Using a series of measurements from northern Portugal's steep, hilly terrain, Tony Bowen of the University of Canterbury reported that he had developed an indicator for the Wind Analysis and Application Package (WAsP) in predicting wind measurements over rugged sites -- such as the sort in New Zealand. "The assessment of a project's economic viability is only as good as the quality of the wind speed date at the proposed site," said Bowen, a mechanical engineer. While WAsP provides accurate predictions over low, smooth hills with gentle slopes, Bowen was interested in finding an indicator that could be used to assess the effects of hilly terrain on WAsP's prediction accuracy. He was able to develop an indicator which provided a means of defining quantitatively the limits for accurate WAsP prediction and a suitable correction if the limits are exceeded.
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