The effect of time-variable fluxes on mean wind and temperature profile structure

Synthetic wind speed and air temperature profiles based on the sensible heat flux density and stress at the surface are averaged for the four possible ways in which the suface stress and heat flux density can vary maintaining the same average values. The analysis of the averaged wind and temperature profiles shows that, when the surface stress and/or heat flux density are time-variable, and wind speed and air temperature are averaged linearly, an erroneous estimate of surface roughness, surface stress, heat flux density and profile structure parameters will result.