Sources of heterogeneous variability and trends in Antarctic sea-ice
While the Northern Hemisphere sea-ice has uniformly declined over the past several decades, the observed sea-ice in the Southern Hemisphere has exhibited regions of increase and decrease. Here we use a comprehensive set of ocean-sea-ice simulations (1990-2007) to elucidate the drivers of the observe...
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Online Access: | https://doi.org/10.1038/ncomms9656 http://ecite.utas.edu.au/118776 |
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ftunivtasecite:oai:ecite.utas.edu.au:118776 2023-05-15T13:49:03+02:00 Sources of heterogeneous variability and trends in Antarctic sea-ice Matear, RJ O'Kane, TJ Risbey, JS Chamberlain, M 2015 application/pdf https://doi.org/10.1038/ncomms9656 http://ecite.utas.edu.au/118776 en eng Nature Publishing Group http://ecite.utas.edu.au/118776/1/Sources of heterogeneous variability.pdf http://dx.doi.org/10.1038/ncomms9656 Matear, RJ and O'Kane, TJ and Risbey, JS and Chamberlain, M, Sources of heterogeneous variability and trends in Antarctic sea-ice, Nature Communications, 6 Article 8656. ISSN 2041-1723 (2015) [Refereed Article] http://ecite.utas.edu.au/118776 Earth Sciences Atmospheric Sciences Climate Change Processes Refereed Article PeerReviewed 2015 ftunivtasecite https://doi.org/10.1038/ncomms9656 2019-12-13T22:18:03Z While the Northern Hemisphere sea-ice has uniformly declined over the past several decades, the observed sea-ice in the Southern Hemisphere has exhibited regions of increase and decrease. Here we use a comprehensive set of ocean-sea-ice simulations (1990-2007) to elucidate the drivers of the observed heterogeneous sea-ice trends. We show wind variability is an important determinant of the heterogeneous pattern of the variability and trends in Southern Hemisphere sea-ice. Only in the West Pacific region does Southern Annular Mode wind forcing contribute significantly to the trend in sea-ice duration. El Nio Southern Oscillation wind forcing contribution to the sea-ice duration trend is confined to the Atlantic and Pacific. In the Indian Ocean, weather is a significant driver of the sea-ice duration trend. Only in the East Pacific region is wind forcing alone insufficient to give rise to the observed sea-ice decline and must be augmented by warming to reproduce the observations. Article in Journal/Newspaper Antarc* Antarctic Sea ice eCite UTAS (University of Tasmania) Antarctic Pacific Indian Nature Communications 6 1 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
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English |
topic |
Earth Sciences Atmospheric Sciences Climate Change Processes |
spellingShingle |
Earth Sciences Atmospheric Sciences Climate Change Processes Matear, RJ O'Kane, TJ Risbey, JS Chamberlain, M Sources of heterogeneous variability and trends in Antarctic sea-ice |
topic_facet |
Earth Sciences Atmospheric Sciences Climate Change Processes |
description |
While the Northern Hemisphere sea-ice has uniformly declined over the past several decades, the observed sea-ice in the Southern Hemisphere has exhibited regions of increase and decrease. Here we use a comprehensive set of ocean-sea-ice simulations (1990-2007) to elucidate the drivers of the observed heterogeneous sea-ice trends. We show wind variability is an important determinant of the heterogeneous pattern of the variability and trends in Southern Hemisphere sea-ice. Only in the West Pacific region does Southern Annular Mode wind forcing contribute significantly to the trend in sea-ice duration. El Nio Southern Oscillation wind forcing contribution to the sea-ice duration trend is confined to the Atlantic and Pacific. In the Indian Ocean, weather is a significant driver of the sea-ice duration trend. Only in the East Pacific region is wind forcing alone insufficient to give rise to the observed sea-ice decline and must be augmented by warming to reproduce the observations. |
format |
Article in Journal/Newspaper |
author |
Matear, RJ O'Kane, TJ Risbey, JS Chamberlain, M |
author_facet |
Matear, RJ O'Kane, TJ Risbey, JS Chamberlain, M |
author_sort |
Matear, RJ |
title |
Sources of heterogeneous variability and trends in Antarctic sea-ice |
title_short |
Sources of heterogeneous variability and trends in Antarctic sea-ice |
title_full |
Sources of heterogeneous variability and trends in Antarctic sea-ice |
title_fullStr |
Sources of heterogeneous variability and trends in Antarctic sea-ice |
title_full_unstemmed |
Sources of heterogeneous variability and trends in Antarctic sea-ice |
title_sort |
sources of heterogeneous variability and trends in antarctic sea-ice |
publisher |
Nature Publishing Group |
publishDate |
2015 |
url |
https://doi.org/10.1038/ncomms9656 http://ecite.utas.edu.au/118776 |
geographic |
Antarctic Pacific Indian |
geographic_facet |
Antarctic Pacific Indian |
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Antarc* Antarctic Sea ice |
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Antarc* Antarctic Sea ice |
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http://ecite.utas.edu.au/118776/1/Sources of heterogeneous variability.pdf http://dx.doi.org/10.1038/ncomms9656 Matear, RJ and O'Kane, TJ and Risbey, JS and Chamberlain, M, Sources of heterogeneous variability and trends in Antarctic sea-ice, Nature Communications, 6 Article 8656. ISSN 2041-1723 (2015) [Refereed Article] http://ecite.utas.edu.au/118776 |
op_doi |
https://doi.org/10.1038/ncomms9656 |
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Nature Communications |
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6 |
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1 |
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1766250710979051520 |