387175.fig.005a
(a)
387175.fig.005b
(b)
387175.fig.005c
(c)
Figure 5: Streamerwise imaged sea surface as shown in Figure 4, but now the spacings between the streamers are, respectively, (a) 25 m, (b) 100 m, and (c) the ensemble averaged spectrum of the imaged sea surface in case of 100 m spacing. The indicated peak of the spectrum corresponds to and .