Modelling parametric uncertainty in large-scale stratigraphic simulations

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SUMMARY

    Definition of an initial geological model featuring a given model structure together with an initial guess of the model parameter variability ranges. As a result the authors discard parameters displaying a negligible influence on model outputs and the authors revise the initially defined parameters ranges. Surrogate models are typically constructed using data-driven approach via the response of the full simulator to selected locations in the parameter s­ pace34,35. The surrogate model is built on the Polynomial Chaos Expansion (PCE) technique with a reduced number of parameters selected through the screening s­ tep36 . . .

     

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