Figure S3. Observed (real data noise-added), FWI
inverted and the difference between inverted and observed data for
transmitters at the depth of major tracer intrusion (6 m) and at depth
where no intrusion occurs (9.6 m). This figure is complementary to
Figure 13 in the paper. Data is presented for the (a) Desalinated
(tracer case in Figure 10 a ) and (b) High (tracer case in Figure 10 e )
tracer cases. Note that for the High case in (b) for the transmitter at
6 m depth panel where the signal is weaker because it the wave travels
through the increased σ of the tracer, the color scale is 30
times smaller. r2 quantifies the correlation
between FWI inverted and the observed data. The standard deviation of
the Gaussian ambient noise was 4.6∙10-8 in all cases.
Figure S3 (in Supplements) show Desalinated and High tracer cases.