Articles | Volume 8, issue 10
Development and technical paper
06 Oct 2015
Development and technical paper |  | 06 Oct 2015

Increasing vertical mixing to reduce Southern Ocean deep convection in NEMO3.4

C. Heuzé, J. K. Ridley, D. Calvert, D. P. Stevens, and K. J. Heywood


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Céline Heuzé on behalf of the Authors (17 Jul 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (21 Jul 2015) by Robert Marsh
RR by Anonymous Referee #2 (31 Jul 2015)
ED: Publish subject to minor revisions (Editor review) (09 Aug 2015) by Robert Marsh
AR by Céline Heuzé on behalf of the Authors (15 Sep 2015)  Author's response
ED: Publish as is (27 Sep 2015) by Robert Marsh
Short summary
Most ocean models, including NEMO, have unrealistic Southern Ocean deep convection. That is, through extensive areas of the Southern Ocean, they exhibit convection from the surface of the ocean to the sea floor. We find this convection to be an issue as it impacts the whole ocean circulation, notably strengthening the Antarctic Circumpolar Current. Using sensitivity experiments, we show that counter-intuitively the vertical mixing needs to be enhanced to reduce this spurious convection.