Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016
Warm water of subtropical origin flows northward in the Atlantic Ocean and transports heat to high latitudes. This poleward heat transport has been implicated as one possible cause of the declining sea-ice extent and increasing ocean temperatures across the Nordic Seas and the Arctic Ocean, but robu...
Published in: | Nature Climate Change |
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Online Access: | https://pure.uhi.ac.uk/en/publications/3ca7a895-1098-41b5-a4da-a89707ab0519 https://doi.org/10.1038/s41558-020-00941-3 https://pureadmin.uhi.ac.uk/ws/files/14582971/Tsubouchi_ea_as_accepted.pdf |
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ftuhipublicatio:oai:pure.atira.dk:publications/3ca7a895-1098-41b5-a4da-a89707ab0519 2024-06-23T07:48:35+00:00 Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 Tsubouchi, Takamasa Vage, kjetil Hansen, Bogi Larsen, Karin Margretha Osterhus, Svein Johnson, Clare Louise Jonsson, Steingrimur Valdimarsson, Hedinn 2020-11-23 application/pdf https://pure.uhi.ac.uk/en/publications/3ca7a895-1098-41b5-a4da-a89707ab0519 https://doi.org/10.1038/s41558-020-00941-3 https://pureadmin.uhi.ac.uk/ws/files/14582971/Tsubouchi_ea_as_accepted.pdf eng eng https://pure.uhi.ac.uk/en/publications/3ca7a895-1098-41b5-a4da-a89707ab0519 info:eu-repo/semantics/openAccess Tsubouchi , T , Vage , K , Hansen , B , Larsen , K M , Osterhus , S , Johnson , C L , Jonsson , S & Valdimarsson , H 2020 , ' Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 ' , Nature Climate Change , vol. 2020 . https://doi.org/10.1038/s41558-020-00941-3 article 2020 ftuhipublicatio https://doi.org/10.1038/s41558-020-00941-3 2024-06-03T23:48:37Z Warm water of subtropical origin flows northward in the Atlantic Ocean and transports heat to high latitudes. This poleward heat transport has been implicated as one possible cause of the declining sea-ice extent and increasing ocean temperatures across the Nordic Seas and the Arctic Ocean, but robust estimates are still lacking. Here, we use a box inverse model and more than 20 years of volume transport measurements to show that the mean ocean heat transport was 305 ± 26 TW for 1993–2016. A significant increase of 21 TW occurred after 2001, which is sufficient to account for the recent accumulation of heat in the northern seas. Ocean heat transport may therefore have been a major contributor to climate change since the late 1990s. This increased heat transport contrasts with the Atlantic Meridional Overturning Circulation (AMOC) slowdown at mid-latitudes and indicates a discontinuity of the overturning circulation measured at different latitudes in the Atlantic Ocean. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Climate change Nordic Seas Sea ice University of the Highlands and Islands: Research Database of UHI Arctic Arctic Ocean Nature Climate Change 11 1 21 26 |
institution |
Open Polar |
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University of the Highlands and Islands: Research Database of UHI |
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ftuhipublicatio |
language |
English |
description |
Warm water of subtropical origin flows northward in the Atlantic Ocean and transports heat to high latitudes. This poleward heat transport has been implicated as one possible cause of the declining sea-ice extent and increasing ocean temperatures across the Nordic Seas and the Arctic Ocean, but robust estimates are still lacking. Here, we use a box inverse model and more than 20 years of volume transport measurements to show that the mean ocean heat transport was 305 ± 26 TW for 1993–2016. A significant increase of 21 TW occurred after 2001, which is sufficient to account for the recent accumulation of heat in the northern seas. Ocean heat transport may therefore have been a major contributor to climate change since the late 1990s. This increased heat transport contrasts with the Atlantic Meridional Overturning Circulation (AMOC) slowdown at mid-latitudes and indicates a discontinuity of the overturning circulation measured at different latitudes in the Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
Tsubouchi, Takamasa Vage, kjetil Hansen, Bogi Larsen, Karin Margretha Osterhus, Svein Johnson, Clare Louise Jonsson, Steingrimur Valdimarsson, Hedinn |
spellingShingle |
Tsubouchi, Takamasa Vage, kjetil Hansen, Bogi Larsen, Karin Margretha Osterhus, Svein Johnson, Clare Louise Jonsson, Steingrimur Valdimarsson, Hedinn Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 |
author_facet |
Tsubouchi, Takamasa Vage, kjetil Hansen, Bogi Larsen, Karin Margretha Osterhus, Svein Johnson, Clare Louise Jonsson, Steingrimur Valdimarsson, Hedinn |
author_sort |
Tsubouchi, Takamasa |
title |
Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 |
title_short |
Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 |
title_full |
Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 |
title_fullStr |
Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 |
title_full_unstemmed |
Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 |
title_sort |
increased ocean heat transport into the nordic seas and arctic ocean over the period 1993-2016 |
publishDate |
2020 |
url |
https://pure.uhi.ac.uk/en/publications/3ca7a895-1098-41b5-a4da-a89707ab0519 https://doi.org/10.1038/s41558-020-00941-3 https://pureadmin.uhi.ac.uk/ws/files/14582971/Tsubouchi_ea_as_accepted.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Climate change Nordic Seas Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Climate change Nordic Seas Sea ice |
op_source |
Tsubouchi , T , Vage , K , Hansen , B , Larsen , K M , Osterhus , S , Johnson , C L , Jonsson , S & Valdimarsson , H 2020 , ' Increased ocean heat transport into the Nordic Seas and Arctic Ocean over the period 1993-2016 ' , Nature Climate Change , vol. 2020 . https://doi.org/10.1038/s41558-020-00941-3 |
op_relation |
https://pure.uhi.ac.uk/en/publications/3ca7a895-1098-41b5-a4da-a89707ab0519 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41558-020-00941-3 |
container_title |
Nature Climate Change |
container_volume |
11 |
container_issue |
1 |
container_start_page |
21 |
op_container_end_page |
26 |
_version_ |
1802638946134392832 |