Modern 4DVarContent License: Creative Commons Attribution 4.0 International (CC-BY-4.0)Credit must be given to the creatorDownloadsUncertain ParametersHow can we account for stochasticityJ. Emmanuel JohnsonCNRS MEOM Deterministic¶Probabilistic¶Fully Bayesian¶Approximate Bayesian¶Drop-Out¶Deep Ensembles¶UncertaintyModelUncertaintyEstimation