Fig. 4. Wind profile at 1700 to 1800 h on 11 Dec. 1998. Wind speed has been measured at three different heights from the soil (43, 124, and 240 cm). Open rectangles represent measured points (average) while the line represents a regression line. The constant (0.80) in the exponential function of the regression line corresponds to the roughness length, Z₀ (expressed in cm).

Return to article