A serious problem in the initialization of a climate forecast model is the
model-data incompatibility caused by systematic model biases. Here we use t
he Lament model to demonstrate that these biases can be effectively reduced
with a simple statistical correction, and the bias-corrected model can hav
e a more realistic internal variability as well as an improved forecast per
formance. The results reported here should be of practical use to other oce
an-atmosphere coupled models for climate prediction.