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Antarctic ice sheds light on big dry

Citation

Vance, TR, Antarctic ice sheds light on big dry, The Australian - Matthew Denholm, The Australian, Online, August 30, 2012, Online (2012) [Newspaper Article]

Abstract

EASTERN Australia is experiencing its driest period since the Middle Ages, according to a study that overturns the nation's understanding of average rainfall. Scientists at the Antarctic Climate and Ecosystems Co-operative Research Centre have used ice cores, drilled into the east Antarctic ice, to provide a record of the climate during the past 1000 years. The core samples reveal the level of sea salt blown on to the ice for 1000 summers is linked, like rainfall in eastern Australia, to the predominance of El Nino or La Nina weather events. In the past 100 years, the data shows a direct correlation between lower salt in the ice, due to reduced winds in the Southern Ocean in El Nino years, and recorded periods of lower rainfall in eastern Australia. "We weren't expecting such a strong correlation between the two areas this far apart," said glaciologist Tessa Vance.

Item Details

Item Type:Newspaper Article
Keywords:rainfall, east Antarctic ice, ice cores
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Glaciology
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Effects of Climate Change and Variability on Australia (excl. Social Impacts)
Author:Vance, TR (Dr Tessa Vance)
ID Code:91001
Year Published:2012
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2014-05-06
Last Modified:2014-05-06
Downloads:0

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