Monday, May 05, 2014

Yep. I just have a different drummer that I hear.

Everyone always worried about WAIS (West Antarctica Ice Sheet) because that is where all the ice shelves collapsed. The word in the figure to the left is 'commonly' occurring. Of course they were commonly occurring in WAIS because that is where the warmer oceans were meeting the ice.

Coastal Changes and Glaciological Map of Antarctica (click here)

Coastal Changes and Glaciological Map of the Palmer Island Area, Antarctica 1947-2009. (click here)

But, my worry was always the tall ice. The ice that was mountainous. The effected by hot air and heat transfer systems. Then the nighmares started when the ice terraces started to melt and disappear exposing the lower elevations of the tall ice. With the ice structures that support the tall ice gone, would the ice simply melt of would it topple. Here it is.

Chart Below (click here - Page Last Modified: Wednesday, 30-Apr-2014 13:34:17 EDT)

The question remains, (click here) will there be a tsunami to all the coastal continental areas when the tall ice starts to tumble?

East Antarctica may be particularly vulnerable to melting as the globe warms up. Photo: British Antarctic Survey

May 5, 2014 - 8:36AM

Part of East Antarctica (click here) is more vulnerable than expected to a thaw that could trigger an unstoppable slide of ice into the ocean and raise world sea levels for thousands of years, a new study showed.

The Wilkes Basin in East Antarctica, stretching more than 1,000 km inland, has enough ice to raise sea levels by 3 to 4 metres if it were to melt as an effect of global warming, the report said.

The Wilkes is vulnerable because it is held in place by a small rim of ice, resting on bedrock below sea level by the coast of the frozen continent. That "ice plug" might melt away in coming centuries if ocean waters warm up.
"East Antarctica's Wilkes Basin is like a bottle on a slant. Once uncorked, it empties out," Matthias Mengel of the Potsdam Institute for Climate Impact Research, lead author of the study in the journal Nature Climate Change, said in a statement.

Co-author Anders Levermann, also at Potsdam in Germany, told Reuters the main finding was that the ice flow would be irreversible, if set in motion. He said there was still time to limit warming to levels to keep the ice plug in place.

Almost 200 governments have promised to work out a U.N. deal by the end of 2015 to curb increasing emissions of man-made greenhouse gases that a U.N. panel says will cause more droughts, heatwaves, downpours and rising sea levels....