mixsea.shearstrain.diffusivity

mixsea.shearstrain.diffusivity(eps, N, Gam=0.2)[source]

Calculate vertical diffusivity

Parameters:

eps (array-like) – Turbulent dissipation
N (array-like) – Buoyancy frequency
Gam (float, optional) – Mixing efficiency Gamma. Defaults to 0.2 as commonly used.

Returns:

kappa – Vertical diffusivity

Return type:

array-like

Notes

Calculates vertical diffusivity from turbulent dissipation based on a constant mixing efficiency:

\[\kappa = \Gamma \frac{\epsilon}{N^2}\]