Comparing mixing-length models of the diabatic wind profile over homogeneous terrain

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    Abstract

    Models of the diabatic wind profile over homogeneous terrain for the entire atmospheric boundary layer are developed using mixing-length theory and are compared to wind speed observations up to 300 m at the National Test Station for Wind Turbines at Høvsøre, Denmark. The measurements are performed within a wide range of atmospheric stability conditions, which allows a comparison of the models with the average wind profile computed in seven stability classes, showing a better agreement than compared to the traditional surface-layer wind profile. The wind profile is measured by combining cup anemometer and lidar observations, showing good agreement at the overlapping heights. The height of the boundary layer, a parameter required for the wind profile models, is estimated under neutral and stable conditions using surface-layer turbulence measurements, and under unstable conditions based on the aerosol backscatter profile from ceilometer observations.
    Original languageEnglish
    JournalTheoretical and Applied Climatology
    Volume100
    Issue number3-4
    Pages (from-to)325-335
    ISSN0177-798X
    DOIs
    Publication statusPublished - 2010

    Keywords

    • Wind energy
    • Wind power meteorology

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