Model skill evaluation
How important is the performance of the single variables?
How important is the annual and seasonal performance?
Which skill scores (w.r.t. the reference data) are important?2The combined model performance index summarizes the root mean square differences for multiple variables (following Gleckler et al. 2008: Performance metrics for climate models, J. Geophys. Res., 113, D06104, doi:10.1029/2007JD008972). Here, it is normalised with respect to the median rmse within the full ensemble.