Fig. 5
From: Shallow structure and late quaternary slip rate of the Osaka Bay fault, western Japan
Close-up of bathymetry and backscatter imageries across the Okinose sand bank. (a) Bathymetry data image the morphology of the sand bank, with characteristic ENE–WSW trending lineation fabrics interpreted to be sand wave bedforms. (b) Elevation of bedforms across i–ii (left), and iii–iv (right) shown in (a). The sand waves generally have steeper southern flanks. Note smaller-scale waves in southern portion of the dune. (c) Backscatter intensities detect the morphology of individual sand waves (blue arrows: example of larger-scale sand waves, yellow arrows: example of smaller-scale sand waves). The backscatter imagery provides fine details of the small-scale sand waves that extends to the southern flanks of the dune complex. Note occasionally patchy distributions. Black box: example of heterogeneous, high backscatter intensities not related to sand waves