Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene
There is a converging body of evidence supporting a measurable slowdown of the Atlantic Meridional Overturning Circulation (AMOC) as climate warms and Northern Hemisphere ice sheets inexorably shrink. Within this context, we assess the variability of the AMOC during the Holocene based on a marine se...
Published in: | Geophysical Research Letters |
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ftsubggeo:oai:e-docs.geo-leo.de:11858/8798 2023-05-15T17:24:21+02:00 Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene Lippold, Jörg Pöppelmeier, Frerk Süfke, Finn Gutjahr, Marcus Goepfert, Tyler J. Blaser, Patrick Friedrich, Oliver Link, Jasmin M. Wacker, Lukas Rheinberger, Stefan Jaccard, Samuel L. 2019 https://doi.org/10.1029/2019GL084988 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8798 eng eng doi:10.1029/2019GL084988 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8798 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY ddc:551 AMOC Holocene high resolution 231Pa/230Th Bermuda Rise sensitivity tests doc-type:article 2019 ftsubggeo https://doi.org/10.1029/2019GL084988 2022-11-09T06:51:38Z There is a converging body of evidence supporting a measurable slowdown of the Atlantic Meridional Overturning Circulation (AMOC) as climate warms and Northern Hemisphere ice sheets inexorably shrink. Within this context, we assess the variability of the AMOC during the Holocene based on a marine sediment core retrieved from the deep northwest Atlantic, which sensitively recorded large-scale deglacial transitions in deep water circulation. While there is a diffuse notion of Holocene variability in Labrador and Nordic Seas overturning, we report a largely invariable deep water circulation for the last ~11,000 years, even during the meltwater pulse associated with the 8.2-ka event. Sensitivity tests along with high-resolution 231Pa/230Th data constrain the duration and the magnitude of possible Holocene AMOC variations. The generally constant baseline during the Holocene suggests attenuated natural variability of the large-scale AMOC on submillennial timescales and calls for compensating effects involving the upstream components of North Atlantic Deep Water. Article in Journal/Newspaper Nordic Seas North Atlantic Deep Water North Atlantic Northwest Atlantic GEO-LEOe-docs (FID GEO) Geophysical Research Letters 46 20 11338 11346 |
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Open Polar |
collection |
GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:551 AMOC Holocene high resolution 231Pa/230Th Bermuda Rise sensitivity tests |
spellingShingle |
ddc:551 AMOC Holocene high resolution 231Pa/230Th Bermuda Rise sensitivity tests Lippold, Jörg Pöppelmeier, Frerk Süfke, Finn Gutjahr, Marcus Goepfert, Tyler J. Blaser, Patrick Friedrich, Oliver Link, Jasmin M. Wacker, Lukas Rheinberger, Stefan Jaccard, Samuel L. Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene |
topic_facet |
ddc:551 AMOC Holocene high resolution 231Pa/230Th Bermuda Rise sensitivity tests |
description |
There is a converging body of evidence supporting a measurable slowdown of the Atlantic Meridional Overturning Circulation (AMOC) as climate warms and Northern Hemisphere ice sheets inexorably shrink. Within this context, we assess the variability of the AMOC during the Holocene based on a marine sediment core retrieved from the deep northwest Atlantic, which sensitively recorded large-scale deglacial transitions in deep water circulation. While there is a diffuse notion of Holocene variability in Labrador and Nordic Seas overturning, we report a largely invariable deep water circulation for the last ~11,000 years, even during the meltwater pulse associated with the 8.2-ka event. Sensitivity tests along with high-resolution 231Pa/230Th data constrain the duration and the magnitude of possible Holocene AMOC variations. The generally constant baseline during the Holocene suggests attenuated natural variability of the large-scale AMOC on submillennial timescales and calls for compensating effects involving the upstream components of North Atlantic Deep Water. |
format |
Article in Journal/Newspaper |
author |
Lippold, Jörg Pöppelmeier, Frerk Süfke, Finn Gutjahr, Marcus Goepfert, Tyler J. Blaser, Patrick Friedrich, Oliver Link, Jasmin M. Wacker, Lukas Rheinberger, Stefan Jaccard, Samuel L. |
author_facet |
Lippold, Jörg Pöppelmeier, Frerk Süfke, Finn Gutjahr, Marcus Goepfert, Tyler J. Blaser, Patrick Friedrich, Oliver Link, Jasmin M. Wacker, Lukas Rheinberger, Stefan Jaccard, Samuel L. |
author_sort |
Lippold, Jörg |
title |
Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene |
title_short |
Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene |
title_full |
Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene |
title_fullStr |
Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene |
title_full_unstemmed |
Constraining the Variability of the Atlantic Meridional Overturning Circulation During the Holocene |
title_sort |
constraining the variability of the atlantic meridional overturning circulation during the holocene |
publishDate |
2019 |
url |
https://doi.org/10.1029/2019GL084988 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8798 |
genre |
Nordic Seas North Atlantic Deep Water North Atlantic Northwest Atlantic |
genre_facet |
Nordic Seas North Atlantic Deep Water North Atlantic Northwest Atlantic |
op_relation |
doi:10.1029/2019GL084988 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8798 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2019GL084988 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
20 |
container_start_page |
11338 |
op_container_end_page |
11346 |
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1766115317923184640 |