise in ocean warming will have considerable influence on how rapidly the polar ice sheets melt, as warmer waters will disintegrate the ice sheets underneath the surface.
For complete article, please click:
Warming Oceans Melt Down Ice
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