Cross-Spectrum of Wind Speed for Meso-Gamma Scales in the Upper Surface Layer over South-Eastern Australia |
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Authors: | Milton J. Woods Robert J. Davy Christopher J. Russell Peter A. Coppin |
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Affiliation: | 1.Centre for Australian Weather and Climate Research (A partnership between CSIRO and the Bureau of Meteorology),Canberra,Australia;2.Bureau of Meteorology,Melbourne,Australia |
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Abstract: | Analytical expressions for the cross-spectrum of wind speed are developed for the stochastic simulation of wind power in south-eastern Australia. The expressions are valid for heights above the ground in the range 40–80 m, site separations of 1–30 km, and frequencies of (1/6)–3 cycles h−1. The influence of site separation distance is taken into account, as are variables that are defined for blocks of time. These variables include the mean and standard deviation of wind speed and the mean wind direction. The parameters of the model equations are determined by non-linear least-squares regression with cross-validation over 10 years of wind measurements from 84 towers in south-eastern Australia. |
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