Arctic Ocean freshwater content and its decadal memory of sea-level pressure
Arctic freshwater content (FWC) has increased significantly over the last two decades, with potential future implications for the Atlantic meridional overturning circulation downstream. We investigate the relationship between Arctic FWC and atmospheric circulation in the control run of a coupled cli...
Published in: | Geophysical Research Letters |
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Language: | English |
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Amer Geophysical Union
2018
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Online Access: | https://archimer.ifremer.fr/doc/00440/55117/56571.pdf https://archimer.ifremer.fr/doc/00440/55117/56572.pdf https://doi.org/10.1029/2017GL076870 https://archimer.ifremer.fr/doc/00440/55117/ |
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ftarchimer:oai:archimer.ifremer.fr:55117 2023-05-15T14:33:01+02:00 Arctic Ocean freshwater content and its decadal memory of sea-level pressure Johnson, Helen L. Cornish, Sam B. Kostov, Yavor Beer, Emma Lique, Camille 2018-05 application/pdf https://archimer.ifremer.fr/doc/00440/55117/56571.pdf https://archimer.ifremer.fr/doc/00440/55117/56572.pdf https://doi.org/10.1029/2017GL076870 https://archimer.ifremer.fr/doc/00440/55117/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00440/55117/56571.pdf https://archimer.ifremer.fr/doc/00440/55117/56572.pdf doi:10.1029/2017GL076870 https://archimer.ifremer.fr/doc/00440/55117/ 2018 American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2018-05 , Vol. 45 , N. 10 , P. 4991-5001 Arctic Ocean climate change interannual variability freshwater adjustment timescales ocean dynamics text Publication info:eu-repo/semantics/article 2018 ftarchimer https://doi.org/10.1029/2017GL076870 2021-09-23T20:30:59Z Arctic freshwater content (FWC) has increased significantly over the last two decades, with potential future implications for the Atlantic meridional overturning circulation downstream. We investigate the relationship between Arctic FWC and atmospheric circulation in the control run of a coupled climate model. Multiple linear lagged regression is used to extract the response of total Arctic FWC to a hypothetical step increase in the principal components of sea‐level pressure. The results demonstrate that the FWC adjusts on a decadal timescale, consistent with the idea that wind‐driven ocean dynamics and eddies determine the response of Arctic Ocean circulation and properties to a change in surface forcing, as suggested by idealized models and theory. Convolving the response of FWC to a change in sea‐level pressure with historical sea‐level pressure variations reveals that the recent observed increase in Arctic FWC is related to natural variations in sea‐level pressure. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Arctic Arctic Ocean Geophysical Research Letters 45 10 4991 5001 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Arctic Ocean climate change interannual variability freshwater adjustment timescales ocean dynamics |
spellingShingle |
Arctic Ocean climate change interannual variability freshwater adjustment timescales ocean dynamics Johnson, Helen L. Cornish, Sam B. Kostov, Yavor Beer, Emma Lique, Camille Arctic Ocean freshwater content and its decadal memory of sea-level pressure |
topic_facet |
Arctic Ocean climate change interannual variability freshwater adjustment timescales ocean dynamics |
description |
Arctic freshwater content (FWC) has increased significantly over the last two decades, with potential future implications for the Atlantic meridional overturning circulation downstream. We investigate the relationship between Arctic FWC and atmospheric circulation in the control run of a coupled climate model. Multiple linear lagged regression is used to extract the response of total Arctic FWC to a hypothetical step increase in the principal components of sea‐level pressure. The results demonstrate that the FWC adjusts on a decadal timescale, consistent with the idea that wind‐driven ocean dynamics and eddies determine the response of Arctic Ocean circulation and properties to a change in surface forcing, as suggested by idealized models and theory. Convolving the response of FWC to a change in sea‐level pressure with historical sea‐level pressure variations reveals that the recent observed increase in Arctic FWC is related to natural variations in sea‐level pressure. |
format |
Article in Journal/Newspaper |
author |
Johnson, Helen L. Cornish, Sam B. Kostov, Yavor Beer, Emma Lique, Camille |
author_facet |
Johnson, Helen L. Cornish, Sam B. Kostov, Yavor Beer, Emma Lique, Camille |
author_sort |
Johnson, Helen L. |
title |
Arctic Ocean freshwater content and its decadal memory of sea-level pressure |
title_short |
Arctic Ocean freshwater content and its decadal memory of sea-level pressure |
title_full |
Arctic Ocean freshwater content and its decadal memory of sea-level pressure |
title_fullStr |
Arctic Ocean freshwater content and its decadal memory of sea-level pressure |
title_full_unstemmed |
Arctic Ocean freshwater content and its decadal memory of sea-level pressure |
title_sort |
arctic ocean freshwater content and its decadal memory of sea-level pressure |
publisher |
Amer Geophysical Union |
publishDate |
2018 |
url |
https://archimer.ifremer.fr/doc/00440/55117/56571.pdf https://archimer.ifremer.fr/doc/00440/55117/56572.pdf https://doi.org/10.1029/2017GL076870 https://archimer.ifremer.fr/doc/00440/55117/ |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change |
genre_facet |
Arctic Arctic Ocean Climate change |
op_source |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2018-05 , Vol. 45 , N. 10 , P. 4991-5001 |
op_relation |
https://archimer.ifremer.fr/doc/00440/55117/56571.pdf https://archimer.ifremer.fr/doc/00440/55117/56572.pdf doi:10.1029/2017GL076870 https://archimer.ifremer.fr/doc/00440/55117/ |
op_rights |
2018 American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1029/2017GL076870 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
10 |
container_start_page |
4991 |
op_container_end_page |
5001 |
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1766306335218991104 |