New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter
Based on the ERA5 reanalysis, we report on statistically significant impacts of transient cyclones on sea ice concentration (SIC) in the Atlantic sector of the Arctic Ocean in winter under “New Arctic” conditions (2000–2020). This includes a pattern of reduced SIC prior to and during cyclones for th...
Published in: | Geophysical Research Letters |
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2022
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Online Access: | https://zenodo.org/record/8065952 https://doi.org/10.1029/2022GL100051 |
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ftzenodo:oai:zenodo.org:8065952 2023-07-16T03:55:59+02:00 New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter Aue, Lars Vihma, Timo Uotila, Petteri Rinke, Annette 2022-11-16 https://zenodo.org/record/8065952 https://doi.org/10.1029/2022GL100051 eng eng info:eu-repo/grantAgreement/EC/H2020/101003590/ https://zenodo.org/communities/polarres https://zenodo.org/record/8065952 https://doi.org/10.1029/2022GL100051 oai:zenodo.org:8065952 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/article publication-article 2022 ftzenodo https://doi.org/10.1029/2022GL100051 2023-06-27T23:03:10Z Based on the ERA5 reanalysis, we report on statistically significant impacts of transient cyclones on sea ice concentration (SIC) in the Atlantic sector of the Arctic Ocean in winter under “New Arctic” conditions (2000–2020). This includes a pattern of reduced SIC prior to and during cyclones for the whole study domain, while a regional difference between increased SIC in the Barents Sea and reduced SIC in the Greenland Sea is found as the net effect from 3 days prior to 5 days after the cyclone passage. Generally, locally low to medium SIC conditions combined with intense cyclones drive highest SIC changes. There are indications that both thermodynamic and dynamic effects contribute to the SIC changes, but a detailed quantification is required in future research. We provide evidence that cyclone impacts on SIC have amplified compared to the “Old Arctic” (1979–1999), particularly in the Barents Sea. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Sea ice Zenodo Arctic Arctic Ocean Barents Sea Greenland Geophysical Research Letters 49 22 |
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Open Polar |
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ftzenodo |
language |
English |
description |
Based on the ERA5 reanalysis, we report on statistically significant impacts of transient cyclones on sea ice concentration (SIC) in the Atlantic sector of the Arctic Ocean in winter under “New Arctic” conditions (2000–2020). This includes a pattern of reduced SIC prior to and during cyclones for the whole study domain, while a regional difference between increased SIC in the Barents Sea and reduced SIC in the Greenland Sea is found as the net effect from 3 days prior to 5 days after the cyclone passage. Generally, locally low to medium SIC conditions combined with intense cyclones drive highest SIC changes. There are indications that both thermodynamic and dynamic effects contribute to the SIC changes, but a detailed quantification is required in future research. We provide evidence that cyclone impacts on SIC have amplified compared to the “Old Arctic” (1979–1999), particularly in the Barents Sea. |
format |
Article in Journal/Newspaper |
author |
Aue, Lars Vihma, Timo Uotila, Petteri Rinke, Annette |
spellingShingle |
Aue, Lars Vihma, Timo Uotila, Petteri Rinke, Annette New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter |
author_facet |
Aue, Lars Vihma, Timo Uotila, Petteri Rinke, Annette |
author_sort |
Aue, Lars |
title |
New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter |
title_short |
New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter |
title_full |
New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter |
title_fullStr |
New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter |
title_full_unstemmed |
New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter |
title_sort |
new insights into cyclone impacts on sea ice in the atlantic sector of the arctic ocean in winter |
publishDate |
2022 |
url |
https://zenodo.org/record/8065952 https://doi.org/10.1029/2022GL100051 |
geographic |
Arctic Arctic Ocean Barents Sea Greenland |
geographic_facet |
Arctic Arctic Ocean Barents Sea Greenland |
genre |
Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Sea ice |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/101003590/ https://zenodo.org/communities/polarres https://zenodo.org/record/8065952 https://doi.org/10.1029/2022GL100051 oai:zenodo.org:8065952 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.1029/2022GL100051 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
22 |
_version_ |
1771542083651239936 |