Fig. 5
From: Effects of bound-wave asymmetry on North Sea rogue waves
Ekofisk dataset: composite crest and trough exceedance probabilities of (top row) the ensemble of sea states whose \(H_s>4\) m (\(1.5\cdot 10^6\) waves) and (bottom row) same statistics of the the ensemble of the severest sea states with Tayfun steepness \(\mu =\lambda _3/3>0.07\) and \(\sigma _{\theta }<30\) [deg] (\(3.2\cdot 10^4\) waves). Left plots: the contribution of each sea state to the wave statistics is weighted by the values of the Tayfun steepness \(\mu\) and directional spread \(\sigma _{\theta }\). Middle plots depict the statistics of crest and trough heights of the nonlinear \(\eta\), and the same statistics for the non-skewed free component \(\eta _1\) is depicted in the right plots. Marks denote empirical distributions from data of crest heights (square) and trough heights (circle), R=Rayleigh (dash line), F=3D Forristall (black), TF=\(3^{\textrm{rd}}\) Tayfun-Fedele (red), MNB=Modified-Narrow-Band (green) and NLS15 (blue) models.
