The Frøya database and maritime boundary layer wind description

High-quality maritime wind-turbulence data obtained at exposed sites on the western coast of Norway during gale and stormy conditions are described. With a resolution of 1 Hz, and a height range of 10–100 m, the database is most suitable for describing the wind structure of the maritime boundary lay...

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Bibliographic Details
Published in:Marine structures 2006-04, Vol.19 (2), p.173-192
Main Authors: Andersen, Odd Jan, Løvseth, Jørgen
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Climatology and bioclimatics for buildings
Climatology. Bioclimatology. Climate change
Dynamic wind
Earth, ocean, space
Exact sciences and technology
External geophysics
Extreme wind loads
Hydraulic constructions
Maritime conditions
Meteorology
Offshore structure (platforms, tanks, etc.)
Static wind
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Summary:High-quality maritime wind-turbulence data obtained at exposed sites on the western coast of Norway during gale and stormy conditions are described. With a resolution of 1 Hz, and a height range of 10–100 m, the database is most suitable for describing the wind structure of the maritime boundary layer (MBL) with relevance for offshore compliant floating structures. The established description covers both static and dynamic wind, the latter with particular attention given to the low-frequency range 0.002–0.03 Hz (0.5–10 min). The relevance for and extrapolation to very strong wind speed design conditions has been emphasized. The static description of wind is found to be consistent with the Charnock relation reflecting the interaction between wind and waves. A most important conclusion is reached for the one-point wind speed spectrum. The low-frequency range (
ISSN:0951-8339
1873-4170
DOI:10.1016/j.marstruc.2006.07.003