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Full-Text Articles in Physical and Environmental Geography
Empirical Downscaling Of Wind Speed Probability Distributions, S C. Pryor, Justin T. Schoof, R J. Barthelmie
Empirical Downscaling Of Wind Speed Probability Distributions, S C. Pryor, Justin T. Schoof, R J. Barthelmie
Publications
This paper presents a novel approach to developing empirically downscaled estimates of near-surface wind speed and energy density and results from application of the technique to multiple stations in northern Europe. The downscaling takes a probabilistic approach in that it uses the mean and standard deviation of relative vorticity at 500 hPa and mean sea level pressure gradients computed using output from the ECHAM4/OPYC3 atmosphere-ocean general circulation model as the predictors and parameters of the wind speed probability distribution at surface stations as the predictands.We demonstrate that this approach generates accurate depictions of the wind climate during the conditioning period …
The Impact Of Non-Stationarities In The Climate System On The Definition Of "A Normal Wind Year": A Case Study From The Baltic, S C. Pryor, R J. Barthelmie, Justin T. Schoof
The Impact Of Non-Stationarities In The Climate System On The Definition Of "A Normal Wind Year": A Case Study From The Baltic, S C. Pryor, R J. Barthelmie, Justin T. Schoof
Publications
Wind speeds over the Baltic significantly increased over the second half of the 20th century (C20th), with the majority of the increase being focused on the upper quartile of the wind speed distribution and in the southwest of the region. These changes have potentially profound implications for the wind energy resource. For example, based on the National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) reanalysis data it is shown that, owing to this non-stationarity, using the normalization period of 1987–98 to determine the wind resource (as in the Danish wind index) leads to overestimation of the wind energy …