Fig. 8
From: 3-D inversion of magnetic data based on the L1–L2 norm regularization
An optimal model derived by L1–L2 norm regularized inversion. An optimal model derived by L1–L2 norm regularized inversion with \(\hat{\alpha }^{S_1}=0.96\) using weighting function \(\varvec{w}^{S_1}\). a A perspective view of the optimum model which displays all non-zero model elements, b total field anomaly computed by this model, and c histogram of the residuals