Two algorithms that rebuild a state error covariance from a single state estimate achieve analysis RMSE 0.235 and 0.181 in the standard Lorenz-96 test, compared with 0.180 for a tuned ensemble Kalman filter.
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On building the state error covariance from a state estimate
Two algorithms that rebuild a state error covariance from a single state estimate achieve analysis RMSE 0.235 and 0.181 in the standard Lorenz-96 test, compared with 0.180 for a tuned ensemble Kalman filter.