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Deterministic MME

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Biased ensemble mean

The simple ensemble method with biased data is given by
math_image1
where, Eb is the biased ensemble mean, N number of models, Fi is the ith model forecast out of N models.

Bias-corrected ensemble mean

The simple ensemble method with bias-corrected data is defined as
math_image2
Eb is the bias-corrected ensemble mean,segment Fi is the mean of i-th forecast over the training period,segment O is the observed mean over the training period. The systematic errors for forecast models can be removed due to anomaly term, (Fi-segment Fi), which accounts model's own seasonal climatology.
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