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Estimations of turbulent energy dissipation rate from Doppler lidar data

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Abstract

Along with measurements of mean wind fields, Doppler lidars are used for estimation of the turbulence parameters.1-4 In particularly, the attempts to use the Doppler lidars for measurement of the dissipation rate of the turbulent kinetic energy εT and the wind field structure constant from estimations of mean spectrum width of Doppler signal are discussed in Refs.2-4. This approach is true for small sizes of lidar sensing volume. If longitudinal size of sensing volume Δz is comparable or exceeds the outer scale of turbulence LV this method can not be used. We discuss the feasibility of estimations of dissipation rate from Doppler lidar data at arbitrary size of lidar probe volume.

© 1995 Optical Society of America

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