Figure 3
Scholte waves retrieved from oceanic microseism noise along the 20 km cable. (a,b) show empirical Green’s function gathers with virtual sources located at 8.2 km and 15 km, respectively. The red stars indicate the virtual sources. The cyan dashed lines indicate the approximate velocity of the Scholte wave. Backscattered Scholte waves are visible near the 9 km location of (a). The coherent signals on (b) appear to have a higher frequency which is consistent with the increasing spectrum on 2b.
