Examining Ensemble Means

Verification using ensemble means can provide a general look at the forecast performance. Remember, with ensemble means you are making a deterministic forecast out of ensemble forecasts. The range of solutions seen in the ensemble spread is removed.

But for a general impression of the forecast system over time, this may be a good first option.

We will look at the Root Mean Squared Error (RMSE), the Mean Error (ME) which is sometimes called the additive bias, and the Correlation Coefficient (CC).

Ensemble Mean and Spread