Articles | Volume 12, issue 2
https://doi.org/10.5194/bg-12-489-2015
https://doi.org/10.5194/bg-12-489-2015
Research article
 | 
27 Jan 2015
Research article |  | 27 Jan 2015

On the role of circulation and mixing in the ventilation of oxygen minimum zones with a focus on the eastern tropical North Atlantic

P. Brandt, H. W. Bange, D. Banyte, M. Dengler, S.-H. Didwischus, T. Fischer, R. J. Greatbatch, J. Hahn, T. Kanzow, J. Karstensen, A. Körtzinger, G. Krahmann, S. Schmidtko, L. Stramma, T. Tanhua, and M. Visbeck

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Peter Brandt on behalf of the Authors (14 Nov 2014)  Author's response
ED: Publish subject to minor revisions (Editor review) (29 Nov 2014) by Lisa Levin
AR by Peter Brandt on behalf of the Authors (08 Dec 2014)  Author's response    Manuscript
ED: Publish as is (16 Dec 2014) by Lisa Levin
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Short summary
Our observational study looks at the structure of the eastern tropical North Atlantic (ETNA) oxygen minimum zone (OMZ) in comparison with the less-ventilated, eastern tropical South Pacific OMZ. We quantify the OMZ’s oxygen budget composed of consumption, advection, lateral and vertical mixing. Substantial oxygen variability is observed on interannual to multidecadal timescales. The deoxygenation of the ETNA OMZ during the last decades represents a substantial imbalance of the oxygen budget.
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