Air warming due to climate change is not the only factor that will accelerate the melting of ice near the poles. A study revealed that the sea water under a thick layer of ice was also warmed up and played a role in the incident.
So far, global warming blamed for increasing number of Greenland and Antarctic ice melt, as well as potentially increase the sea level. But only a little attention to the impacts of warming the water beneath the ice iapisan.
Jianjun Yin, researcher of the University of Arizona, and his team reported that the warming of the water certainly accelerate the melting of polar ice than the previous calculation.
The melting of floating ice will not increase sea level. In contrast to the ice flowing from the glaciers into the sea and melting because the warm water around it. Melting of land ice adds water to the sea.
"Warm ocean is very important compared to the warming of the atmosphere because water has a greater heat capacity than air," said Yin. "If you put a piece of ice in the room is hot, ice will melt within a few hours. But, if you put ice in a cup of hot water, ice will disappear in just a few minutes."
Yin explained that if the floating ice melts along the coastal regions, glaciers flowed faster into the sea. That will bring a lot of ice into the sea.
The report strengthens the evidence that sea levels will increase in height at the end of this century about 1 meter high and will increase again in the coming centuries. In 2100, the water in the ocean along the coast sub-surface estimated Greenland warmed about 2 degrees Celsius. Scientists calculate the warming in the Antarctic coast a little below that figure, namely 0.5 degrees Celsius .*** [AP|KORAN TEMPO 3582]
Thursday, July 7, 2011
Ocean warms, more ice melting fast
Air warming due to climate change is not the only factor that will accelerate the melting of ice near the poles. A study revealed that the sea water under a thick layer of ice was also warmed up and played a role in the incident.
So far, global warming blamed for increasing number of Greenland and Antarctic ice melt, as well as potentially increase the sea level. But only a little attention to the impacts of warming the water beneath the ice iapisan.
Jianjun Yin, researcher of the University of Arizona, and his team reported that the warming of the water certainly accelerate the melting of polar ice than the previous calculation.
The melting of floating ice will not increase sea level. In contrast to the ice flowing from the glaciers into the sea and melting because the warm water around it. Melting of land ice adds water to the sea.
"Warm ocean is very important compared to the warming of the atmosphere because water has a greater heat capacity than air," said Yin. "If you put a piece of ice in the room is hot, ice will melt within a few hours. But, if you put ice in a cup of hot water, ice will disappear in just a few minutes."
Yin explained that if the floating ice melts along the coastal regions, glaciers flowed faster into the sea. That will bring a lot of ice into the sea.
The report strengthens the evidence that sea levels will increase in height at the end of this century about 1 meter high and will increase again in the coming centuries. In 2100, the water in the ocean along the coast sub-surface estimated Greenland warmed about 2 degrees Celsius. Scientists calculate the warming in the Antarctic coast a little below that figure, namely 0.5 degrees Celsius .*** [AP|KORAN TEMPO 3582]
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