Collections > Electronic Theses and Dissertations > A Validation of Stability-Based Estimates of North Carolina’s Offshore Wind Resource Using a Nested Boundary Layer Method

Wind profile measurements over the ocean have been historically sparse, making offshore wind resource estimations difficult. This study presents a method for improvement of estimates in coastal North Carolina using a land-based SODAR wind profiler. Thermal influences in the area have been found to complicate the wind climate through atmospheric stability. The COARE algorithm was used to calculate a MOST scaling parameter, quantifying surface stability. Knowledge of upwind conditions aided in estimating the influence of nested internal boundary layers (IBLs) where COARE results were applicable. The layers identified in IBL approximations indicate that (1) stable sound cases retain little evidence of the stable environment over the sound, and that (2) in ocean cases, effects of stability can improve wind speed estimation in stable conditions, but (3) wind shear is underestimated in all cases. These results should improve the estimate of the available wind resource, including wind speed, shear and turbulence.