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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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GMD | Articles | Volume 13, issue 7
Geosci. Model Dev., 13, 3347–3371, 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Nucleus for European Modelling of the Ocean - NEMO

Geosci. Model Dev., 13, 3347–3371, 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Development and technical paper 30 Jul 2020

Development and technical paper | 30 Jul 2020

Representation of the Denmark Strait overflow in a z-coordinate eddying configuration of the NEMO (v3.6) ocean model: resolution and parameter impacts

Pedro Colombo et al.

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Cited articles

Almansi, M., Haine, T., Pickart, R. S., Magaldi, M., Gelderloos, R., and Mastropole, D.: High-Frequency Variability in the Circulation and Hydrography of the Denmark Strait Overflow from a High-Resolution Numerical Mode, J. Phys. Oceanogr., 47, 2999–3013,, 2017. a, b
Baines, P. G., and Condie, S. A.: Observations and modelling of Antarctic downslope flows: A review, in: Ocean, Ice and Atmosphere: Interactions at the Antarctic Continental Margin, edited by: Jacobs, S. and Weiss, R., Amer. Geophys. Union, 75, 29–49, 1998. a
Baringer, M. O. and Price, J. F.: Mixing and Spreading of the Mediterranean Outflow, J. Phys. Oceanogr., 27, 1654–1677, 1997. a
Barnier, B., Madec, G., Penduff, T., Molines, J., Treguier, A., Le Sommer, J., Beckmann, A., Biastoch, A., Böning, C. W., Dengg, J., Derval, C., Durand, E., Gulev, S., Remy, E., Talandier, C., Theetten, S., Maltrud, M., McClean, J., and De Cuevas, B.: Impact of partial steps and momentum advection schemes in a global ocean circulation model at eddy-permitting resolution, Ocean Dynam., 56, 543–567, 2006. a, b
Barnier, B., Domina, A., Gulev, S., Molines, J.-M., Maitre, T., Penduff, T., Le Sommer, J., Brasseur, P., Brodeau, L., and Colombo, P.: Modelling the impact of flow-driven turbine power plants on great wind-driven ocean currents and the assessment of their energy potential, Nat. Energy, 5, 240–249,, 2020. a
Publications Copernicus
Short summary
In the ocean circulation model NEMO, the representation of the overflow of dense Arctic waters through the Denmark Strait is investigated. In this z-coordinate context, sensitivity tests show that the mixing parameterizations preferably act along the model grid slope. Thus, the representation of the overflow is more sensitive to resolution than to parameterization and is best when the numerical grid matches the local topographic slope.
In the ocean circulation model NEMO, the representation of the overflow of dense Arctic waters...