However, the turbulence of this layer influences the dynamics of the entire Ekman layer beneath. Below the wave-turbulent diffusive layer, there is a transitional turbulent diffusive layer where the turbulent diffusion still exceeds the mean shear contribution in the TKE budget but the wave motion effect becomes insignificant . The source of turbulence in this layer is the turbulent kinetic energy flux from the upper wave-turbulent layer. However, the turbulent mixing scale is a linear function of depth. This case, in terms of the parameters of the governing equations, corresponds to Pr e 1. 74.
Theoretical prediction is consistent with data observed in the ocean.
This regime may also be used as a test for numerical models, which are based on the k - e model. Following after the transition turbulent diffusive layer there is a layer, where the mean shear production of turbulent energy dominates. All these turbulent characteristics are controlled by the wave breaking mechanism and the turbulence dynamics in the wave-turbulent layer and the turbulent diffusive layer. We may conclude that the suggested model gives an adequate description of the natural ocean turbulence for the constant friction layer of the upper ocean.