402130.fig.006a
(a)
402130.fig.006b
(b)
Figure 6: Sound pressure levels (SPL) re 1  𝜇 Pa at 1000 Hz. (a) shows the plan view of the levels at 1 m from the tank floor whereas (b) shows the plan view at 1 m from the surface. The asterisks indicate the location of the measurements at 1 m from the acrylic window.