Decadal oxygen change in the eastern tropical North Atlantic

Hahn, Johannes; Brandt, Peter; Schmidtko, Sunke; Krahmann, Gerd

doi:https://doi.org/10.5194/os-13-551-2017

Articles | Volume 13, issue 4

https://doi.org/10.5194/os-13-551-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/os-13-551-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 4

Research article

|

06 Jul 2017

Research article |

| 06 Jul 2017

Decadal oxygen change in the eastern tropical North Atlantic

Johannes Hahn, Peter Brandt, Sunke Schmidtko, and Gerd Krahmann

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Final revised paper (published on 06 Jul 2017)
Preprint (discussion started on 10 Jan 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review of the manuscript os-2016-102', Anonymous Referee #1, 13 Feb 2017
RC2: 'Review for Hahn et al. "Decadal oxygen change in the eastern tropical North Atlantic"', Anonymous Referee #2, 03 Mar 2017
AC1: 'Authors' Final Response', Johannes Hahn, 23 May 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Johannes Hahn on behalf of the Authors (24 May 2017) Author's response Manuscript

ED: Publish subject to technical corrections (29 May 2017) by Mario Hoppema

Short summary

Recent studies have shown that the eastern tropical North Atlantic is subject to a strong decrease of the oceanic oxygen concentration in the upper 1000 m from the 1960s to today. By analyzing a broad observational data set, this study found an even stronger oxygen decrease in the upper 400 m throughout the past decade, whereas oxygen increase was found below (400–1000 m). Changes in the strength of the zonal currents are the most likely reason for the observed decadal oxygen changes.