Overview of the Bayesian optimization workflow designed for improving the accuracy of the MEDSLIK-II oil spill model simulations. The workflow iteratively refines the simulation configuration parameters by evaluating the objective function and optimizing the acquisition function until a convergence criterion is met. Here, we denote the iteration number with the superscript (i), for the sake of clarity. Credit: Ecological Informatics (2025). DOI: 10.1016/j.