Fine scale inhomogeneity of wind-wave energy input, skewness, and asymmetry
Date
2005-06-16
Authors
Agnon, Yehuda
Babanin, Alexander V
Young, Ian R
Chalikov, Dmitry
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American Geophysical Union (AGU)
Abstract
Analysis of measured sea and lake wind wave data reveals large variability of the wind energy input, as well as the waves skewness and asymmetry. The spatial and temporal third moments alternate in sign over a few wave periods and over a few wavelengths, respectively. Simulation through a 2D Wave Boundary Layer model in which the air flow is modeled by 2nd order Reynolds equations (Chalikov, 1998) conforms to these findings and exposes a rich structure. We found clear correlation of the variations of the skewness and the asymmetry with the wind input.
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Keywords: Boundary layers; Computer simulation; Lakes; Mathematical models; Mathematical transformations; Reynolds number; Seawater; Surface waters; Wind; Wind power; Wind stress; Field wave measurement data; Hilbert transforms; Wave Boundary Layer model; Meteorolo
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Geophysical Research Letters 32.12 (2005): L12603/1-4
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Journal article
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