Daily scores for ECMWF deterministic forecast

running mean:
365-day
91-day
31-day

Areas:
Hemispheres
Polar regions
Midlatitudes

Scores:
against own analysis:
ACC
RMSE
against ERA-Interim:
ACC
RMSE

Scores for other forecasts
  TIGGE forecasts
  ERA-Interim forecasts
  NOAA GEFS reforecasts