An alternative approach to the parameterization of the momentum flux over the sea

In this study we search for the optimal wave parameters characterizing the effect of waves on the air-sea momentum flux. When an attempt using traditional statistics failed to give an unequivocal answer, we applied a neural network approach. This led to a clear choice for the optimal parameters viz....

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Bibliographic Details
Published in:Boundary-layer meteorology 2004-12, Vol.113 (3), p.411-426
Main Authors: OOST, W. A, OOST, E. M
Format: Article
Language:English
Subjects:
Convection, turbulence, diffusion. Boundary layer structure and dynamics
Earth, ocean, space
Exact sciences and technology
External geophysics
Meteorology
Neural networks
Wave height
Wind speed
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Summary:In this study we search for the optimal wave parameters characterizing the effect of waves on the air-sea momentum flux. When an attempt using traditional statistics failed to give an unequivocal answer, we applied a neural network approach. This led to a clear choice for the optimal parameters viz. the wind speed at a level equal to the wave height and the wavelength at the peak of the spectrum. With this set we could find a dimensionally correct parameterization that gave a close fit to our stress data, obtained in the southern North Sea. A comparison with open ocean data gave comparable results, allowing a generally applicable formulation. Wave breaking could explain the remaining small differences between the two sets of stress data.[PUBLICATION ABSTRACT]
ISSN:0006-8314
1573-1472
DOI:10.1007/s10546-004-0488-6