The Effect of Submeso Motions on the Budgets of the Mean Turbulent Kinetic Energy and Temperature Variance in the Stable Atmospheric Surface Layer

By considering turbulence observations in the atmospheric stable surface layer over complex terrain, we study effect of submeso motions on budgets mean turbulent kinetic energy (TKE) and (half) temperature variance. Different averaging times are considered (i.e., 100 s 30 min), to filter out or retain contributions second-order moments. Furthermore, results interpreted by introducing four parameters that express relative contribution TKE, variance, vertical fluxes heat momentum. Four regimes identified according these evaluated for regimes. A balance among production, buoyancy (for TKE) dissipation occurs two characterized small fluxes, while an unbalance other regimes, where is large. Instead, independent magnitude TKE