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Comparison Studies on Sea Surface Roughness Schemes

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Abstract:

The data, originated from the RASEX experiment and the Surface Wave Dynamics Experiment. RASEX experiment took place at an offshore wind turbine site in the Baltic Sea in 1994, it is representative of the fetch-limited conditions; SWADE experiment was carried out off the Atlantic coast of the United States in 1990, it is representative of the wind-sea/swell conditions. Both datasets are used to test sea surface roughness schemes by using bulk algorithm. The aim of this study is to better understand the sensitively of the surface momentum fluxes to choice of surface roughness parameterization and the range of applicability of the four schemes (YT96, TY01, O02, and GW06). It was found YT96, TY01 and GW06 schemes generated friction velocity, drag coefficient and wind stress in good agreement with the direct measurements under different wind sea conditions, but O02 scheme overestimate them with the wind speed larger than 8ms-1 for the fetch-limited conditions.

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Periodical:

Advanced Materials Research (Volumes 610-613)

Pages:

2751-2755

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.610-613.2751

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Online since:

December 2012

Authors:

Yu Ping Pan, Su Fang Ge, Wen Yu Sha

Keywords:

COARE, Friction Velocity, Sea Surface Aerodynamic Roughness Scheme, Wind Stress

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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