(Figure 2) Proxy records of sediment core GeoB6007-2 ...
Central waters of the North Atlantic are fundamental for ventilation of the upper ocean and are also linked to the strength of the Atlantic Meridional Overturning Circulation (AMOC). Here, we show based on benthic foraminiferal Mg/Ca ratios, that during times of enhanced melting from the Laurentide...
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ftdatacite:10.1594/pangaea.745950 2023-10-01T03:56:41+02:00 (Figure 2) Proxy records of sediment core GeoB6007-2 ... Bamberg, Audrey Rosenthal, Yair Paul, André Heslop, David Mulitza, Stefan Rühlemann, Carsten Schulz, Michael 2010 application/zip https://dx.doi.org/10.1594/pangaea.745950 https://doi.pangaea.de/10.1594/PANGAEA.745950 en eng PANGAEA https://dx.doi.org/10.1029/2010gl043878 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Gravity corer Kiel type M45/5a Meteor 1986 Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover BGR Center for Marine Environmental Sciences MARUM Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Supplementary Publication Series of Datasets article Collection 2010 ftdatacite https://doi.org/10.1594/pangaea.74595010.1029/2010gl043878 2023-09-04T14:52:34Z Central waters of the North Atlantic are fundamental for ventilation of the upper ocean and are also linked to the strength of the Atlantic Meridional Overturning Circulation (AMOC). Here, we show based on benthic foraminiferal Mg/Ca ratios, that during times of enhanced melting from the Laurentide Ice Sheet (LIS) between 9.0-8.5 thousand years before present (ka) the production of central waters weakened the upper AMOC resulting in a cooling over the Northern Hemisphere. Centered at 8.54 ± 0.2 ka and 8.24 ± 0.1 ka our dataset records two ~150-year cooling events in response to the drainage of Lake Agassiz/Ojibway, indicating early slow-down of the upper AMOC in response to the initial freshwater flux into the subpolar gyre (SPG) followed by a more severe weakening of both the upper and lower branches of the AMOC at 8.2 ka. These results highlight the sensitivity of regional North Atlantic climate change to the strength of central-water overturning and exemplify the impact of both gradual and abrupt ... : Supplement to: Bamberg, Audrey; Rosenthal, Yair; Paul, André; Heslop, David; Mulitza, Stefan; Rühlemann, Carsten; Schulz, Michael (2010): Reduced North Atlantic Central Water formation in response to early Holocene ice-sheet melting. Geophysical Research Letters, 37, L17705 ... Article in Journal/Newspaper Ice Sheet North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Audrey ENVELOPE(-67.100,-67.100,-68.133,-68.133) Rosenthal ENVELOPE(-64.283,-64.283,-64.600,-64.600) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Gravity corer Kiel type M45/5a Meteor 1986 Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover BGR Center for Marine Environmental Sciences MARUM Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK |
spellingShingle |
Gravity corer Kiel type M45/5a Meteor 1986 Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover BGR Center for Marine Environmental Sciences MARUM Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Bamberg, Audrey Rosenthal, Yair Paul, André Heslop, David Mulitza, Stefan Rühlemann, Carsten Schulz, Michael (Figure 2) Proxy records of sediment core GeoB6007-2 ... |
topic_facet |
Gravity corer Kiel type M45/5a Meteor 1986 Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover BGR Center for Marine Environmental Sciences MARUM Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK |
description |
Central waters of the North Atlantic are fundamental for ventilation of the upper ocean and are also linked to the strength of the Atlantic Meridional Overturning Circulation (AMOC). Here, we show based on benthic foraminiferal Mg/Ca ratios, that during times of enhanced melting from the Laurentide Ice Sheet (LIS) between 9.0-8.5 thousand years before present (ka) the production of central waters weakened the upper AMOC resulting in a cooling over the Northern Hemisphere. Centered at 8.54 ± 0.2 ka and 8.24 ± 0.1 ka our dataset records two ~150-year cooling events in response to the drainage of Lake Agassiz/Ojibway, indicating early slow-down of the upper AMOC in response to the initial freshwater flux into the subpolar gyre (SPG) followed by a more severe weakening of both the upper and lower branches of the AMOC at 8.2 ka. These results highlight the sensitivity of regional North Atlantic climate change to the strength of central-water overturning and exemplify the impact of both gradual and abrupt ... : Supplement to: Bamberg, Audrey; Rosenthal, Yair; Paul, André; Heslop, David; Mulitza, Stefan; Rühlemann, Carsten; Schulz, Michael (2010): Reduced North Atlantic Central Water formation in response to early Holocene ice-sheet melting. Geophysical Research Letters, 37, L17705 ... |
format |
Article in Journal/Newspaper |
author |
Bamberg, Audrey Rosenthal, Yair Paul, André Heslop, David Mulitza, Stefan Rühlemann, Carsten Schulz, Michael |
author_facet |
Bamberg, Audrey Rosenthal, Yair Paul, André Heslop, David Mulitza, Stefan Rühlemann, Carsten Schulz, Michael |
author_sort |
Bamberg, Audrey |
title |
(Figure 2) Proxy records of sediment core GeoB6007-2 ... |
title_short |
(Figure 2) Proxy records of sediment core GeoB6007-2 ... |
title_full |
(Figure 2) Proxy records of sediment core GeoB6007-2 ... |
title_fullStr |
(Figure 2) Proxy records of sediment core GeoB6007-2 ... |
title_full_unstemmed |
(Figure 2) Proxy records of sediment core GeoB6007-2 ... |
title_sort |
(figure 2) proxy records of sediment core geob6007-2 ... |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://dx.doi.org/10.1594/pangaea.745950 https://doi.pangaea.de/10.1594/PANGAEA.745950 |
long_lat |
ENVELOPE(-67.100,-67.100,-68.133,-68.133) ENVELOPE(-64.283,-64.283,-64.600,-64.600) |
geographic |
Audrey Rosenthal |
geographic_facet |
Audrey Rosenthal |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_relation |
https://dx.doi.org/10.1029/2010gl043878 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.74595010.1029/2010gl043878 |
_version_ |
1778526750750277632 |