Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer

The method and results of lidar studies of spatiotemporal variability of wind turbulence in the atmospheric boundary layer are reported. The measurements were conducted by a Stream Line pulsed coherent Doppler lidar (PCDL) with the use of conical scanning by a probing beam around the vertical axis...

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Main Authors: I. N. Smalikho, V. A. Banakh
Format: Article
Language:English
Published: Copernicus Publications 2017-11-01
Series:Atmospheric Measurement Techniques
Online Access:https://www.atmos-meas-tech.net/10/4191/2017/amt-10-4191-2017.pdf
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author I. N. Smalikho
V. A. Banakh
author_facet I. N. Smalikho
V. A. Banakh
author_sort I. N. Smalikho
collection DOAJ
description The method and results of lidar studies of spatiotemporal variability of wind turbulence in the atmospheric boundary layer are reported. The measurements were conducted by a Stream Line pulsed coherent Doppler lidar (PCDL) with the use of conical scanning by a probing beam around the vertical axis. Lidar data are used to estimate the kinetic energy of turbulence, turbulent energy dissipation rate, integral scale of turbulence, and momentum fluxes. The dissipation rate was determined from the azimuth structure function of radial velocity within the inertial subrange of turbulence. When estimating the kinetic energy of turbulence from lidar data, we took into account the averaging of radial velocity over the sensing volume. The integral scale of turbulence was determined on the assumption that the structure of random irregularities of the wind field is described by the von Kármán model. The domain of applicability of the used method and the accuracy of the estimation of turbulence parameters were determined. Turbulence parameters estimated from Stream Line lidar measurement data and from data of a sonic anemometer were compared.
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spelling doaj.art-900be349ac354806b9fa54998c07ce722022-12-22T03:21:07ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482017-11-01104191420810.5194/amt-10-4191-2017Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layerI. N. Smalikho0V. A. Banakh1V. E. Zuev Institute of Atmospheric Optics SB RAS, Tomsk, RussiaV. E. Zuev Institute of Atmospheric Optics SB RAS, Tomsk, RussiaThe method and results of lidar studies of spatiotemporal variability of wind turbulence in the atmospheric boundary layer are reported. The measurements were conducted by a Stream Line pulsed coherent Doppler lidar (PCDL) with the use of conical scanning by a probing beam around the vertical axis. Lidar data are used to estimate the kinetic energy of turbulence, turbulent energy dissipation rate, integral scale of turbulence, and momentum fluxes. The dissipation rate was determined from the azimuth structure function of radial velocity within the inertial subrange of turbulence. When estimating the kinetic energy of turbulence from lidar data, we took into account the averaging of radial velocity over the sensing volume. The integral scale of turbulence was determined on the assumption that the structure of random irregularities of the wind field is described by the von Kármán model. The domain of applicability of the used method and the accuracy of the estimation of turbulence parameters were determined. Turbulence parameters estimated from Stream Line lidar measurement data and from data of a sonic anemometer were compared.https://www.atmos-meas-tech.net/10/4191/2017/amt-10-4191-2017.pdf
spellingShingle I. N. Smalikho
V. A. Banakh
Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer
Atmospheric Measurement Techniques
title Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer
title_full Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer
title_fullStr Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer
title_full_unstemmed Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer
title_short Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer
title_sort measurements of wind turbulence parameters by a conically scanning coherent doppler lidar in the atmospheric boundary layer
url https://www.atmos-meas-tech.net/10/4191/2017/amt-10-4191-2017.pdf
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AT vabanakh measurementsofwindturbulenceparametersbyaconicallyscanningcoherentdopplerlidarintheatmosphericboundarylayer