Spectra and gust factors for gale force marine winds |
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| Authors: | Stuart D Smith Peter C P Chandler |
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| Institution: | (1) Department of Fisheries and Oceans, Bedford Institute of Oceanography, P.O. Box 1006, B2Y 4A2 Dartmouth, Nova Scotia, Canada;(2) Martec Limited, 5670 Spring Garden Road, B3J 1H6 Halifax, Nova Scotia, Canada |
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| Abstract: | Wind turbulence measurements obtained at a stable floating platform 10 km off the coast of Nova Scotia are unique in the range of wind speeds covered, and in freedom from influences of platform motion and flow distortion. Spectra of wind velocity components are presented according to Monin-Obukhov similarity theory. Gust factors for downwind, lateral and vertical components are reported for a range of gust durations and sampling intervals. These results are compared with published values, confirming the concept of similarity theory for spectra in gale force winds, and resolving a discrepancy among published gust factors. |
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