Articles | Volume 23, issue 2
Nonlin. Processes Geophys., 23, 95–105, 2016
Nonlin. Processes Geophys., 23, 95–105, 2016

Research article 14 Apr 2016

Research article | 14 Apr 2016

Theoretical comparison of subgrid turbulence in atmospheric and oceanic quasi-geostrophic models

Vassili Kitsios et al.

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Cited articles

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Franzke, C., O'Kane, T. J., Berner, J., Williams, P. D., and Lucarini, V.: Stochastic climate theory and modeling, Adv. Rev., 6, 63–78, 2015.
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Frederiksen, J. S.: Subgrid-scale parameterizations of eddy-topographic force, eddy viscosity and stochastic backscatter for flow over topography, J. Atmos. Sci., 56, 1481–1493, 1999.
Frederiksen, J. S.: Statistical dynamical closures and subgrid modeling for inhomogeneous QG and 3D turbulence, Entropy, 14, 32–57, 2012a.
Short summary
To numerically simulate the atmosphere and ocean, the large eddies are resolved on a grid, and the effect the small unresolved eddies have on the large ones is modelled. Improper modelling leads to resolution-dependent results. We solve this long-standing problem by calculating the model coefficients from high-resolution simulations, and characterise the coefficients with a set of scaling laws. Low-resolution simulations adopting these laws reproduce the statistics of the high-resolution cases.