Numerical analysis of the primary processes controlling oxygen dynamics on the Louisiana shelf

Yu, L.; Fennel, K.; Laurent, A.; Murrell, M. C.; Lehrter, J. C.

doi:https://doi.org/10.5194/bg-12-2063-2015

Articles | Volume 12, issue 7

https://doi.org/10.5194/bg-12-2063-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Low oxygen environments in marine, fresh and estuarine...

https://doi.org/10.5194/bg-12-2063-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 7

Research article

|

02 Apr 2015

Research article |

| 02 Apr 2015

Numerical analysis of the primary processes controlling oxygen dynamics on the Louisiana shelf

L. Yu, K. Fennel, A. Laurent, M. C. Murrell, and J. C. Lehrter

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Final revised paper (published on 02 Apr 2015)
Supplement to the final revised paper
Preprint (discussion started on 22 Oct 2014)
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Interactive discussion

Status: closed

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

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RC C6961: 'Comments on "Numerical analysis of the primary processes controlling oxygen dynamics on the Louisiana Shelf"', Anonymous Referee #1, 24 Nov 2014
- AC C8359: 'Response to Reviewer 1', Liuqian Yu, 29 Jan 2015
RC C7209: 'Interactive comment on “Numerical analysis of the primary processes controlling oxygen dynamics on the Louisiana Shelf” by L. Yu et al.', Anonymous Referee #2, 08 Dec 2014
- AC C8360: 'Response to Reviewer 2', Liuqian Yu, 29 Jan 2015

Peer-review completion

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

AR by Liuqian Yu on behalf of the Authors (30 Jan 2015) Author's response Manuscript

ED: Referee Nomination & Report Request started (10 Feb 2015) by Marilaure Grégoire

RR by Anonymous Referee #2 (25 Feb 2015)

ED: Publish subject to technical corrections (09 Mar 2015) by Marilaure Grégoire

AR by Liuqian Yu on behalf of the Authors (13 Mar 2015) Author's response Manuscript

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Short summary

Our study suggests that a combination of physical processes and sediment oxygen consumption determine the spatial extent and temporal dynamics of hypoxia on the Louisiana shelf. In summer, stratification isolates oxygen-rich surface waters from hypoxic bottom waters; oxygen outgasses to the atmosphere at this time. A large fraction of primary production occurs below the pycnocline in summer, but this primary production does not strongly affect the spatial extent of hypoxic bottom waters.