4. Model Uncertainties perturbations:

Model dynamics perturbations	None
Model physics perturbations	Stochastic perturbation of 18 parameters (SPP). Modified parameter values and ranges are based on simulated climatology and variability (e.g., tropical waves) and forecast skill
If there is a control forecast, is it perturbed?	No

Detailed documentation:

5. Forecast system and hindcasts

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