Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales
Recent changes in the strength and location of the Southern Hemisphere westerly winds (SHW) have been linked to continental droughts and wildfires, changes in the Southern Ocean carbon sink, sea ice extent, ocean circulation, and ice shelf stability. Despite their critical role, our ability to predi...
Published in: | Communications Earth & Environment |
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Language: | English |
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2020
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Online Access: | https://www.vliz.be/imisdocs/publications/380127.pdf |
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ftvliz:oai:oma.vliz.be:354207 2023-05-15T13:42:51+02:00 Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales Perren, B.B. Hodgson, D.A. Roberts, S.J. Sime, L. Van Nieuwenhuyze, W. Verleyen, E. Vyverman, W. 2020 application/pdf https://www.vliz.be/imisdocs/publications/380127.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000693644700001 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1038/s43247-020-00059-6 https://www.vliz.be/imisdocs/publications/380127.pdf info:eu-repo/semantics/openAccess %3Ci%3ECommun.+Earth+Environ.+1%281%29%3C%2Fi%3E%3A+58.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1038%2Fs43247-020-00059-6%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1038%2Fs43247-020-00059-6%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftvliz https://doi.org/10.1038/s43247-020-00059-6 2022-08-03T22:23:43Z Recent changes in the strength and location of the Southern Hemisphere westerly winds (SHW) have been linked to continental droughts and wildfires, changes in the Southern Ocean carbon sink, sea ice extent, ocean circulation, and ice shelf stability. Despite their critical role, our ability to predict their impacts under future climates is limited by a lack of data on SHW behaviour over centennial timescales. Here, we present a 700-year record of changes in SHW intensity from sub-Antarctic Marion Island using diatom and geochemical proxies and compare it with paleoclimate records and recent instrumental data. During cool periods, such as the Little Ice Age (c. 1400–1870 CE), the winds weakened and shifted towards the equator, and during warm periods they intensified and migrated poleward. These results imply that changes in the latitudinal temperature gradient drive century-scale SHW migrations, and that intensification of impacts can be anticipated in the coming century. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Marion Island Sea ice Southern Ocean Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Southern Ocean Communications Earth & Environment 1 1 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
Recent changes in the strength and location of the Southern Hemisphere westerly winds (SHW) have been linked to continental droughts and wildfires, changes in the Southern Ocean carbon sink, sea ice extent, ocean circulation, and ice shelf stability. Despite their critical role, our ability to predict their impacts under future climates is limited by a lack of data on SHW behaviour over centennial timescales. Here, we present a 700-year record of changes in SHW intensity from sub-Antarctic Marion Island using diatom and geochemical proxies and compare it with paleoclimate records and recent instrumental data. During cool periods, such as the Little Ice Age (c. 1400–1870 CE), the winds weakened and shifted towards the equator, and during warm periods they intensified and migrated poleward. These results imply that changes in the latitudinal temperature gradient drive century-scale SHW migrations, and that intensification of impacts can be anticipated in the coming century. |
format |
Article in Journal/Newspaper |
author |
Perren, B.B. Hodgson, D.A. Roberts, S.J. Sime, L. Van Nieuwenhuyze, W. Verleyen, E. Vyverman, W. |
spellingShingle |
Perren, B.B. Hodgson, D.A. Roberts, S.J. Sime, L. Van Nieuwenhuyze, W. Verleyen, E. Vyverman, W. Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales |
author_facet |
Perren, B.B. Hodgson, D.A. Roberts, S.J. Sime, L. Van Nieuwenhuyze, W. Verleyen, E. Vyverman, W. |
author_sort |
Perren, B.B. |
title |
Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales |
title_short |
Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales |
title_full |
Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales |
title_fullStr |
Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales |
title_full_unstemmed |
Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales |
title_sort |
southward migration of the southern hemisphere westerly winds corresponds with warming climate over centennial timescales |
publishDate |
2020 |
url |
https://www.vliz.be/imisdocs/publications/380127.pdf |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Ice Shelf Marion Island Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Ice Shelf Marion Island Sea ice Southern Ocean |
op_source |
%3Ci%3ECommun.+Earth+Environ.+1%281%29%3C%2Fi%3E%3A+58.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1038%2Fs43247-020-00059-6%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1038%2Fs43247-020-00059-6%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000693644700001 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1038/s43247-020-00059-6 https://www.vliz.be/imisdocs/publications/380127.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s43247-020-00059-6 |
container_title |
Communications Earth & Environment |
container_volume |
1 |
container_issue |
1 |
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1766173425405001728 |