Figure 4

Sensitivity indices \({\mu }^{*}\) versus \(\sigma\) at 89 Ma for \(Z\) (a) and in the age interval 89–66 Ma for \({{V}}_{{sand}}\) (b). Red lines indicate the selected thresholds. Solid points are the spatial average values of \({\mu }^{*}\) and \(\sigma\) for each of the model parameters, error bars indicate the 5th and 95th percentile of the index \({\mu }^{*}\) evaluated in the spatial domain. Results related to parameter #71 are highlighted in black. Parameters whose average indices are below the thresholds are shown half-transparent.