Figure 2 | Scientific Reports

Figure 2

From: Distributed acoustic sensing for active offshore shear wave profiling

Figure 2

DAS data from site 1 showing (a) 2 h 45 min waterfall FBE data with passive and active data recording. (b) 2.5 min passive data showing ocean pressure waves, with apparent group wave velocities highlighted (red dashed lines). (c) 25 s active data showing airgun shot with pressure wave interference. (d) 5 s shot record on 900 channels.

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