%0 Journal Article
%T On Natural Modulational Bandwidth of Deep-Water Surface Waves
%A Alexander V. Babanin
%A Luigi Cavaleri
%A Miguel Onorato
%J -
%D 2019
%R https://doi.org/10.3390/fluids4020067
%X Abstract We suggest that there exists a natural bandwidth of wave trains, including trains of wind-generated waves with a continuous spectrum, determined by their steepness. Based on laboratory experiments with monochromatic waves, we show that, if no side-band perturbations are imposed, the ratio between the wave steepness and bandwidth is restricted to certain limits. These limits are consistent with field observations of narrow-banded wind-wave spectra if a characteristic width of the spectral peak and average steepness are used. The role of the wind in such modulation is also discussed. View Full-Tex
%K modulational instability
%K nonlinear waves
%K wave groups
%U https://www.mdpi.com/2311-5521/4/2/67