The seasonality of Antarctic sea ice trends
Antarctic sea ice is experiencing a weak overall increase in area that is the residual of opposing regional trends. This study considers their seasonal pattern. In addition to traditional ice concentration and total ice area, temporal derivatives of these quantities are investigated (‘intensificatio...
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American Geophysical Union
2014
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Online Access: | http://nora.nerc.ac.uk/id/eprint/507330/ https://nora.nerc.ac.uk/id/eprint/507330/1/grl51750.pdf https://doi.org/10.1002/2014GL060172 |
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ftnerc:oai:nora.nerc.ac.uk:507330 2023-05-15T13:48:08+02:00 The seasonality of Antarctic sea ice trends Holland, Paul R. 2014-06-28 text http://nora.nerc.ac.uk/id/eprint/507330/ https://nora.nerc.ac.uk/id/eprint/507330/1/grl51750.pdf https://doi.org/10.1002/2014GL060172 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/507330/1/grl51750.pdf Holland, Paul R. orcid:0000-0001-8370-289X . 2014 The seasonality of Antarctic sea ice trends. Geophysical Research Letters, 41 (12). 4230-4237. https://doi.org/10.1002/2014GL060172 <https://doi.org/10.1002/2014GL060172> Publication - Article PeerReviewed 2014 ftnerc https://doi.org/10.1002/2014GL060172 2023-02-04T19:39:41Z Antarctic sea ice is experiencing a weak overall increase in area that is the residual of opposing regional trends. This study considers their seasonal pattern. In addition to traditional ice concentration and total ice area, temporal derivatives of these quantities are investigated (‘intensification’ and ‘expansion’ respectively). This is crucial to the attribution of trends, since changes in forcing directly affect ice areal change (rather than ice area). Diverse regional trends all contribute significantly to the overall increase. Trends in the Weddell and Amundsen—Bellingshausen regions compensate in magnitude and seasonality. The largest concentration trends, in autumn, are actually caused by intensification trends during spring. Autumn intensification trends directly oppose autumn concentration trends in most places, seemingly as a result of ice and ocean feedbacks. Springtime trends are reconcilable with wind trends, but further study of changes during the spring melting season is required to unravel the Antarctic sea ice increase. Article in Journal/Newspaper Antarc* Antarctic Sea ice Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Weddell Geophysical Research Letters 41 12 4230 4237 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Antarctic sea ice is experiencing a weak overall increase in area that is the residual of opposing regional trends. This study considers their seasonal pattern. In addition to traditional ice concentration and total ice area, temporal derivatives of these quantities are investigated (‘intensification’ and ‘expansion’ respectively). This is crucial to the attribution of trends, since changes in forcing directly affect ice areal change (rather than ice area). Diverse regional trends all contribute significantly to the overall increase. Trends in the Weddell and Amundsen—Bellingshausen regions compensate in magnitude and seasonality. The largest concentration trends, in autumn, are actually caused by intensification trends during spring. Autumn intensification trends directly oppose autumn concentration trends in most places, seemingly as a result of ice and ocean feedbacks. Springtime trends are reconcilable with wind trends, but further study of changes during the spring melting season is required to unravel the Antarctic sea ice increase. |
format |
Article in Journal/Newspaper |
author |
Holland, Paul R. |
spellingShingle |
Holland, Paul R. The seasonality of Antarctic sea ice trends |
author_facet |
Holland, Paul R. |
author_sort |
Holland, Paul R. |
title |
The seasonality of Antarctic sea ice trends |
title_short |
The seasonality of Antarctic sea ice trends |
title_full |
The seasonality of Antarctic sea ice trends |
title_fullStr |
The seasonality of Antarctic sea ice trends |
title_full_unstemmed |
The seasonality of Antarctic sea ice trends |
title_sort |
seasonality of antarctic sea ice trends |
publisher |
American Geophysical Union |
publishDate |
2014 |
url |
http://nora.nerc.ac.uk/id/eprint/507330/ https://nora.nerc.ac.uk/id/eprint/507330/1/grl51750.pdf https://doi.org/10.1002/2014GL060172 |
geographic |
Antarctic The Antarctic Weddell |
geographic_facet |
Antarctic The Antarctic Weddell |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_relation |
https://nora.nerc.ac.uk/id/eprint/507330/1/grl51750.pdf Holland, Paul R. orcid:0000-0001-8370-289X . 2014 The seasonality of Antarctic sea ice trends. Geophysical Research Letters, 41 (12). 4230-4237. https://doi.org/10.1002/2014GL060172 <https://doi.org/10.1002/2014GL060172> |
op_doi |
https://doi.org/10.1002/2014GL060172 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
12 |
container_start_page |
4230 |
op_container_end_page |
4237 |
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1766248761482280960 |