Vindprofilen
Vindprofilen is the vertical distribution of wind speed and wind direction with height above the surface. In meteorology and wind energy, the profile describes how the wind changes from ground level to higher layers and how wind shear and direction shear develop. The wind speed generally increases with height as surface friction decreases, but the exact profile depends on surface roughness, terrain, and atmospheric stability. Neutral, stable, and unstable stratifications yield different profiles, which are commonly described by the log-law in the surface layer and by power-law or other formulations in the broader boundary layer. Monin-Obukhov similarity theory provides a framework to relate the wind profile to stability, roughness, and turbulence.
Measurement and estimation of Vindprofilen rely on a range of methods. Tall meteorological towers equipped with
Applications of Vindprofilen include site assessment and turbine design for wind farms, where wind shear and