Journal article
Fine scale inhomogeneity of wind-wave energy input, skewness, and asymmetry
Y Agnon, AV Babanin, IR Young, D Chalikov
Geophysical Research Letters | AMER GEOPHYSICAL UNION | Published : 2005
DOI: 10.1029/2005GL022701
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. Copyright 2005 by the American Geophysical Union.