The experiment setting is similar to Twin Experiment 3, but with an extra algorithm: Dud-EnKF. Like in Twin Experiment 3, the noise parameters used in the filters are identical with the ones used in generating the truth. Hence, the filters should provide the most accurate results as possibly allowed by the ensemble size (8 members).
The simulation filter took 76 hours to finish the simulation over the simulation period of 2015 (EnKF took about 59 hours).
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