Loss of sea ice during winter north of Svalbard
Sea ice loss in the Arctic Ocean has up to now been strongest during summer. In contrast, the sea ice concentration north of Svalbard has experienced a larger decline during winter since 1979. The trend in winter ice area loss is close to 10% per decade, and concurrent with a 0.3°C per decade warmin...
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International Meteorological Institute, Stockholm University
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Online Access: | https://hdl.handle.net/1956/7945 https://doi.org/10.3402/tellusa.v66.23933 |
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ftunivbergen:oai:bora.uib.no:1956/7945 2023-05-15T14:23:24+02:00 Loss of sea ice during winter north of Svalbard Onarheim, Ingrid Husøy Smedsrud, Lars Henrik Ingvaldsen, Randi Nilsen, Frank 2014-06-05 application/pdf https://hdl.handle.net/1956/7945 https://doi.org/10.3402/tellusa.v66.23933 eng eng International Meteorological Institute, Stockholm University Regional, seasonal, and predictable Arctic sea ice change urn:issn:0280-6495 https://hdl.handle.net/1956/7945 https://doi.org/10.3402/tellusa.v66.23933 cristin:1136848 Attribution CC BY http://creativecommons.org/licenses/by/4.0 Copyright 2014 I. H. Onarheim et al. 23933 Tellus. Series A, Dynamic meteorology and oceanography 66 Sea ice Atlantic water Svalbard Heat transport Air-ice-sea interactions Peer reviewed Journal article 2014 ftunivbergen https://doi.org/10.3402/tellusa.v66.23933 2023-03-14T17:43:45Z Sea ice loss in the Arctic Ocean has up to now been strongest during summer. In contrast, the sea ice concentration north of Svalbard has experienced a larger decline during winter since 1979. The trend in winter ice area loss is close to 10% per decade, and concurrent with a 0.3°C per decade warming of the Atlantic Water entering the Arctic Ocean in this region. Simultaneously, there has been a 2°C per decade warming of winter mean surface air temperature north of Svalbard, which is 20- 45% higher than observations on the west coast. Generally, the ice edge north of Svalbard has retreated towards the northeast, along the Atlantic Water pathway. By making reasonable assumptions about the Atlantic Water volume and associated heat transport, we show that the extra oceanic heat brought into the region is likely to have caused the sea ice loss. The reduced sea ice cover leads to more oceanic heat transferred to the atmosphere, suggesting that part of the atmospheric warming is driven by larger open water area. In contrast to significant trends in sea ice concentration, Atlantic Water temperature and air temperature, there is no significant temporal trend in the local winds. Thus, winds have not caused the long-term warming or sea ice loss. However, the dominant winds transport sea ice from the Arctic Ocean into the region north of Svalbard, and the local wind has influence on the year-to-year variability of the ice concentration, which correlates with surface air temperatures, ocean temperatures, as well as the local wind. publishedVersion Article in Journal/Newspaper Arctic Arctic Arctic Ocean Sea ice Svalbard University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Arctic Ocean Svalbard Tellus A: Dynamic Meteorology and Oceanography 66 1 23933 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Sea ice Atlantic water Svalbard Heat transport Air-ice-sea interactions |
spellingShingle |
Sea ice Atlantic water Svalbard Heat transport Air-ice-sea interactions Onarheim, Ingrid Husøy Smedsrud, Lars Henrik Ingvaldsen, Randi Nilsen, Frank Loss of sea ice during winter north of Svalbard |
topic_facet |
Sea ice Atlantic water Svalbard Heat transport Air-ice-sea interactions |
description |
Sea ice loss in the Arctic Ocean has up to now been strongest during summer. In contrast, the sea ice concentration north of Svalbard has experienced a larger decline during winter since 1979. The trend in winter ice area loss is close to 10% per decade, and concurrent with a 0.3°C per decade warming of the Atlantic Water entering the Arctic Ocean in this region. Simultaneously, there has been a 2°C per decade warming of winter mean surface air temperature north of Svalbard, which is 20- 45% higher than observations on the west coast. Generally, the ice edge north of Svalbard has retreated towards the northeast, along the Atlantic Water pathway. By making reasonable assumptions about the Atlantic Water volume and associated heat transport, we show that the extra oceanic heat brought into the region is likely to have caused the sea ice loss. The reduced sea ice cover leads to more oceanic heat transferred to the atmosphere, suggesting that part of the atmospheric warming is driven by larger open water area. In contrast to significant trends in sea ice concentration, Atlantic Water temperature and air temperature, there is no significant temporal trend in the local winds. Thus, winds have not caused the long-term warming or sea ice loss. However, the dominant winds transport sea ice from the Arctic Ocean into the region north of Svalbard, and the local wind has influence on the year-to-year variability of the ice concentration, which correlates with surface air temperatures, ocean temperatures, as well as the local wind. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Onarheim, Ingrid Husøy Smedsrud, Lars Henrik Ingvaldsen, Randi Nilsen, Frank |
author_facet |
Onarheim, Ingrid Husøy Smedsrud, Lars Henrik Ingvaldsen, Randi Nilsen, Frank |
author_sort |
Onarheim, Ingrid Husøy |
title |
Loss of sea ice during winter north of Svalbard |
title_short |
Loss of sea ice during winter north of Svalbard |
title_full |
Loss of sea ice during winter north of Svalbard |
title_fullStr |
Loss of sea ice during winter north of Svalbard |
title_full_unstemmed |
Loss of sea ice during winter north of Svalbard |
title_sort |
loss of sea ice during winter north of svalbard |
publisher |
International Meteorological Institute, Stockholm University |
publishDate |
2014 |
url |
https://hdl.handle.net/1956/7945 https://doi.org/10.3402/tellusa.v66.23933 |
geographic |
Arctic Arctic Ocean Svalbard |
geographic_facet |
Arctic Arctic Ocean Svalbard |
genre |
Arctic Arctic Arctic Ocean Sea ice Svalbard |
genre_facet |
Arctic Arctic Arctic Ocean Sea ice Svalbard |
op_source |
23933 Tellus. Series A, Dynamic meteorology and oceanography 66 |
op_relation |
Regional, seasonal, and predictable Arctic sea ice change urn:issn:0280-6495 https://hdl.handle.net/1956/7945 https://doi.org/10.3402/tellusa.v66.23933 cristin:1136848 |
op_rights |
Attribution CC BY http://creativecommons.org/licenses/by/4.0 Copyright 2014 I. H. Onarheim et al. |
op_doi |
https://doi.org/10.3402/tellusa.v66.23933 |
container_title |
Tellus A: Dynamic Meteorology and Oceanography |
container_volume |
66 |
container_issue |
1 |
container_start_page |
23933 |
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1766295962675838976 |