Articles | Volume 8, issue 10
https://doi.org/10.5194/gmd-8-3119-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/gmd-8-3119-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
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
Centre for Ocean and Atmospheric Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
Met Office, Hadley Centre, Exeter, EX1 3PB, UK
now at: Department of Marine Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
J. K. Ridley
Met Office, Hadley Centre, Exeter, EX1 3PB, UK
D. Calvert
Met Office, Hadley Centre, Exeter, EX1 3PB, UK
D. P. Stevens
Centre for Ocean and Atmospheric Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
K. J. Heywood
Centre for Ocean and Atmospheric Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
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Cited
24 citations as recorded by crossref.
- Spaceborne infrared imagery for early detection of Weddell Polynya opening C. Heuzé et al. 10.5194/tc-15-3401-2021
- On deep convection events and Antarctic Bottom Water formation in ocean reanalysis products W. Aguiar et al. 10.5194/os-13-851-2017
- Intercomparison of Antarctic ice-shelf, ocean, and sea-ice interactions simulated by MetROMS-iceshelf and FESOM 1.4 K. Naughten et al. 10.5194/gmd-11-1257-2018
- UK Global Ocean GO6 and GO7: a traceable hierarchy of model resolutions D. Storkey et al. 10.5194/gmd-11-3187-2018
- Feedbacks Driving Interdecadal Variability in Southern Ocean Convection in Climate Models: A Coupled Oscillator Mechanism A. Gnanadesikan et al. 10.1175/JPO-D-20-0037.1
- ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions A. Kiss et al. 10.5194/gmd-13-401-2020
- Model‐Derived Uncertainties in Deep Ocean Temperature Trends Between 1990 and 2010 F. Garry et al. 10.1029/2018JC014225
- Max Planck Institute Earth System Model (MPI-ESM1.2) for the High-Resolution Model Intercomparison Project (HighResMIP) O. Gutjahr et al. 10.5194/gmd-12-3241-2019
- Copernicus Marine Service Ocean State Report, Issue 3 K. von Schuckmann et al. 10.1080/1755876X.2019.1633075
- On warm bias and mesoscale dynamics setting the Southern Ocean large-scale circulation mean state M. Zeller & T. Martin 10.1016/j.ocemod.2024.102426
- Human-induced changes to the global ocean water masses and their time of emergence Y. Silvy et al. 10.1038/s41558-020-0878-x
- Antarctic offshore polynyas linked to Southern Hemisphere climate anomalies E. Campbell et al. 10.1038/s41586-019-1294-0
- Preconditioning of the Weddell Sea Polynya by the Ocean Mesoscale and Dense Water Overflows C. Dufour et al. 10.1175/JCLI-D-16-0586.1
- The Transient Response of the Southern Ocean to Stratospheric Ozone Depletion W. Seviour et al. 10.1175/JCLI-D-16-0198.1
- Southern Ocean deep convection in global climate models: A driver for variability of subpolar gyres and Drake Passage transport on decadal timescales E. Behrens et al. 10.1002/2015JC011286
- Comparison of ocean vertical mixing schemes in the Max Planck Institute Earth System Model (MPI-ESM1.2) O. Gutjahr et al. 10.5194/gmd-14-2317-2021
- Impact of ocean vertical-mixing parameterization on Arctic sea ice and upper-ocean properties using the NEMO-SI3 model S. Allende et al. 10.5194/gmd-17-7445-2024
- Weddell Polynya Transport Mechanisms in the Abyssal Ocean H. Zanowski & R. Hallberg 10.1175/JPO-D-17-0091.1
- Southern Ocean polynyas in CMIP6 models M. Mohrmann et al. 10.5194/tc-15-4281-2021
- Early Winter Triggering of the Maud Rise Polynya L. Zhou et al. 10.1029/2021GL096246
- Turbulent diapycnal fluxes as a pilot Essential Ocean Variable A. Le Boyer et al. 10.3389/fmars.2023.1241023
- Internal Ocean Dynamics Control the Long-Term Evolution of Weddell Sea Polynya Activity J. Rheinlænder et al. 10.3389/fclim.2021.718016
- Modeling the Influence of the Weddell Polynya on the Filchner–Ronne Ice Shelf Cavity K. Naughten et al. 10.1175/JCLI-D-19-0203.1
- Development of Coupled Data Assimilation With the BCC Climate System Model: Highlighting the Role of Sea‐Ice Assimilation for Global Analysis X. Liu et al. 10.1029/2020MS002368
23 citations as recorded by crossref.
