اعتبار تئوری تشابه لایه سطحی برای توصیف شرایط دریایی دریای هلند در زمینه تحقیقات انرژی باد

Wind shear is well described by the stability corrected logarithmic wind shear profile, though scatter is significant for stable conditions. This is explained by considering the relative height within the boundary layer where observations are taken. The non-dimensional second order moments of the three wind components are found to be either constant (neutral), proportional to (-ζ)−1/3 (unstable) or proportional to ζ−1/2ζ−1/2 (stable). The Kaimal spectrum has been validated for specified stability classes. The non-dimensional scaling frequency f0 for the three wind components increases for stable conditions, and decreases for unstable conditions. Besides, we find that f0 is smallest for the longitudinal wind component, and largest for the vertical wind component. These results support the validity and applicability of Monin–Obukhov similarity theory to describe atmospheric conditions far offshore.