Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea
Several processes have been hypothesized to explain the slight overall expansion of Antarctic sea ice over the satellite observation era, including externally forced changes in local winds or in the Southern Ocean’s hydrological cycle, as well as internal climate variability. Here, we show the criti...
Published in: | Nature Communications |
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Online Access: | https://www.vliz.be/imisdocs/publications/305969.pdf |
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ftvliz:oai:oma.vliz.be:288952 2023-05-15T13:54:11+02:00 Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea Lecomte, O. Goosse, H. Fichefet, T. de Lavergne, C. Barthélemy, A. Zunz, V. 2017 application/pdf https://www.vliz.be/imisdocs/publications/305969.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000407553800016 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1038/s41467-017-00347-4 https://www.vliz.be/imisdocs/publications/305969.pdf info:eu-repo/semantics/openAccess %3Ci%3ENature+Comm.+8%281%29%3C%2Fi%3E%3A+8+pp.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1038%2Fs41467-017-00347-4%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1038%2Fs41467-017-00347-4%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftvliz https://doi.org/10.1038/s41467-017-00347-4 2022-05-01T10:54:27Z Several processes have been hypothesized to explain the slight overall expansion of Antarctic sea ice over the satellite observation era, including externally forced changes in local winds or in the Southern Ocean’s hydrological cycle, as well as internal climate variability. Here, we show the critical influence of an ocean–sea-ice feedback. Once initiated by an external perturbation, it may be sufficient to sustain the observed sea-ice expansion in the Ross Sea, the region with the largest and most significant expansion. We quantify the heat trapped at the base of the ocean mixed layer and demonstrate that it is of the same order of magnitude as the latent heat storage due to the long-term changes in sea-ice volume. The evidence thus suggests that the recent ice coverage increase in the Ross Sea could have been achieved through a reorganization of energy within the near-surface ice-ocean system. Article in Journal/Newspaper Antarc* Antarctic Ross Sea Sea ice Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Ross Sea Nature Communications 8 1 |
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Open Polar |
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Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
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ftvliz |
language |
English |
description |
Several processes have been hypothesized to explain the slight overall expansion of Antarctic sea ice over the satellite observation era, including externally forced changes in local winds or in the Southern Ocean’s hydrological cycle, as well as internal climate variability. Here, we show the critical influence of an ocean–sea-ice feedback. Once initiated by an external perturbation, it may be sufficient to sustain the observed sea-ice expansion in the Ross Sea, the region with the largest and most significant expansion. We quantify the heat trapped at the base of the ocean mixed layer and demonstrate that it is of the same order of magnitude as the latent heat storage due to the long-term changes in sea-ice volume. The evidence thus suggests that the recent ice coverage increase in the Ross Sea could have been achieved through a reorganization of energy within the near-surface ice-ocean system. |
format |
Article in Journal/Newspaper |
author |
Lecomte, O. Goosse, H. Fichefet, T. de Lavergne, C. Barthélemy, A. Zunz, V. |
spellingShingle |
Lecomte, O. Goosse, H. Fichefet, T. de Lavergne, C. Barthélemy, A. Zunz, V. Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea |
author_facet |
Lecomte, O. Goosse, H. Fichefet, T. de Lavergne, C. Barthélemy, A. Zunz, V. |
author_sort |
Lecomte, O. |
title |
Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea |
title_short |
Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea |
title_full |
Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea |
title_fullStr |
Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea |
title_full_unstemmed |
Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea |
title_sort |
vertical ocean heat redistribution sustaining sea-ice concentration trends in the ross sea |
publishDate |
2017 |
url |
https://www.vliz.be/imisdocs/publications/305969.pdf |
geographic |
Antarctic Ross Sea |
geographic_facet |
Antarctic Ross Sea |
genre |
Antarc* Antarctic Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Ross Sea Sea ice |
op_source |
%3Ci%3ENature+Comm.+8%281%29%3C%2Fi%3E%3A+8+pp.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1038%2Fs41467-017-00347-4%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1038%2Fs41467-017-00347-4%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000407553800016 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1038/s41467-017-00347-4 https://www.vliz.be/imisdocs/publications/305969.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-017-00347-4 |
container_title |
Nature Communications |
container_volume |
8 |
container_issue |
1 |
_version_ |
1766259854709620736 |