Summary of cycle 47r1

Implementation date2020-07-13 
Detailed description of changes

Implementation of IFS Cycle 47r1 

Key characteristics of our forecasting system

Key characteristics of our forecasting system


Horizontal (unchanged)

Vertical (unchanged)

Data set affected
  • HRES
  • ENS
  • Tropical cyclone track
Score card

The new model cycle brings improvements throughout the troposphere in the order of 0.5% in extra-tropical upper-air forecasts. The improvements are most apparent in the ENS scores, both against own analysis and against observations.

Scorecards presenting the new cycle performance are regularly updated: 

Meteorological changesThe changes in this model cycle cover the Data Assimilation, treatment of observations and improvements to the model itself
Meteorological impact
  • New metrics for Tropical cyclones 
  • Convective inhibition 
  • EFI
  • Evaluation  
Technical changes
  • GRIB encoding
  • BUFR encoding
  • Software
Model ID
  • Atmospheric: 151
  • Ocean wave: 116

New and changed parameters 

  • HRES
  • ENS
  • Tropical Cyclone track
Discontinued disseminated model outputNot applicable 
e-suite experiment number74