Extrapolation of wind speed to nacelle height
Atlas of Wind Power Potential and Wind Measurements

In order to estimate the wind energy recovered by the wind turbine wheel, the Weibull parameters k and C are extrapolated from the altitude level z ₁ of the wind speed measurement to the altitude z ₂ of the wind turbine nacelle.

In 1976, Justus and Mikhail have proposed, for an initial altitude reference equal to 10 m, the following extrapolation formulas at altitudes z _1...