An MLP predicts the covariance difference between limited and large ensembles and applies an element-wise scaling correction to the EnKF forecast covariance, yielding higher analysis accuracy on Lorenz-63 and Lorenz-96 systems.
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Enabling High-Accuracy Data Assimilation with Limited Ensembles via Machine Learning-Based Covariance Correction
An MLP predicts the covariance difference between limited and large ensembles and applies an element-wise scaling correction to the EnKF forecast covariance, yielding higher analysis accuracy on Lorenz-63 and Lorenz-96 systems.