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Table 8

Averaged % improvement in the groups of verification metrics if the ensemble median prediction is used instead of deterministic forecast

% Improvementa
2009
2007
Group of verification metricsDutch coastal watersDutch Wadden SeaDutch coastal watersDutch Wadden Sea
Goodness-of-fit 28% 4% 18% 12% 
Accuracy 16% 8% 12% 7% 
Reliability 7% −13% 0% −4% 
Discrimination 6% −26% 1% −12% 
% Improvementa
2009
2007
Group of verification metricsDutch coastal watersDutch Wadden SeaDutch coastal watersDutch Wadden Sea
Goodness-of-fit 28% 4% 18% 12% 
Accuracy 16% 8% 12% 7% 
Reliability 7% −13% 0% −4% 
Discrimination 6% −26% 1% −12% 

aGroup average using the three validation datasets. The metrics within the groups are not weighted.

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