- Spaceborne infrared imagery for early detection of Weddell Polynya opening C. Heuzé et al. 10.5194/tc-15-3401-2021
- On deep convection events and Antarctic Bottom Water formation in ocean reanalysis products W. Aguiar et al. 10.5194/os-13-851-2017
- Intercomparison of Antarctic ice-shelf, ocean, and sea-ice interactions simulated by MetROMS-iceshelf and FESOM 1.4 K. Naughten et al. 10.5194/gmd-11-1257-2018
- UK Global Ocean GO6 and GO7: a traceable hierarchy of model resolutions D. Storkey et al. 10.5194/gmd-11-3187-2018
- Feedbacks Driving Interdecadal Variability in Southern Ocean Convection in Climate Models: A Coupled Oscillator Mechanism A. Gnanadesikan et al. 10.1175/JPO-D-20-0037.1
- ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions A. Kiss et al. 10.5194/gmd-13-401-2020
- Model‐Derived Uncertainties in Deep Ocean Temperature Trends Between 1990 and 2010 F. Garry et al. 10.1029/2018JC014225
- Max Planck Institute Earth System Model (MPI-ESM1.2) for the High-Resolution Model Intercomparison Project (HighResMIP) O. Gutjahr et al. 10.5194/gmd-12-3241-2019
- Copernicus Marine Service Ocean State Report, Issue 3 K. von Schuckmann et al. 10.1080/1755876X.2019.1633075
- On warm bias and mesoscale dynamics setting the Southern Ocean large-scale circulation mean state M. Zeller & T. Martin 10.1016/j.ocemod.2024.102426
- Human-induced changes to the global ocean water masses and their time of emergence Y. Silvy et al. 10.1038/s41558-020-0878-x
- Antarctic offshore polynyas linked to Southern Hemisphere climate anomalies E. Campbell et al. 10.1038/s41586-019-1294-0
- Preconditioning of the Weddell Sea Polynya by the Ocean Mesoscale and Dense Water Overflows C. Dufour et al. 10.1175/JCLI-D-16-0586.1
- The Transient Response of the Southern Ocean to Stratospheric Ozone Depletion W. Seviour et al. 10.1175/JCLI-D-16-0198.1
- Southern Ocean deep convection in global climate models: A driver for variability of subpolar gyres and Drake Passage transport on decadal timescales E. Behrens et al. 10.1002/2015JC011286
- Comparison of ocean vertical mixing schemes in the Max Planck Institute Earth System Model (MPI-ESM1.2) O. Gutjahr et al. 10.5194/gmd-14-2317-2021
- Impact of ocean vertical-mixing parameterization on Arctic sea ice and upper-ocean properties using the NEMO-SI3 model S. Allende et al. 10.5194/gmd-17-7445-2024
- Weddell Polynya Transport Mechanisms in the Abyssal Ocean H. Zanowski & R. Hallberg 10.1175/JPO-D-17-0091.1
- Southern Ocean polynyas in CMIP6 models M. Mohrmann et al. 10.5194/tc-15-4281-2021
- Early Winter Triggering of the Maud Rise Polynya L. Zhou et al. 10.1029/2021GL096246
- Turbulent diapycnal fluxes as a pilot Essential Ocean Variable A. Le Boyer et al. 10.3389/fmars.2023.1241023
- Internal Ocean Dynamics Control the Long-Term Evolution of Weddell Sea Polynya Activity J. Rheinlænder et al. 10.3389/fclim.2021.718016
- Modeling the Influence of the Weddell Polynya on the Filchner–Ronne Ice Shelf Cavity K. Naughten et al. 10.1175/JCLI-D-19-0203.1
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Latest update: 01 Apr 2025
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.
Most ocean models, including NEMO, have unrealistic Southern Ocean deep convection. That is,...
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