Seals help solve deep water mystery
Elephant seals have helped scientists unravel a 30-year-old mystery around the sources of the ocean's deepest waters.In a paper published today in Nature Geoscience, scientists from Australia and Japan reveal a fourth source of Antarctic bottom water lying off Cape Darnley.Antarctic bottom wate...
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ftunivtasecite:oai:ecite.utas.edu.au:88697 2023-05-15T13:37:23+02:00 Seals help solve deep water mystery Williams, GD 2013 http://ecite.utas.edu.au/88697 en eng ABC Science Williams, GD, Seals help solve deep water mystery, News in Science, ABC Science, Australia, Monday, 25 February, Online (2013) [Newspaper Article] http://ecite.utas.edu.au/88697 Earth Sciences Physical Geography and Environmental Geoscience Glaciology Newspaper Article NonPeerReviewed 2013 ftunivtasecite 2019-12-13T21:52:17Z Elephant seals have helped scientists unravel a 30-year-old mystery around the sources of the ocean's deepest waters.In a paper published today in Nature Geoscience, scientists from Australia and Japan reveal a fourth source of Antarctic bottom water lying off Cape Darnley.Antarctic bottom water - cold, dense water that sits in the abyssal zone between 4000 metres and 6000 metres below the ocean's surface - plays a plays a key role in global water circulation and the transport of carbon dioxide to the deepest layers of the ocean.The discovery of a fourth source of deep water is critical to our understanding of Antarctica's contribution to global ocean circulation, and will improve modelling of its response to climate change, says study co-author Dr Guy Williams, of the Antarctic Climate and Ecosystem Co-operative Research Centre.Williams says the Cape Darnley deep water contributes about 10 per cent of volume to the Antarctic bottom water.The discovery of a fourth source is like "finding a new component in the engine," he says.Until recently only three sources of the deep waters were known - the Weddell and Ross seas and off the Adelie Coast.But in 1977 a US study uncovered bottom water with high oxygen levels in the Weddell-Enderby Basin off shore of Antarctica's Mac Robertson Land."That was the smoking gun - it was a signal that this water had recently been near the surface [of the ocean] and had somehow been converted into this dense, deep ocean water," says Williams. Article in Journal/Newspaper Antarc* Antarctic Elephant Seals Mac Robertson Land Mac. Robertson Land eCite UTAS (University of Tasmania) Antarctic Cape Darnley ENVELOPE(69.567,69.567,-67.738,-67.738) Darnley ENVELOPE(69.717,69.717,-67.717,-67.717) Mac. Robertson Land ENVELOPE(65.000,65.000,-70.000,-70.000) The Antarctic Weddell |
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eCite UTAS (University of Tasmania) |
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English |
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Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
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Earth Sciences Physical Geography and Environmental Geoscience Glaciology Williams, GD Seals help solve deep water mystery |
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Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
description |
Elephant seals have helped scientists unravel a 30-year-old mystery around the sources of the ocean's deepest waters.In a paper published today in Nature Geoscience, scientists from Australia and Japan reveal a fourth source of Antarctic bottom water lying off Cape Darnley.Antarctic bottom water - cold, dense water that sits in the abyssal zone between 4000 metres and 6000 metres below the ocean's surface - plays a plays a key role in global water circulation and the transport of carbon dioxide to the deepest layers of the ocean.The discovery of a fourth source of deep water is critical to our understanding of Antarctica's contribution to global ocean circulation, and will improve modelling of its response to climate change, says study co-author Dr Guy Williams, of the Antarctic Climate and Ecosystem Co-operative Research Centre.Williams says the Cape Darnley deep water contributes about 10 per cent of volume to the Antarctic bottom water.The discovery of a fourth source is like "finding a new component in the engine," he says.Until recently only three sources of the deep waters were known - the Weddell and Ross seas and off the Adelie Coast.But in 1977 a US study uncovered bottom water with high oxygen levels in the Weddell-Enderby Basin off shore of Antarctica's Mac Robertson Land."That was the smoking gun - it was a signal that this water had recently been near the surface [of the ocean] and had somehow been converted into this dense, deep ocean water," says Williams. |
format |
Article in Journal/Newspaper |
author |
Williams, GD |
author_facet |
Williams, GD |
author_sort |
Williams, GD |
title |
Seals help solve deep water mystery |
title_short |
Seals help solve deep water mystery |
title_full |
Seals help solve deep water mystery |
title_fullStr |
Seals help solve deep water mystery |
title_full_unstemmed |
Seals help solve deep water mystery |
title_sort |
seals help solve deep water mystery |
publisher |
ABC Science |
publishDate |
2013 |
url |
http://ecite.utas.edu.au/88697 |
long_lat |
ENVELOPE(69.567,69.567,-67.738,-67.738) ENVELOPE(69.717,69.717,-67.717,-67.717) ENVELOPE(65.000,65.000,-70.000,-70.000) |
geographic |
Antarctic Cape Darnley Darnley Mac. Robertson Land The Antarctic Weddell |
geographic_facet |
Antarctic Cape Darnley Darnley Mac. Robertson Land The Antarctic Weddell |
genre |
Antarc* Antarctic Elephant Seals Mac Robertson Land Mac. Robertson Land |
genre_facet |
Antarc* Antarctic Elephant Seals Mac Robertson Land Mac. Robertson Land |
op_relation |
Williams, GD, Seals help solve deep water mystery, News in Science, ABC Science, Australia, Monday, 25 February, Online (2013) [Newspaper Article] http://ecite.utas.edu.au/88697 |
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1766091058484084736 |