Articles | Volume 11, issue 2
Clim. Past, 11, 135–152, 2015
https://doi.org/10.5194/cp-11-135-2015
Clim. Past, 11, 135–152, 2015
https://doi.org/10.5194/cp-11-135-2015

Research article 05 Feb 2015

Research article | 05 Feb 2015

Early deglacial Atlantic overturning decline and its role in atmospheric CO2 rise inferred from carbon isotopes (δ13C)

A. Schmittner and D. C. Lund

Related authors

Evaluation of the University of Victoria Earth System Climate Model version 2.10 (UVic ESCM 2.10)
Nadine Mengis, David P. Keller, Andrew H. MacDougall, Michael Eby, Nesha Wright, Katrin J. Meissner, Andreas Oschlies, Andreas Schmittner, Alexander J. MacIsaac, H. Damon Matthews, and Kirsten Zickfeld
Geosci. Model Dev., 13, 4183–4204, https://doi.org/10.5194/gmd-13-4183-2020,https://doi.org/10.5194/gmd-13-4183-2020, 2020
Short summary
A cloud feedback emulator (CFE, version 1.0) for an intermediate complexity model
David J. Ullman and Andreas Schmittner
Geosci. Model Dev., 10, 945–958, https://doi.org/10.5194/gmd-10-945-2017,https://doi.org/10.5194/gmd-10-945-2017, 2017
Short summary
AMOC-emulator M-AMOC1.0 for uncertainty assessment of future projections
Pepijn Bakker and Andreas Schmittner
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2016-79,https://doi.org/10.5194/gmd-2016-79, 2016
Revised manuscript not accepted
Short summary
Explicit planktic calcifiers in the University of Victoria Earth System Climate Model
K. F. Kvale, K. J. Meissner, D. P. Keller, M. Eby, and A. Schmittner
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmdd-7-1709-2014,https://doi.org/10.5194/gmdd-7-1709-2014, 2014
Revised manuscript not accepted
An improved parameterization of tidal mixing for ocean models
A. Schmittner and G. D. Egbert
Geosci. Model Dev., 7, 211–224, https://doi.org/10.5194/gmd-7-211-2014,https://doi.org/10.5194/gmd-7-211-2014, 2014

Related subject area

Subject: Ocean Dynamics | Archive: Marine Archives | Timescale: Millenial/D-O
Plateaus and jumps in the atmospheric radiocarbon record – potential origin and value as global age markers for glacial-to-deglacial paleoceanography, a synthesis
Michael Sarnthein, Kevin Küssner, Pieter M. Grootes, Blanca Ausin, Timothy Eglinton, Juan Muglia, Raimund Muscheler, and Gordon Schlolaut
Clim. Past, 16, 2547–2571, https://doi.org/10.5194/cp-16-2547-2020,https://doi.org/10.5194/cp-16-2547-2020, 2020
Short summary
Millennial-scale variations in sedimentary oxygenation in the western subtropical North Pacific and its links to North Atlantic climate
Jianjun Zou, Xuefa Shi, Aimei Zhu, Selvaraj Kandasamy, Xun Gong, Lester Lembke-Jene, Min-Te Chen, Yonghua Wu, Shulan Ge, Yanguang Liu, Xinru Xue, Gerrit Lohmann, and Ralf Tiedemann
Clim. Past, 16, 387–407, https://doi.org/10.5194/cp-16-387-2020,https://doi.org/10.5194/cp-16-387-2020, 2020
Short summary
Relative timing of precipitation and ocean circulation changes in the western equatorial Atlantic over the last 45 kyr
Claire Waelbroeck, Sylvain Pichat, Evelyn Böhm, Bryan C. Lougheed, Davide Faranda, Mathieu Vrac, Lise Missiaen, Natalia Vazquez Riveiros, Pierre Burckel, Jörg Lippold, Helge W. Arz, Trond Dokken, François Thil, and Arnaud Dapoigny
Clim. Past, 14, 1315–1330, https://doi.org/10.5194/cp-14-1315-2018,https://doi.org/10.5194/cp-14-1315-2018, 2018
Short summary
Regional seesaw between the North Atlantic and Nordic Seas during the last glacial abrupt climate events
Mélanie Wary, Frédérique Eynaud, Didier Swingedouw, Valérie Masson-Delmotte, Jens Matthiessen, Catherine Kissel, Jena Zumaque, Linda Rossignol, and Jean Jouzel
Clim. Past, 13, 729–739, https://doi.org/10.5194/cp-13-729-2017,https://doi.org/10.5194/cp-13-729-2017, 2017
Short summary
Changes in the geometry and strength of the Atlantic meridional overturning circulation during the last glacial (20–50 ka)
Pierre Burckel, Claire Waelbroeck, Yiming Luo, Didier M. Roche, Sylvain Pichat, Samuel L. Jaccard, Jeanne Gherardi, Aline Govin, Jörg Lippold, and François Thil
Clim. Past, 12, 2061–2075, https://doi.org/10.5194/cp-12-2061-2016,https://doi.org/10.5194/cp-12-2061-2016, 2016
Short summary

Cited articles

Anderson, R. and Hayes, C.: New insights into gochemical proxies from GEOTRACES, 11th International Conference on Paleoceanography, Sitges, Spain, 2013.
Anderson, R. F., Ali, S., Bradtmiller, L. I., Nielsen, S. H. H., Fleisher, M. Q., Anderson, B. E., and Burckle, L. H.: Wind-driven upwelling in the Southern Ocean and the deglacial rise in atmospheric CO2, Science, 323, 1443–1448, 2009.
Bard, E., Rostek, F., Turon, J-L., and Gendreau, S.: Hydrological impact of Heinrich Events in the subtropical northeast Atlantic, Science, 289, 1321–1324, 2010.
Benway, H. M., McManus, J. F., Oppo, D. W., and Cullen, J. L.: Hydrographic changes in the eastern sub polar North Atlantic during the last deglaciation, Quaternary Sci. Rev., 29, 3336–3345, 2010.
Blunier, T., Chappellaz, J., Schwander, J., Dällenbach, A., Staffer, B., Stocker, T. F., Raynaud, D., Jouzel, J., Clausen, H. B., Hammer, C. U., and Johnsen, S. J.: Asynchrony of Antarctic and Greenland climate change during the last glacial period, Nature, 394, 739–743, 1998.
Download
Short summary
Model simulations of carbon isotope changes as a result of a reduction in the Atlantic Meridional Overturning Circulation (AMOC) agree well with sediment data from the early last deglaciation, supporting the idea that the AMOC was substantially reduced during that time period of global warming. We hypothesize, and present supporting evidence, that changes in the AMOC may have caused the coeval rise in atmospheric CO2, owing to a reduction in the efficiency of the ocean's biological pump.