Articles | Volume 13, issue 1
Biogeosciences, 13, 211–221, 2016
https://doi.org/10.5194/bg-13-211-2016

Special issue: Low oxygen environments in marine, fresh and estuarine...

Biogeosciences, 13, 211–221, 2016
https://doi.org/10.5194/bg-13-211-2016

Research article 15 Jan 2016

Research article | 15 Jan 2016

Millennial changes in North Atlantic oxygen concentrations

B. A. A. Hoogakker et al.

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Cited articles

Anderson, R. S., Ali, S., Bradtmiller, L. I., Nielsen, S. H. H., Fleisher, M. Q., Anderson, B. E., Burckle, L. H.: Wind-driven upwelling in the Southern Ocean and the deglacial rise in atmospheric CO2, Science, 323, 1443–1448, 2009.
Barker, S. and Diz, P.: Timing of the descent into the last Ice Age determined by bipolar seesaw, Paleoceanography, 29, 489–507, 2014.
Bassinot, F. C. and Labeyrie, L. D.: Shipboard Scientific Party: IMAGES MD101 Brest-Marseille 29/05/95–11/07/95 – A coring cruise of the R∕V Marion Dufresne in the North Atlantic Ocean and Norwegian Sea, Les rapports de campagnes à la mer, lnstitut Français pour la Recherche et la Technologie Polaires, Technopole de Brest-lroise, BP75-29280 Plouzane, Francee de Brest-lroise, BP 75, 29280 Plouzane, France, 96, 218 pp., 1996.
Bereiter, B., Lüthia, D., Siegrista, M., Schüpbacha, S., Stocker, T. F., and Fischer, H.: Mode change of millennial CO2 variability during the last glacial cycle associated with a bipolar marine carbon seesaw, P. Natl. Acad. Sci. USA, 109, 9755–9760, 2012.
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Models predict a decrease in future ocean O2, driven by surface water warming and freshening in the polar regions, causing a reduction in ocean circulation. Here we assess this effect in the past, focussing on the response of deep and intermediate waters from the North Atlantic during large-scale ice rafting and millennial-scale cooling events of the last glacial. Our assessment agrees with the models but also highlights the importance of biological processes driving ocean O2 change.
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