Figure 9: Ensemble-averaged power spectral density of water surface elevation at all points along the one-dimensional transect from BOSZ.
From: Destructive tsunami-like wave generated by surf beat over a coral reef during Typhoon Haiyan

(a,b) Plots from the real reef case and (c,d) plots from no-reef case. Panels a and c show the full frequency range, while panels b and d are zoomed in on infragravity frequencies.