159 6. Hybrid seismic imaging Figure 6.11 Results of 1D NA inversions of dispersion data (black error bars) at Xmid = 30 m ([a] fundamental and [b] first higher modes) and Xmid = 110 m ([d] fundamental mode). Resulting VS models are represented for (c) Xmid = 30 m and (e) Xmid = 110 m, along with a misfit-weighted velocity structure (dashed black lines) built from the average parameters of all accepted models. Calculated dispersion and corresponding models are represented with misfit-based color and gray scales for accepted and rejected models, respectively. From Pasquet and Bodet (2017). After each 1D inversion, models fitting the observed data within the uncertainty were selected. For each extraction window model, a misfit-weighted model was built averaging all accepted models. Once this model had been constructed, its acceptability was evaluated by calculating the theoretical dispersion curves (Figure 6.12).
RkJQdWJsaXNoZXIy NjA3NzQ=