Theoretical and Applied Climatology

, Volume 100, Issue 3–4, pp 325–335 | Cite as

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

  • Alfredo Peña
  • Sven-Erik Gryning
  • Charlotte Bay Hasager
Original Paper


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.


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Alfredo Peña
    • 1
    • 2
  • Sven-Erik Gryning
    • 1
  • Charlotte Bay Hasager
    • 1
  1. 1.Wind Energy Division, Risø National Laboratory for Sustainable EnergyTechnical University of DenmarkRoskildeDenmark
  2. 2.Department of Geography and GeologyUniversity of CopenhagenCopenhagenDenmark

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