TY - CHAP

T1 - Carrier and riding wave structure of rogue waves

AU - Schlurmann, T.

AU - Dätig, M.

N1 - Cited By :1 Export Date: 1 February 2021

PY - 2005

Y1 - 2005

N2 - A new interpretation of nonlinear wind–wave systems is proposed by means of the empirical mode decomposition and Hilbert spectral analysis on rogue waves. Based on data series recorded in the central North Sea, it is shown that the inherent structure of real sea states is assembled of a finite number of carrier and riding wave components. These predominant constituents are tentatively determined through ordinary Fourier- based spectra but inevitably proven by disintegrating the recorded data series into characteristic oscillations with the empirical mode decomposition. Spectral components are not considered a random collection of free waves, each obeying the usual dispersion relation, but are effectively nondispersive bound-wave components of an ensemble of single dominant carrier waves. Relations and interactions between energy density and averaged periods of the intrinsic modes are determined and correspond to previously done investigations on white noise and length-of-day data (Huang et al., 2003). © 2005 by Taylor & Francis Group, LLC.

AB - A new interpretation of nonlinear wind–wave systems is proposed by means of the empirical mode decomposition and Hilbert spectral analysis on rogue waves. Based on data series recorded in the central North Sea, it is shown that the inherent structure of real sea states is assembled of a finite number of carrier and riding wave components. These predominant constituents are tentatively determined through ordinary Fourier- based spectra but inevitably proven by disintegrating the recorded data series into characteristic oscillations with the empirical mode decomposition. Spectral components are not considered a random collection of free waves, each obeying the usual dispersion relation, but are effectively nondispersive bound-wave components of an ensemble of single dominant carrier waves. Relations and interactions between energy density and averaged periods of the intrinsic modes are determined and correspond to previously done investigations on white noise and length-of-day data (Huang et al., 2003). © 2005 by Taylor & Francis Group, LLC.

KW - Empirical mode decomposition

KW - Hilbert spectral analysis

KW - Irregular water waves

KW - Perturbation expansion approach

KW - Rogue waves

KW - Time–frequency analysis techniques

KW - Wave breakdown and modulation

KW - Wave self-focusing

M3 - Beitrag in Buch/Sammelwerk

SP - 25

EP - 57

BT - The Hilbert-Huang Transform in Engineering

ER -