Articles | Volume 12, issue 11
https://doi.org/10.5194/cp-12-2061-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-12-2061-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
08 Nov 2016
Research article |
| 08 Nov 2016
Changes in the geometry and strength of the Atlantic meridional overturning circulation during the last glacial (20–50 ka)
Pierre Burckel
CORRESPONDING AUTHOR
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,
CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Institut de Physique du Globe de Paris, Université Sorbonne Paris
Cité, 75238 Paris, France
Claire Waelbroeck
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,
CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Yiming Luo
Dalhousie University, Department of Oceanography, 1355 Oxford Street,
P.O. BOX 15000, Halifax, NS B3H 4J1, Canada
Didier M. Roche
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,
CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Department of Earth Sciences, Earth and Climate Cluster, Faculty of
Earth and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, the
Netherlands
Sylvain Pichat
Laboratoire de Géologie de Lyon (LGL-TPE), Ecole Normale
Supérieure de Lyon, 46 allée d'Italie, 69007 Lyon, France
Samuel L. Jaccard
Institute of Geological Sciences and Oeschger Centre for Climate
Change Research, University of Bern, Baltzerstr. 1 & 3, 3012, Bern,
Switzerland
Jeanne Gherardi
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,
CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Aline Govin
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,
CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Jörg Lippold
Institute of Geological Sciences and Oeschger Centre for Climate
Change Research, University of Bern, Baltzerstr. 1 & 3, 3012, Bern,
Switzerland
François Thil
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,
CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
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Cited
22 citations as recorded by crossref.
- Linking Glacial‐Interglacial States to Multiple Equilibria of Climate D. Ferreira et al. 10.1029/2018GL077019
- Constraints on the Northwestern Atlantic Deep Water Circulation From 231Pa/230Th During the Last 30,000 Years F. Süfke et al. 10.1029/2019PA003737
- Modelling the impact of biogenic particle flux intensity and composition on sedimentary Pa/Th L. Missiaen et al. 10.1016/j.quascirev.2020.106394
- The Atlantic Meridional Overturning Circulation and Abrupt Climate Change J. Lynch-Stieglitz 10.1146/annurev-marine-010816-060415
- The simulated climate of the Last Glacial Maximum and insights into the global marine carbon cycle P. Buchanan et al. 10.5194/cp-12-2271-2016
- 230Th Normalization: New Insights on an Essential Tool for Quantifying Sedimentary Fluxes in the Modern and Quaternary Ocean K. Costa et al. 10.1029/2019PA003820
- Downcore Variations of Sedimentary Detrital (238U/232Th) Ratio: Implications on the Use of 230Thxs and 231Paxs to Reconstruct Sediment Flux and Ocean Circulation L. Missiaen et al. 10.1029/2017GC007410
- A global scavenging and circulation ocean model of thorium-230 and protactinium-231 with improved particle dynamics (NEMO–ProThorP 0.1) M. van Hulten et al. 10.5194/gmd-11-3537-2018
- Milankovitch theory and monsoon H. Cheng et al. 10.1016/j.xinn.2022.100338
- Onset and termination of Heinrich Stadial 4 and the underlying climate dynamics H. Cheng et al. 10.1038/s43247-021-00304-6
- Stability of the Atlantic Meridional Overturning Circulation: A Review and Synthesis W. Weijer et al. 10.1029/2019JC015083
- Deglacial patterns of South Pacific overturning inferred from 231Pa and 230Th T. Ronge et al. 10.1038/s41598-021-00111-1
- Reinterpretation of oceanic 230Th profiles based on decadal export productivity (2003–2010) Y. Luo 10.1038/s41598-017-00604-y
- <sup>231</sup>Pa and <sup>230</sup>Th in the ocean model of the Community Earth System Model (CESM1.3) S. Gu & Z. Liu 10.5194/gmd-10-4723-2017
- Evaluating the biological pump efficiency of the Last Glacial Maximum ocean using <i>δ</i><sup>13</sup>C A. Morée et al. 10.5194/cp-17-753-2021
- Enhanced vertical mixing in the glacial ocean inferred from sedimentary carbon isotopes S. Wilmes et al. 10.1038/s43247-021-00239-y
- The influence of deep water circulation on the distribution of 231Pa and 230Th in the Pacific Ocean Y. Luo et al. 10.1016/j.epsl.2020.116674
- Large Changes in Sea Ice Triggered by Small Changes in Atlantic Water Temperature M. Jensen et al. 10.1175/JCLI-D-17-0802.1
- Consistently dated Atlantic sediment cores over the last 40 thousand years C. Waelbroeck et al. 10.1038/s41597-019-0173-8
- Carbon isotopes and Pa∕Th response to forced circulation changes: a model perspective L. Missiaen et al. 10.5194/cp-16-867-2020
- Glacial-to-deglacial changes in North Atlantic meltwater advection and deep-water formation – Centennial-to-millennial-scale 14C records from the Azores plateau S. Balmer & M. Sarnthein 10.1016/j.gca.2018.03.001
- Inverse response of 231Pa/230Th to variations of the Atlantic meridional overturning circulation in the North Atlantic intermediate water F. Süfke et al. 10.1007/s00367-019-00634-7
22 citations as recorded by crossref.
