Labrador current variability over the last 2000 years
The ice-loaded Labrador Current (LC) is an important component of the western North Atlantic circulation that influences the position and strength of the northern limb of the North Atlantic Current (NAC). This flow of cold and fresh Polar Waters originating from the Arctic has a marked impact on the...
Published in: | Earth and Planetary Science Letters |
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Language: | English |
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2014
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ftuniaarhuspubl:oai:pure.atira.dk:publications/f1af6ae4-c0f6-482b-9f1d-bb596440e1eb 2023-10-29T02:34:27+01:00 Labrador current variability over the last 2000 years Sicre, Marie-Alexandrine Weckström, Kaarina Seidenkrantz, Marit-Solveig Kuijpers, A. M., Benetti Massé, Guillaume Ezat, U. Schmidt, S. Bouloubassi, I. Olsen, Jesper Khodri, M. Mignot, J. 2014 https://pure.au.dk/portal/da/publications/labrador-current-variability-over-the-last-2000-years(f1af6ae4-c0f6-482b-9f1d-bb596440e1eb).html https://doi.org/10.1016/j.epsl.2014.05.016 eng eng info:eu-repo/semantics/restrictedAccess Sicre , M-A , Weckström , K , Seidenkrantz , M-S , Kuijpers , A , M. , B , Massé , G , Ezat , U , Schmidt , S , Bouloubassi , I , Olsen , J , Khodri , M & Mignot , J 2014 , ' Labrador current variability over the last 2000 years ' , Earth and Planetary Science Letters , vol. 400 , pp. 26-32 . https://doi.org/10.1016/j.epsl.2014.05.016 , https://doi.org/10.1016/j.epsl.2014.05.016 ocean variability temperature proxy last millennia Labrador Sea Newfoundland Northern Annular Mode NORTH-ATLANTIC OSCILLATION PAST 1500 YEARS LATE-HOLOCENE CLIMATE VARIABILITY DIATOM EVIDENCE WEST GREENLAND SEA MILLENNIUM ALKENONES RECORD article 2014 ftuniaarhuspubl https://doi.org/10.1016/j.epsl.2014.05.016 2023-10-04T22:58:25Z The ice-loaded Labrador Current (LC) is an important component of the western North Atlantic circulation that influences the position and strength of the northern limb of the North Atlantic Current (NAC). This flow of cold and fresh Polar Waters originating from the Arctic has a marked impact on the North Atlantic climate, yet little is known about its variability beyond the instrumental period. In this study, we present the first sub-decadal alkenone-based 2000-year long sea-surface temperature (SST) records from the western Labrador Sea, a climatically crucial region at the boundary between the LC and the NAC. Our results show a clear link between the LC strength and the Northern Annular Mode (NAM), with a stronger NAM and a more vigorous LC during the Medieval Climate Anomaly (MCA). This suggests enhanced LC activity upon future global warming with implications for the Atlantic meridional overturning circulation (AMOC). (C) 2014 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Arctic Global warming Greenland Greenland Sea Labrador Sea Newfoundland north atlantic current North Atlantic North Atlantic oscillation Aarhus University: Research Earth and Planetary Science Letters 400 26 32 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
ocean variability temperature proxy last millennia Labrador Sea Newfoundland Northern Annular Mode NORTH-ATLANTIC OSCILLATION PAST 1500 YEARS LATE-HOLOCENE CLIMATE VARIABILITY DIATOM EVIDENCE WEST GREENLAND SEA MILLENNIUM ALKENONES RECORD |
spellingShingle |
ocean variability temperature proxy last millennia Labrador Sea Newfoundland Northern Annular Mode NORTH-ATLANTIC OSCILLATION PAST 1500 YEARS LATE-HOLOCENE CLIMATE VARIABILITY DIATOM EVIDENCE WEST GREENLAND SEA MILLENNIUM ALKENONES RECORD Sicre, Marie-Alexandrine Weckström, Kaarina Seidenkrantz, Marit-Solveig Kuijpers, A. M., Benetti Massé, Guillaume Ezat, U. Schmidt, S. Bouloubassi, I. Olsen, Jesper Khodri, M. Mignot, J. Labrador current variability over the last 2000 years |
topic_facet |
ocean variability temperature proxy last millennia Labrador Sea Newfoundland Northern Annular Mode NORTH-ATLANTIC OSCILLATION PAST 1500 YEARS LATE-HOLOCENE CLIMATE VARIABILITY DIATOM EVIDENCE WEST GREENLAND SEA MILLENNIUM ALKENONES RECORD |
description |
The ice-loaded Labrador Current (LC) is an important component of the western North Atlantic circulation that influences the position and strength of the northern limb of the North Atlantic Current (NAC). This flow of cold and fresh Polar Waters originating from the Arctic has a marked impact on the North Atlantic climate, yet little is known about its variability beyond the instrumental period. In this study, we present the first sub-decadal alkenone-based 2000-year long sea-surface temperature (SST) records from the western Labrador Sea, a climatically crucial region at the boundary between the LC and the NAC. Our results show a clear link between the LC strength and the Northern Annular Mode (NAM), with a stronger NAM and a more vigorous LC during the Medieval Climate Anomaly (MCA). This suggests enhanced LC activity upon future global warming with implications for the Atlantic meridional overturning circulation (AMOC). (C) 2014 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Sicre, Marie-Alexandrine Weckström, Kaarina Seidenkrantz, Marit-Solveig Kuijpers, A. M., Benetti Massé, Guillaume Ezat, U. Schmidt, S. Bouloubassi, I. Olsen, Jesper Khodri, M. Mignot, J. |
author_facet |
Sicre, Marie-Alexandrine Weckström, Kaarina Seidenkrantz, Marit-Solveig Kuijpers, A. M., Benetti Massé, Guillaume Ezat, U. Schmidt, S. Bouloubassi, I. Olsen, Jesper Khodri, M. Mignot, J. |
author_sort |
Sicre, Marie-Alexandrine |
title |
Labrador current variability over the last 2000 years |
title_short |
Labrador current variability over the last 2000 years |
title_full |
Labrador current variability over the last 2000 years |
title_fullStr |
Labrador current variability over the last 2000 years |
title_full_unstemmed |
Labrador current variability over the last 2000 years |
title_sort |
labrador current variability over the last 2000 years |
publishDate |
2014 |
url |
https://pure.au.dk/portal/da/publications/labrador-current-variability-over-the-last-2000-years(f1af6ae4-c0f6-482b-9f1d-bb596440e1eb).html https://doi.org/10.1016/j.epsl.2014.05.016 |
genre |
Arctic Global warming Greenland Greenland Sea Labrador Sea Newfoundland north atlantic current North Atlantic North Atlantic oscillation |
genre_facet |
Arctic Global warming Greenland Greenland Sea Labrador Sea Newfoundland north atlantic current North Atlantic North Atlantic oscillation |
op_source |
Sicre , M-A , Weckström , K , Seidenkrantz , M-S , Kuijpers , A , M. , B , Massé , G , Ezat , U , Schmidt , S , Bouloubassi , I , Olsen , J , Khodri , M & Mignot , J 2014 , ' Labrador current variability over the last 2000 years ' , Earth and Planetary Science Letters , vol. 400 , pp. 26-32 . https://doi.org/10.1016/j.epsl.2014.05.016 , https://doi.org/10.1016/j.epsl.2014.05.016 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.epsl.2014.05.016 |
container_title |
Earth and Planetary Science Letters |
container_volume |
400 |
container_start_page |
26 |
op_container_end_page |
32 |
_version_ |
1781057045785477120 |