Journal article
Cross-Spectra Over the Sea from Observations and Mesoscale Modelling
CL Vincent, XG Larsén, SE Larsen, P Sørensen
Boundary Layer Meteorology | SPRINGER | Published : 2013
Abstract
Cospectra and quadrature spectra are calculated for six pairs of tall offshore measurement masts near the Horns Rev I wind farm in the Danish North Sea and the Nysted wind farm in the Baltic sea. The mast-pairs are separated from one another by horizontal distances of 2.13-12.4 km. Cospectra and quadrature spectra for the two sites are classified in terms of the angle between the mean wind direction and the line connecting each pair of masts. The frequency axes of the spectra are normalized to remove the effect of mean wind speed and separation distance. Results indicate a larger contribution to the quadrature spectrum for flow from the sea than for flow from the land, and the patterns in th..
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Funding Acknowledgements
The contribution of C. L. Vincent was supported by the Danish Council for Independent Research-Technology and Production Sciences (case number 10-093196) individual post-doc project. The contribution of the remaining authors was supported by the Danish project 'Mesoscale variability and the variability of wind and production of offshore wind farms (contract number PSO-1741). The authors are grateful to Dong Energy and Vattenfall for permission to use observations from the Horns Rev I and Nysted wind farms.