- Linking Glacial‐Interglacial States to Multiple Equilibria of Climate D. Ferreira et al. 10.1029/2018GL077019
- Constraints on the Northwestern Atlantic Deep Water Circulation From 231Pa/230Th During the Last 30,000 Years F. Süfke et al. 10.1029/2019PA003737
- Modelling the impact of biogenic particle flux intensity and composition on sedimentary Pa/Th L. Missiaen et al. 10.1016/j.quascirev.2020.106394
- The Atlantic Meridional Overturning Circulation and Abrupt Climate Change J. Lynch-Stieglitz 10.1146/annurev-marine-010816-060415
- The simulated climate of the Last Glacial Maximum and insights into the global marine carbon cycle P. Buchanan et al. 10.5194/cp-12-2271-2016
- 230Th Normalization: New Insights on an Essential Tool for Quantifying Sedimentary Fluxes in the Modern and Quaternary Ocean K. Costa et al. 10.1029/2019PA003820
- Downcore Variations of Sedimentary Detrital (238U/232Th) Ratio: Implications on the Use of 230Thxs and 231Paxs to Reconstruct Sediment Flux and Ocean Circulation L. Missiaen et al. 10.1029/2017GC007410
- A global scavenging and circulation ocean model of thorium-230 and protactinium-231 with improved particle dynamics (NEMO–ProThorP 0.1) M. van Hulten et al. 10.5194/gmd-11-3537-2018
- Milankovitch theory and monsoon H. Cheng et al. 10.1016/j.xinn.2022.100338
- Onset and termination of Heinrich Stadial 4 and the underlying climate dynamics H. Cheng et al. 10.1038/s43247-021-00304-6
- Stability of the Atlantic Meridional Overturning Circulation: A Review and Synthesis W. Weijer et al. 10.1029/2019JC015083
- Deglacial patterns of South Pacific overturning inferred from 231Pa and 230Th T. Ronge et al. 10.1038/s41598-021-00111-1
- Reinterpretation of oceanic 230Th profiles based on decadal export productivity (2003–2010) Y. Luo 10.1038/s41598-017-00604-y
- <sup>231</sup>Pa and <sup>230</sup>Th in the ocean model of the Community Earth System Model (CESM1.3) S. Gu & Z. Liu 10.5194/gmd-10-4723-2017
- Evaluating the biological pump efficiency of the Last Glacial Maximum ocean using <i>δ</i><sup>13</sup>C A. Morée et al. 10.5194/cp-17-753-2021
- Enhanced vertical mixing in the glacial ocean inferred from sedimentary carbon isotopes S. Wilmes et al. 10.1038/s43247-021-00239-y
- The influence of deep water circulation on the distribution of 231Pa and 230Th in the Pacific Ocean Y. Luo et al. 10.1016/j.epsl.2020.116674
- Large Changes in Sea Ice Triggered by Small Changes in Atlantic Water Temperature M. Jensen et al. 10.1175/JCLI-D-17-0802.1
- Consistently dated Atlantic sediment cores over the last 40 thousand years C. Waelbroeck et al. 10.1038/s41597-019-0173-8
- Carbon isotopes and Pa∕Th response to forced circulation changes: a model perspective L. Missiaen et al. 10.5194/cp-16-867-2020
- Glacial-to-deglacial changes in North Atlantic meltwater advection and deep-water formation – Centennial-to-millennial-scale 14C records from the Azores plateau S. Balmer & M. Sarnthein 10.1016/j.gca.2018.03.001
- Inverse response of 231Pa/230Th to variations of the Atlantic meridional overturning circulation in the North Atlantic intermediate water F. Süfke et al. 10.1007/s00367-019-00634-7
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Discussed (final revised paper)
Latest update: 14 Dec 2024
Short summary
In this paper, we compare new and published Atlantic sedimentary Pa/Th data with Pa/Th simulated using stream functions generated under various climatic conditions. We show that during Greenland interstadials of the 20–50 ka period, the Atlantic meridional overturning circulation was very different from that of the Holocene. Moreover, southern-sourced waters dominated the Atlantic during Heinrich stadial 2, a slow northern-sourced water mass flowing above 2500 m in the North Atlantic.
In this paper, we compare new and published Atlantic sedimentary Pa/Th data with Pa/Th simulated...
