Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers
Abstract The sea‐ice cover in the Barents and Kara Seas (BKS) displays pronounced interannual variability. Both atmospheric and oceanic drivers have been found to influence sea‐ice variability, but their relative strength and regional importance remain under debate. Here, we use the Liang‐Kleeman in...
Published in: | Geophysical Research Letters |
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Online Access: | https://doi.org/10.1029/2024GL108195 https://doaj.org/article/6fc4bb5ab28444f0a8e198ebfef13b50 |
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ftdoajarticles:oai:doaj.org/article:6fc4bb5ab28444f0a8e198ebfef13b50 2024-09-15T17:57:55+00:00 Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers Jakob Dörr Marius Årthun David Docquier Camille Li Tor Eldevik 2024-04-01T00:00:00Z https://doi.org/10.1029/2024GL108195 https://doaj.org/article/6fc4bb5ab28444f0a8e198ebfef13b50 EN eng Wiley https://doi.org/10.1029/2024GL108195 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2024GL108195 https://doaj.org/article/6fc4bb5ab28444f0a8e198ebfef13b50 Geophysical Research Letters, Vol 51, Iss 7, Pp n/a-n/a (2024) sea ice internal variability causal analysis ocean heat transport atmospheric circulation Arctic Geophysics. Cosmic physics QC801-809 article 2024 ftdoajarticles https://doi.org/10.1029/2024GL108195 2024-08-05T17:49:23Z Abstract The sea‐ice cover in the Barents and Kara Seas (BKS) displays pronounced interannual variability. Both atmospheric and oceanic drivers have been found to influence sea‐ice variability, but their relative strength and regional importance remain under debate. Here, we use the Liang‐Kleeman information flow method to quantify the causal influence of oceanic and atmospheric drivers on the annual sea‐ice cover in the BKS in the Community Earth System Model large ensemble and reanalysis. We find that atmospheric drivers dominate in the northern part, ocean heat transport dominates in the central and northeastern part, and local sea‐surface temperature dominates in the southern part. Furthermore, the large‐scale atmospheric circulation over the Nordic Seas drives ocean heat transport into the Barents Sea, which then influences sea ice. Under future sea‐ice retreat, the atmospheric drivers are expected to become more important. Article in Journal/Newspaper Barents Sea Nordic Seas Sea ice Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 51 7 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
sea ice internal variability causal analysis ocean heat transport atmospheric circulation Arctic Geophysics. Cosmic physics QC801-809 |
spellingShingle |
sea ice internal variability causal analysis ocean heat transport atmospheric circulation Arctic Geophysics. Cosmic physics QC801-809 Jakob Dörr Marius Årthun David Docquier Camille Li Tor Eldevik Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers |
topic_facet |
sea ice internal variability causal analysis ocean heat transport atmospheric circulation Arctic Geophysics. Cosmic physics QC801-809 |
description |
Abstract The sea‐ice cover in the Barents and Kara Seas (BKS) displays pronounced interannual variability. Both atmospheric and oceanic drivers have been found to influence sea‐ice variability, but their relative strength and regional importance remain under debate. Here, we use the Liang‐Kleeman information flow method to quantify the causal influence of oceanic and atmospheric drivers on the annual sea‐ice cover in the BKS in the Community Earth System Model large ensemble and reanalysis. We find that atmospheric drivers dominate in the northern part, ocean heat transport dominates in the central and northeastern part, and local sea‐surface temperature dominates in the southern part. Furthermore, the large‐scale atmospheric circulation over the Nordic Seas drives ocean heat transport into the Barents Sea, which then influences sea ice. Under future sea‐ice retreat, the atmospheric drivers are expected to become more important. |
format |
Article in Journal/Newspaper |
author |
Jakob Dörr Marius Årthun David Docquier Camille Li Tor Eldevik |
author_facet |
Jakob Dörr Marius Årthun David Docquier Camille Li Tor Eldevik |
author_sort |
Jakob Dörr |
title |
Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers |
title_short |
Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers |
title_full |
Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers |
title_fullStr |
Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers |
title_full_unstemmed |
Causal Links Between Sea‐Ice Variability in the Barents‐Kara Seas and Oceanic and Atmospheric Drivers |
title_sort |
causal links between sea‐ice variability in the barents‐kara seas and oceanic and atmospheric drivers |
publisher |
Wiley |
publishDate |
2024 |
url |
https://doi.org/10.1029/2024GL108195 https://doaj.org/article/6fc4bb5ab28444f0a8e198ebfef13b50 |
genre |
Barents Sea Nordic Seas Sea ice |
genre_facet |
Barents Sea Nordic Seas Sea ice |
op_source |
Geophysical Research Letters, Vol 51, Iss 7, Pp n/a-n/a (2024) |
op_relation |
https://doi.org/10.1029/2024GL108195 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2024GL108195 https://doaj.org/article/6fc4bb5ab28444f0a8e198ebfef13b50 |
op_doi |
https://doi.org/10.1029/2024GL108195 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
7 |
_version_ |
1810434142041538560 |