The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification
The loss of Arctic sea ice is a conspicuous example of climate change. Climate models project ice-free conditions during summer this century under realistic emission scenarios, reflecting the increase in seasonality in ice cover. To quantify the increased seasonality in the Arctic-Subarctic sea ice...
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ftoceanrep:oai:oceanrep.geomar.de:38856 2023-05-15T13:32:39+02:00 The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification Haine, Thomas W. N. Martin, Torge 2017-12-01 text https://oceanrep.geomar.de/id/eprint/38856/ https://oceanrep.geomar.de/id/eprint/38856/1/s41598-017-04573-0.pdf https://oceanrep.geomar.de/id/eprint/38856/2/41598_2017_4573_MOESM1_ESM.pdf https://doi.org/10.1038/s41598-017-04573-0 en eng Nature Research https://oceanrep.geomar.de/id/eprint/38856/1/s41598-017-04573-0.pdf https://oceanrep.geomar.de/id/eprint/38856/2/41598_2017_4573_MOESM1_ESM.pdf Haine, T. W. N. and Martin, T. (2017) The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification. Open Access Scientific Reports, 7 (1). p. 4618. DOI 10.1038/s41598-017-04573-0 <https://doi.org/10.1038/s41598-017-04573-0>. doi:10.1038/s41598-017-04573-0 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2017 ftoceanrep https://doi.org/10.1038/s41598-017-04573-0 2023-04-07T15:34:28Z The loss of Arctic sea ice is a conspicuous example of climate change. Climate models project ice-free conditions during summer this century under realistic emission scenarios, reflecting the increase in seasonality in ice cover. To quantify the increased seasonality in the Arctic-Subarctic sea ice system, we define a non-dimensional seasonality number for sea ice extent, area, and volume from satellite data and realistic coupled climate models. We show that the Arctic-Subarctic, i.e. The northern hemisphere, sea ice now exhibits similar levels of seasonality to the Antarctic, which is in a seasonal regime without significant change since satellite observations began in 1979. Realistic climate models suggest that this transition to the seasonal regime is being accompanied by a maximum in Arctic amplification, which is the faster warming of Arctic latitudes compared to the global mean, in the 2010s. The strong link points to a peak in sea-ice-related feedbacks that occurs long before the Arctic becomes ice-free in summer. Article in Journal/Newspaper Antarc* Antarctic Arctic Arctic Climate change Sea ice Subarctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Arctic The Antarctic Scientific Reports 7 1 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The loss of Arctic sea ice is a conspicuous example of climate change. Climate models project ice-free conditions during summer this century under realistic emission scenarios, reflecting the increase in seasonality in ice cover. To quantify the increased seasonality in the Arctic-Subarctic sea ice system, we define a non-dimensional seasonality number for sea ice extent, area, and volume from satellite data and realistic coupled climate models. We show that the Arctic-Subarctic, i.e. The northern hemisphere, sea ice now exhibits similar levels of seasonality to the Antarctic, which is in a seasonal regime without significant change since satellite observations began in 1979. Realistic climate models suggest that this transition to the seasonal regime is being accompanied by a maximum in Arctic amplification, which is the faster warming of Arctic latitudes compared to the global mean, in the 2010s. The strong link points to a peak in sea-ice-related feedbacks that occurs long before the Arctic becomes ice-free in summer. |
format |
Article in Journal/Newspaper |
author |
Haine, Thomas W. N. Martin, Torge |
spellingShingle |
Haine, Thomas W. N. Martin, Torge The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification |
author_facet |
Haine, Thomas W. N. Martin, Torge |
author_sort |
Haine, Thomas W. N. |
title |
The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification |
title_short |
The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification |
title_full |
The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification |
title_fullStr |
The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification |
title_full_unstemmed |
The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification |
title_sort |
arctic-subarctic sea ice system is entering a seasonal regime: implications for future arctic amplification |
publisher |
Nature Research |
publishDate |
2017 |
url |
https://oceanrep.geomar.de/id/eprint/38856/ https://oceanrep.geomar.de/id/eprint/38856/1/s41598-017-04573-0.pdf https://oceanrep.geomar.de/id/eprint/38856/2/41598_2017_4573_MOESM1_ESM.pdf https://doi.org/10.1038/s41598-017-04573-0 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic Arctic Climate change Sea ice Subarctic |
genre_facet |
Antarc* Antarctic Arctic Arctic Climate change Sea ice Subarctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/38856/1/s41598-017-04573-0.pdf https://oceanrep.geomar.de/id/eprint/38856/2/41598_2017_4573_MOESM1_ESM.pdf Haine, T. W. N. and Martin, T. (2017) The Arctic-Subarctic sea ice system is entering a seasonal regime: Implications for future Arctic amplification. Open Access Scientific Reports, 7 (1). p. 4618. DOI 10.1038/s41598-017-04573-0 <https://doi.org/10.1038/s41598-017-04573-0>. doi:10.1038/s41598-017-04573-0 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41598-017-04573-0 |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766028919437262848 |