Spatial averaging-effects on turbulence measured by a continuous-wave coherent lidar

Mikael Sjöholm; Torben Mikkelsen; Jakob Mann; Karen Enevoldsen; Michael Courtney

doi:10.1127/0941-2948/2009/0379

Spatial averaging-effects on turbulence measured by a continuous-wave coherent lidar

Mikael Sjöholm, Torben Mikkelsen, Jakob Mann, Karen Enevoldsen, Michael Courtney

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The influence of spatial volume averaging of a focused continuous-wave coherent Doppler lidar on observed wind turbulence in the atmospheric surface layer is described and analysed. For the first time, comparisons of lidar-measured turbulent spectra with spectra simultaneously obtained from a mast-mounted sonic anemometer at 78 meters height over homogeneous terrain at the test station for large wind turbines at Høvsøre in Western Jutland, Denmark are presented for various backscattering and cloud conditions. Good agreement is found between lidar-measured spectra and spectra predicted by applying a theoretical lidar sampling filter to the three-dimensional turbulence structure.

Original language	English
Journal	Meteorologische Zeitschrift
Volume	18
Issue number	3
Pages (from-to)	281-287
ISSN	0941-2948
DOIs	https://doi.org/10.1127/0941-2948/2009/0379
Publication status	Published - 2009

Keywords

Wind energy
Test and measurements

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10.1127/0941-2948/2009/0379

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title = "Spatial averaging-effects on turbulence measured by a continuous-wave coherent lidar",

abstract = "The influence of spatial volume averaging of a focused continuous-wave coherent Doppler lidar on observed wind turbulence in the atmospheric surface layer is described and analysed. For the first time, comparisons of lidar-measured turbulent spectra with spectra simultaneously obtained from a mast-mounted sonic anemometer at 78 meters height over homogeneous terrain at the test station for large wind turbines at H{\o}vs{\o}re in Western Jutland, Denmark are presented for various backscattering and cloud conditions. Good agreement is found between lidar-measured spectra and spectra predicted by applying a theoretical lidar sampling filter to the three-dimensional turbulence structure.",

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doi = "10.1127/0941-2948/2009/0379",

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T1 - Spatial averaging-effects on turbulence measured by a continuous-wave coherent lidar

AU - Sjöholm, Mikael

AU - Mikkelsen, Torben

AU - Mann, Jakob

AU - Enevoldsen, Karen

AU - Courtney, Michael

PY - 2009

Y1 - 2009

N2 - The influence of spatial volume averaging of a focused continuous-wave coherent Doppler lidar on observed wind turbulence in the atmospheric surface layer is described and analysed. For the first time, comparisons of lidar-measured turbulent spectra with spectra simultaneously obtained from a mast-mounted sonic anemometer at 78 meters height over homogeneous terrain at the test station for large wind turbines at Høvsøre in Western Jutland, Denmark are presented for various backscattering and cloud conditions. Good agreement is found between lidar-measured spectra and spectra predicted by applying a theoretical lidar sampling filter to the three-dimensional turbulence structure.

AB - The influence of spatial volume averaging of a focused continuous-wave coherent Doppler lidar on observed wind turbulence in the atmospheric surface layer is described and analysed. For the first time, comparisons of lidar-measured turbulent spectra with spectra simultaneously obtained from a mast-mounted sonic anemometer at 78 meters height over homogeneous terrain at the test station for large wind turbines at Høvsøre in Western Jutland, Denmark are presented for various backscattering and cloud conditions. Good agreement is found between lidar-measured spectra and spectra predicted by applying a theoretical lidar sampling filter to the three-dimensional turbulence structure.

KW - Wind energy

KW - Test and measurements

KW - Test og målinger

KW - Vindenergi

U2 - 10.1127/0941-2948/2009/0379

DO - 10.1127/0941-2948/2009/0379

M3 - Journal article

SN - 0941-2948

VL - 18

SP - 281

EP - 287

JO - Meteorologische Zeitschrift

JF - Meteorologische Zeitschrift

IS - 3

ER -

Spatial averaging-effects on turbulence measured by a continuous-wave coherent lidar

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