Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021
International audience Shipboard hydrography along the A25-Ovide section (2002-2018) is combined with a high-resolution mooring array (2014-2020) and a regional fleet of Deep-Argo floats (2016-2021) to describe temperature changes of overflow-derived water masses in the Irminger Sea. Removing dynami...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://insu.hal.science/insu-03683291 https://insu.hal.science/insu-03683291/document https://insu.hal.science/insu-03683291/file/Geophysical%20Research%20Letters%20-%202022%20-%20Desbruy%20res%20-%20Warming%25E2%2580%2590to%25E2%2580%2590Cooling%20Reversal%20of%20Overflow%25E2%2580%2590Derived%20Water%20Masses%20in%20the.pdf https://doi.org/10.1029/2022GL098057 |
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ftunivbrest:oai:HAL:insu-03683291v1 2024-04-14T08:10:52+00:00 Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021 Desbruyères, Damien G. Bravo, Eva Prieto Thierry, Virginie Mercier, Herlé Lherminier, Pascale Cabanes, Cécile Biló, Tiago C. Fried, Nora Femke de Jong, M. Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) 2022 https://insu.hal.science/insu-03683291 https://insu.hal.science/insu-03683291/document https://insu.hal.science/insu-03683291/file/Geophysical%20Research%20Letters%20-%202022%20-%20Desbruy%20res%20-%20Warming%25E2%2580%2590to%25E2%2580%2590Cooling%20Reversal%20of%20Overflow%25E2%2580%2590Derived%20Water%20Masses%20in%20the.pdf https://doi.org/10.1029/2022GL098057 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2022GL098057 insu-03683291 https://insu.hal.science/insu-03683291 https://insu.hal.science/insu-03683291/document https://insu.hal.science/insu-03683291/file/Geophysical%20Research%20Letters%20-%202022%20-%20Desbruy%20res%20-%20Warming%25E2%2580%2590to%25E2%2580%2590Cooling%20Reversal%20of%20Overflow%25E2%2580%2590Derived%20Water%20Masses%20in%20the.pdf BIBCODE: 2022GeoRL.4998057D doi:10.1029/2022GL098057 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-03683291 Geophysical Research Letters, 2022, 49, ⟨10.1029/2022GL098057⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2022 ftunivbrest https://doi.org/10.1029/2022GL098057 2024-03-21T16:24:19Z International audience Shipboard hydrography along the A25-Ovide section (2002-2018) is combined with a high-resolution mooring array (2014-2020) and a regional fleet of Deep-Argo floats (2016-2021) to describe temperature changes of overflow-derived water masses in the Irminger Sea. Removing dynamical influences enables to identify a new statistically significant trend reversal in Iceland Scotland Overflow Water (ISOW) and Denmark Strait Overflow Water (DSOW) core temperatures in the mid-2010s. A basin-wide cooling trend of −16 ± 6 m°C yr −1 during 2016-2021—but reaching as strong as −44 ± 13 m°C yr −1 for DSOW in recent years—is found to interrupt a warming phase that was prevailing since the late 1990s. The absence of an apparent reversal in the Nordic Seas and the faster changes detected in DSOW compared to ISOW point out the entrainment of subpolar signals within the overflows near the Greenland-Iceland-Scotland sills as a most likely driver. Article in Journal/Newspaper Denmark Strait Greenland Iceland Nordic Seas Université de Bretagne Occidentale: HAL Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Geophysical Research Letters 49 10 |
institution |
Open Polar |
collection |
Université de Bretagne Occidentale: HAL |
op_collection_id |
ftunivbrest |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Desbruyères, Damien G. Bravo, Eva Prieto Thierry, Virginie Mercier, Herlé Lherminier, Pascale Cabanes, Cécile Biló, Tiago C. Fried, Nora Femke de Jong, M. Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021 |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Shipboard hydrography along the A25-Ovide section (2002-2018) is combined with a high-resolution mooring array (2014-2020) and a regional fleet of Deep-Argo floats (2016-2021) to describe temperature changes of overflow-derived water masses in the Irminger Sea. Removing dynamical influences enables to identify a new statistically significant trend reversal in Iceland Scotland Overflow Water (ISOW) and Denmark Strait Overflow Water (DSOW) core temperatures in the mid-2010s. A basin-wide cooling trend of −16 ± 6 m°C yr −1 during 2016-2021—but reaching as strong as −44 ± 13 m°C yr −1 for DSOW in recent years—is found to interrupt a warming phase that was prevailing since the late 1990s. The absence of an apparent reversal in the Nordic Seas and the faster changes detected in DSOW compared to ISOW point out the entrainment of subpolar signals within the overflows near the Greenland-Iceland-Scotland sills as a most likely driver. |
author2 |
Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Desbruyères, Damien G. Bravo, Eva Prieto Thierry, Virginie Mercier, Herlé Lherminier, Pascale Cabanes, Cécile Biló, Tiago C. Fried, Nora Femke de Jong, M. |
author_facet |
Desbruyères, Damien G. Bravo, Eva Prieto Thierry, Virginie Mercier, Herlé Lherminier, Pascale Cabanes, Cécile Biló, Tiago C. Fried, Nora Femke de Jong, M. |
author_sort |
Desbruyères, Damien G. |
title |
Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021 |
title_short |
Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021 |
title_full |
Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021 |
title_fullStr |
Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021 |
title_full_unstemmed |
Warming-to-Cooling Reversal of Overflow-Derived Water Masses in the Irminger Sea During 2002-2021 |
title_sort |
warming-to-cooling reversal of overflow-derived water masses in the irminger sea during 2002-2021 |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://insu.hal.science/insu-03683291 https://insu.hal.science/insu-03683291/document https://insu.hal.science/insu-03683291/file/Geophysical%20Research%20Letters%20-%202022%20-%20Desbruy%20res%20-%20Warming%25E2%2580%2590to%25E2%2580%2590Cooling%20Reversal%20of%20Overflow%25E2%2580%2590Derived%20Water%20Masses%20in%20the.pdf https://doi.org/10.1029/2022GL098057 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Greenland Irminger Sea |
geographic_facet |
Greenland Irminger Sea |
genre |
Denmark Strait Greenland Iceland Nordic Seas |
genre_facet |
Denmark Strait Greenland Iceland Nordic Seas |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-03683291 Geophysical Research Letters, 2022, 49, ⟨10.1029/2022GL098057⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2022GL098057 insu-03683291 https://insu.hal.science/insu-03683291 https://insu.hal.science/insu-03683291/document https://insu.hal.science/insu-03683291/file/Geophysical%20Research%20Letters%20-%202022%20-%20Desbruy%20res%20-%20Warming%25E2%2580%2590to%25E2%2580%2590Cooling%20Reversal%20of%20Overflow%25E2%2580%2590Derived%20Water%20Masses%20in%20the.pdf BIBCODE: 2022GeoRL.4998057D doi:10.1029/2022GL098057 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2022GL098057 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
10 |
_version_ |
1796308521149530112 |