A new intermittent regime of convective ventilation threatens the Black Sea oxygenation status

Capet, Arthur; Vandenbulcke, Luc; Grégoire, Marilaure

doi:https://doi.org/10.5194/bg-17-6507-2020

Articles | Volume 17, issue 24

https://doi.org/10.5194/bg-17-6507-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Ocean deoxygenation: drivers and consequences – past, present...

https://doi.org/10.5194/bg-17-6507-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 24

Research article

|

23 Dec 2020

Research article |

| 23 Dec 2020

A new intermittent regime of convective ventilation threatens the Black Sea oxygenation status

Arthur Capet, Luc Vandenbulcke, and Marilaure Grégoire

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Final revised paper (published on 23 Dec 2020)
Preprint (discussion started on 30 Mar 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Capet et al.', Fabian Große, 12 May 2020
- AC1: 'bg-2020-76 - Final response to reviewer comments (common document)', Arthur Capet, 17 Aug 2020
RC2: 'Review of "Climate change induced a new intermittent regime of convective ventilation that threatens the Black Sea oxygenation status"', Anonymous Referee #2, 29 May 2020
- AC1: 'bg-2020-76 - Final response to reviewer comments (common document)', Arthur Capet, 17 Aug 2020
RC3: 'BG-2020-76', James W. Murray, 05 Jun 2020
- AC1: 'bg-2020-76 - Final response to reviewer comments (common document)', Arthur Capet, 17 Aug 2020
RC4: 'Reviewers Comments', Michael Dowd, 06 Jun 2020
- AC1: 'bg-2020-76 - Final response to reviewer comments (common document)', Arthur Capet, 17 Aug 2020

Peer-review completion

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

ED: Reconsider after major revisions (19 Aug 2020) by Katja Fennel

ED: Reconsider after major revisions (19 Aug 2020) by Katja Fennel (Co-editor-in-chief)

AR by Arthur Capet on behalf of the Authors (24 Sep 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (05 Oct 2020) by Katja Fennel

RR by Fabian Große (25 Oct 2020)

ED: Publish subject to minor revisions (review by editor) (27 Oct 2020) by Katja Fennel

ED: Publish subject to minor revisions (review by editor) (30 Oct 2020) by Katja Fennel (Co-editor-in-chief)

AR by Arthur Capet on behalf of the Authors (13 Nov 2020) Author's response Manuscript

ED: Publish as is (16 Nov 2020) by Katja Fennel

ED: Publish as is (16 Nov 2020) by Katja Fennel (Co-editor-in-chief)

AR by Arthur Capet on behalf of the Authors (17 Nov 2020)

Short summary

The Black Sea is 2000 m deep, but, due to limited ventilation, only about the upper 100 m contains enough oxygen to support marine life such as fish. This oxygenation depth has been shown to be decreasing (1955–2019). Here, we evidence that atmospheric warming induced a clear shift in an important ventilation mechanism. We highlight the impact of this shift on oxygenation. There are important implications for marine life and carbon and nutrient cycling if this new ventilation regime persists.