Australian Water Information Dictionary
A statistical score used to objectively assess the performance (skill) of a model. A score can be presented absolutely or formulated as a skill score.
Skill Score =(Smod - Sref) / (Sperf - Sref)
Smod = Score for the model forecast
Sref = Score for a reference forecast, usually climatology
Sperf = Score for a perfect forecast, usually 0 or 1
This definition applies to: