Geometrical-Feature-Preserving Adjoint Tomography of Near-Surface Structure with Seismic Early Arrival

Figure 3

Comparison of the insensitivity to noise of the L2‐norm and W2‐norm. (a) Synthetic waveform:, observed waveform: gt, and observed data plus uniform random noise: gt + noise; (b) the distance between ft and gt and between ft and gt + noise under L2‐norm and W2-norm.

(a)

(b)