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Seals solve icy mystery


Williams, GD, Seals solve icy mystery, Bruce Mounster, The Mercury Online, Hobart, Tasmania, February 26, 2013, Online (2013) [Newspaper Article]


SEALS wearing electronic hats on their foreheads have helped scientists to locate a missing Antarctic ice factory. Ice factories are expanses of extra-chilly shallow water close to the Antarctic continent, where most of the Southern Ocean's sea ice is produced. When seawater freezes, it leaves its salt behind. The dense salty water immediately slides down underneath the continental shelf, like an underwater river on its way to the deep ocean floor. Surface water rushes in to take its place. Antarctic Climate and Ecosystems Co-operative Research Centre sea ice specialist Guy Williams said the downward movement of salty water acted as a pump, that powered the ocean conveyor belt currents, which influenced the world's climate. Dr Williams said scientists were aware of three significant Antarctic ice factories and had long suspected a fourth.

Item Details

Item Type:Newspaper Article
Keywords:seals, bottom water, Antarctica
Research Division:Earth Sciences
Research Group:Physical geography and environmental geoscience
Research Field:Glaciology
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Understanding climate change
Objective Field:Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)
UTAS Author:Williams, GD (Associate Professor Guy Williams)
ID Code:88700
Year Published:2013
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2014-02-12
Last Modified:2014-02-12

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