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article imageAntarctic Ice Mass Growing

By Gar Swaffar     Apr 18, 2009 in Environment
As opposed to the doom and gloom predictions of recent ice melt features in the western section of Antarctica, a recent study shows ice is thickening in Eastern Antarctica.
A study covering Eastern Antarctica shows continued growth in the ice mass of a region four times larger than the Western Antarctic area which is showing signs of ice reduction.
The head of the Australian glaciology program ,Antarctic Division, Dr. Ian Allison stated:
"Sea ice conditions have remained stable in Antarctica generally,"
Also mentioned was the difference in the size of the areas involved. One section of Eastern Antarctica is the Ross Sea region, which by itself has more than made up for the loss of ice in Western Antarctica.
The growing concern regarding ice shelves in Western Antarctica may be misplaced when the antarctic region as a whole is involved seems to be the idea Dr Allison is placing before the scientific community.
The melting of both fast ice and pack ice while it may be easy to note, has no net effect on the level of the worlds oceans since the ice is sitting in water already.
The concerns should center on ice shelves for predictions of sea rise. Ice shelves can affect the sea level only as they calve or break off or as they melt.
"The only significant calvings in Antarctica have been in the west," he said. And he cautioned that calvings of the magnitude seen recently in west Antarctica might not be unusual.
"Ice shelves in general have episodic carvings and there can be large icebergs breaking off - I'm talking 100km or 200km long - every 10 or 20 or 50 years."
Results of the study performed over decades shows an increase from 1.67 metres to 1.89 metres of Australia's Davis Station in East Antarctica.
That indicates a general cooling of the South Pole region.
variance happens
The first (variance) link shows actual ice cores from shallow ice core samples and the photos show widely varying annual ice/snow amounts. authors are: Kenneth C. McGWIRE,1 Joseph R. McCONNELL,1 Richard B. ALLEY,2 John R. BANTA,1
Geoffrey M. HARGREAVES,3 Kendrick C. TAYLOR1
The second link (happens) is from a research paper on: "The Polar Expression of ENSO and Sea-Ice
Variability as Recorded in a South Pole Ice Core" by Eric A. Meyerson*, Paul A. Mayewski, Karl J. Kreutz (Univ. of Maine) and L. David Meeker and Sallie I. Whitlow, Mark S. Twickler (Univ. of New Hampshire)
More about Antarctic ice, Australia, Ice growing
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