Spatiotemporal Dynamics of the Kinetic Energy in the Atmospheric Boundary Layer from Minisodar Measurements

Spatiotemporal dynamics of the atmospheric kinetic energy and its components caused by ordered turbulent motions air masses are estimated from minisodar measurements three velocity vector their variances within lowest 5–200 m layer atmosphere, with a particular emphasis on energy. The layered structure total has been established. From diurnal hourly altitude profiles (TKE) retrieved data, four layers established character TKE dependence, namely, near-ground layer, surface linear increase, transitive above. In first most significant changes were observed in evening hours. second no values observed. A increase was third layer. fourth slightly increased exhibited variations during entire observation period. altitudes upper boundaries these depended time day. MKE much less than corresponding values, they did not exceed 50 m2/s2. two to distinguished based dependence. two-layer structures at night (under conditions stable boundary layer). morning daytime, four-layer intermediate subsequent decrease Our estimates demonstrated that contribution considerably (by factor 2.5–3) exceeded contribution.