Eddy diffusivity diagnostics data
Data CreatorMak, Julian
PublisherUniversity of Edinburgh. School of Mathematics.
Relation (Is Referenced By)http://arxiv.org/abs/1512.04045
MetadataShow full item record
CitationMak, Julian; Maddison, James; Marshall, David. (2015). Eddy diffusivity diagnostics data, [dataset]. University of Edinburgh. School of Mathematics.. http://dx.doi.org/10.7488/ds/366.
DescriptionCoarse resolution numerical ocean models must typically include a parameterisation for mesoscale turbulence. A common recipe for such parameterisations is to invoke down-gradient mixing, or diffusion, of some tracer quantity, such as potential vorticity or buoyancy. However, it is well known that eddy fluxes include large rotational components which necessarily do not lead to any mixing; eddy diffusivities diagnosed from unfiltered fluxes are thus contaminated by the presence of these rotational components.
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