Warming‐to‐cooling reversal of overflow‐derived water masses in the Irminger Sea during 2002‐2021
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 en...
Published in: | Geophysical Research Letters |
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Language: | English |
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2022
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Online Access: | https://www.vliz.be/imisdocs/publications/92/377792.pdf |
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ftnioz:oai:imis.nioz.nl:352102 2023-05-15T16:00:39+02:00 Warming‐to‐cooling reversal of overflow‐derived water masses in the Irminger Sea during 2002‐2021 Desbruyères, D.G. Bravo, E.P. Thierry, V. Mercier, H. Lherminier, P. Cabanes, C. Biló, T.C. Fried, N. de Jong, M.F. 2022 application/pdf https://www.vliz.be/imisdocs/publications/92/377792.pdf en eng info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1029/2022gl098057 https://www.vliz.be/imisdocs/publications/92/377792.pdf info:eu-repo/semantics/openAccess %3Ci%3EGeophys.+Res.+Lett.+49%2810%29%3C%2Fi%3E%3A+e2022GL098057.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1029%2F2022gl098057%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1029%2F2022gl098057%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftnioz https://doi.org/10.1029/2022gl098057 2022-06-15T22:18:33Z 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 1990’s. 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 NIOZ Repository (Royal Netherlands Institute for Sea Research) Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Geophysical Research Letters 49 10 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
description |
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 1990’s. 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. |
format |
Article in Journal/Newspaper |
author |
Desbruyères, D.G. Bravo, E.P. Thierry, V. Mercier, H. Lherminier, P. Cabanes, C. Biló, T.C. Fried, N. de Jong, M.F. |
spellingShingle |
Desbruyères, D.G. Bravo, E.P. Thierry, V. Mercier, H. Lherminier, P. Cabanes, C. Biló, T.C. Fried, N. de Jong, M.F. Warming‐to‐cooling reversal of overflow‐derived water masses in the Irminger Sea during 2002‐2021 |
author_facet |
Desbruyères, D.G. Bravo, E.P. Thierry, V. Mercier, H. Lherminier, P. Cabanes, C. Biló, T.C. Fried, N. de Jong, M.F. |
author_sort |
Desbruyères, D.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 |
publishDate |
2022 |
url |
https://www.vliz.be/imisdocs/publications/92/377792.pdf |
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 |
%3Ci%3EGeophys.+Res.+Lett.+49%2810%29%3C%2Fi%3E%3A+e2022GL098057.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1029%2F2022gl098057%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1029%2F2022gl098057%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1029/2022gl098057 https://www.vliz.be/imisdocs/publications/92/377792.pdf |
op_rights |
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_ |
1766396659328090112 |