Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model
We utilize a nudged simulation with the coupled regional atmosphere-ocean-sea ice model HIRHAM–NAOSIM over the Arctic to conduct an in-depth analysis of the impact of a sequence of three intense cyclones on the sea ice cover in the Barents and Kara Seas in February 2020. To clarify the underlying me...
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ftdoajarticles:oai:doaj.org/article:900fff6691a049459c06631f2f05dd55 2023-06-06T11:50:41+02:00 Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model Lars Aue Leonie Röntgen Wolfgang Dorn Petteri Uotila Timo Vihma Gunnar Spreen Annette Rinke 2023-04-01T00:00:00Z https://doi.org/10.3389/feart.2023.1112467 https://doaj.org/article/900fff6691a049459c06631f2f05dd55 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/feart.2023.1112467/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2023.1112467 https://doaj.org/article/900fff6691a049459c06631f2f05dd55 Frontiers in Earth Science, Vol 11 (2023) cyclones sea ice barents-kara seas arctic ocean MOSAIC Science Q article 2023 ftdoajarticles https://doi.org/10.3389/feart.2023.1112467 2023-04-16T00:32:26Z We utilize a nudged simulation with the coupled regional atmosphere-ocean-sea ice model HIRHAM–NAOSIM over the Arctic to conduct an in-depth analysis of the impact of a sequence of three intense cyclones on the sea ice cover in the Barents and Kara Seas in February 2020. To clarify the underlying mechanisms we decompose changes in sea ice concentration (SIC) and thickness (SIT) into their dynamic and thermodynamic contributions and analyze them in concert with simulated changes in the wind forcing and the surface energy budget. Our findings reveal that changes in SIT during and after the cyclone passages are mostly driven by dynamic processes such as increased ice drift and deformation. With respect to SIC, the relative importance of dynamics and thermodynamics depends on the considered time scale and on the general conditions of the cyclone passages. If cyclones follow on each other in rapid succession, dynamic mechanisms dominate the SIC response for time scales of more than 2 weeks and thermodynamic effects via advection of warm-moist/cold-dry air masses on the cyclone’s front/back side only play a secondary role. However, if sufficiently long time elapses until the arrival of the next storm, thermodynamic SIC increase due to refreezing under the influence of cold and dry air at the backside of the cyclone becomes the dominating mechanism during the days following the cyclone passage. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Barents Sea Frontiers in Earth Science 11 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
cyclones sea ice barents-kara seas arctic ocean MOSAIC Science Q |
spellingShingle |
cyclones sea ice barents-kara seas arctic ocean MOSAIC Science Q Lars Aue Leonie Röntgen Wolfgang Dorn Petteri Uotila Timo Vihma Gunnar Spreen Annette Rinke Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model |
topic_facet |
cyclones sea ice barents-kara seas arctic ocean MOSAIC Science Q |
description |
We utilize a nudged simulation with the coupled regional atmosphere-ocean-sea ice model HIRHAM–NAOSIM over the Arctic to conduct an in-depth analysis of the impact of a sequence of three intense cyclones on the sea ice cover in the Barents and Kara Seas in February 2020. To clarify the underlying mechanisms we decompose changes in sea ice concentration (SIC) and thickness (SIT) into their dynamic and thermodynamic contributions and analyze them in concert with simulated changes in the wind forcing and the surface energy budget. Our findings reveal that changes in SIT during and after the cyclone passages are mostly driven by dynamic processes such as increased ice drift and deformation. With respect to SIC, the relative importance of dynamics and thermodynamics depends on the considered time scale and on the general conditions of the cyclone passages. If cyclones follow on each other in rapid succession, dynamic mechanisms dominate the SIC response for time scales of more than 2 weeks and thermodynamic effects via advection of warm-moist/cold-dry air masses on the cyclone’s front/back side only play a secondary role. However, if sufficiently long time elapses until the arrival of the next storm, thermodynamic SIC increase due to refreezing under the influence of cold and dry air at the backside of the cyclone becomes the dominating mechanism during the days following the cyclone passage. |
format |
Article in Journal/Newspaper |
author |
Lars Aue Leonie Röntgen Wolfgang Dorn Petteri Uotila Timo Vihma Gunnar Spreen Annette Rinke |
author_facet |
Lars Aue Leonie Röntgen Wolfgang Dorn Petteri Uotila Timo Vihma Gunnar Spreen Annette Rinke |
author_sort |
Lars Aue |
title |
Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model |
title_short |
Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model |
title_full |
Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model |
title_fullStr |
Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model |
title_full_unstemmed |
Impact of three intense winter cyclones on the sea ice cover in the Barents Sea: A case study with a coupled regional climate model |
title_sort |
impact of three intense winter cyclones on the sea ice cover in the barents sea: a case study with a coupled regional climate model |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/feart.2023.1112467 https://doaj.org/article/900fff6691a049459c06631f2f05dd55 |
geographic |
Arctic Arctic Ocean Barents Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Ocean Barents Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Sea ice |
op_source |
Frontiers in Earth Science, Vol 11 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/feart.2023.1112467/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2023.1112467 https://doaj.org/article/900fff6691a049459c06631f2f05dd55 |
op_doi |
https://doi.org/10.3389/feart.2023.1112467 |
container_title |
Frontiers in Earth Science |
container_volume |
11 |
_version_ |
1767956405985214464 |