The circulation carries warm Atlantic water from the tropics to the north, where it cools and descends to create a dense layer of cold water. As a result, sea level is currently about 71 centimeters (28 inches) lower in the North Atlantic than the North Pacific, which lacks such a dense layer.
If the melting of the Greenland Ice Sheet were to increase by 3 percent or 7 percent yearly, the additional fresh water could partially disrupt the northward conveyor belt.
This would reduce the accumulation of deep, dense water. Instead, the deep water would be slightly warmer, expanding and elevating the surface across portions of the north Atlantic.
"The oceans will not rise uniformly as the world warms," says NCAR scientist Gerald Meehl, a co-author of the paper. "Ocean dynamics will push water in certain directions, so some locations will experience sea level rise that is larger than the global average."


Barry of CA @ Jun 05, 2009 16:24:21 PM
merville cratte @ Jun 01, 2009 11:31:06 AM
Owl of CO @ May 30, 2009 22:30:19 PM