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Atmospheric and Oceanic Optics

2017 year, number 4

Lidar measurements of wind turbulence parameters in the atmospheric boundary layer

I.N. Smalikho, V.A. Banakh, A.V. Falits
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: когерентный доплеровский лидар, коническое сканирование, ветровая турбулентность, coherent Doppler lidar, conical scanning, wind turbulence


Possibility of determining wind turbulence parameters, i.e., turbulence kinetic energy, energy dissipation rate, and outer turbulence scale, from data measured by a Stream Line coherent Doppler lidar during conical scanning under different atmospheric conditions in the atmospheric boundary layer is studied experimentally. It is found that the turbulence structure is described well by the von Karman model in the layer of intensive mixing, and the turbulence parameters can be estimated from the lidar data with sufficiently high accuracy. The estimation of the outer turbulence scale from the nighttime lidar measurements, under stable temperature stratification, with the use of the von Karman model is impossible.