High resolution

Comparison of scores of IFS Cycle 43r1 (combination of research experiments and the current test suite) and IFS Cycle 41r2 (the current operational cycle) verified by the respective analyses or radiosonde and SYNOP observations at 00UTC for the period 12 UTC on 2 November 2015 to 12 UTC on 10 October 2016 (673 forecast runs).

Score card provides a quick visual overview over the performance of the CY43r1 scores compared to CY41r2. It is a simplified summary of verify error plots of various domains, scores, parameters etc.
Each error plot is converted into a sequence of symbols (e.g. ▼ ▾ ▾ ░ ░ ░ ░ ▴ ▲ ▲) where each symbol indicates for given time step whether or not the CY43r1 is significantly better or worse than the CY41r2.

Symbol legend: for a given forecast step... (d: score difference, s: confidence interval width)
▲ CY43r1 better than CY41r2 statistically highly significant (the confidence bar above zero by more than its height )(d/s>3)
▴ CY43r1 better than CY41r2 statistically significant (d/s≥1)
░ CY43r1 better than CY41r2, yet not statistically significant (d/s≥0.5)
░ not really any difference between CY41r2 and CY43r1
░ CY43r1 worse than CY41r2, yet not statistically significant (d/s≤-0.5)
▾ CY43r1 worse than CY41r2 statistically significant (d/s≤-1)
▼ CY43r1 worse than CY41r2 statistically highly significant (the confidence bar below zero by more than its height) (d/s<-3)