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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 23, issue 2
Nonlin. Processes Geophys., 23, 95–105, 2016
https://doi.org/10.5194/npg-23-95-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Nonlin. Processes Geophys., 23, 95–105, 2016
https://doi.org/10.5194/npg-23-95-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

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

Franzke, C., Majda, A., and Branstator, G.: The origin of nonlinear signatures of planetary wave dynamics: mean phase space tendencies and contributions from non-Gaussianity, J. Atmos. Sci, 64, 3987–4003, 2007.
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.
Frederiksen, J. S.: Precursors to blocking anomalies: the tangent linear and inverse problems, J. Atmos. Sci., 55, 2419–2436, https://doi.org/10.1175/1520-0469(1998)055<2419:PTBATT>2.0.CO;2, 1998.
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.
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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.
To numerically simulate the atmosphere and ocean, the large eddies are resolved on a grid, and...
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