Fig. 4: Reconstructed surface elevation timeseries and wave spectra.
From: Three-dimensional imaging of waves and floes in the marginal ice zone during a cyclone

a Surface elevation timeseries at progressive distances from the ice edge (top–to–bottom; time on horizontal axes and surface elevation on vertical axes; colour-coding corresponds to locations shown in Fig. 3a) around the largest wave in each record. Dashed lines indicate significant wave heights, HS. b Frequency and c frequency–direction wave spectra at progressive distances from the ice edge. b, c The horizontal axis denotes frequency, in b the vertical axis wave energy and in c direction. Two-dimensional spectra are shown in Cartesian coordinates as the spectra cover only a narrow directional range, −60∘ < θ < 60∘, and normalised by the peak energy to highlight directional properties (colorbar shown next to the title). a–c Shaded backgrounds denote the measurement location in intermediate ice concentration.