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High resolution

Comparison of scores of IFS cycle 43r3 (combination of alpha and beta testing data) and IFS cycle 43r1 (the current operational cycle) verified by the respective analyses or radiosonde and SYNOP observations for the period 00 UTC on 1 June 2016 to 00 UTC on 10 May 2017 (687 forecast runs).

 

...

Table of Contents

High resolution

 Extratropical
Northern
Hemisphere
Extratropical
Southern
Hemisphere
Tropics
 Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
AnalysisGeopotential100
  
  250
  
  500
  
  850
  
 Mean sea level pressure 
  
 Temperature100
  250
  500
  850
  1000
 Wind100
  250
  500
  850
  1000
 Relative
humidity
250
  700
  1000
 10m wind at sea 
 Significant wave height 
 Mean wave period 
ObservationsGeopotential100
  
  250
  
  500
  
  850
  
 Temperature100
  250
  500
  850
 2m temperature  
 
 
 Wind100
  250
  500
  850
 10m wind  
 
 
 Relative
humidity
250
  700
 2m dew-point  
 
 
 Total cloud cover  
 
 
 24h precipitation 
 EuropeNorthern AmericaEast Asia
 Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
AnalysisGeopotential100
  250
  500
  850
 Mean sea level pressure 
 Temperature100
  250
  500
  850
  1000
 Wind100
  250
  500
  850
  1000
 Relative
humidity
250
  700
  1000
ObservationsGeopotential100
  250
  500
  850
 Temperature100
  250
  500
  850
 2m temperature  
 
 
 Wind100
  250
  500
  850
 10m wind  
 
 
 Relative
humidity
250
  700
 2m dew-point  
 
 
 Total cloud cover  
 
 
 24h precipitation 
 Northern AtlanticNorthern Pacific
 Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
AnalysisGeopotential100
  250
  500
  850
 Mean sea level pressure 
 Temperature100
  250
  500
  850
  1000
 Wind100
  250
  500
  850
  1000
 Relative
humidity
250
  700
  1000
 10m wind at sea 
 Significant wave height 
 Mean wave period 
 East AsiaAstralia
New Zealand
 Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
AnalysisGeopotential100
  250
  500
  850
 Mean sea level pressure 
 Temperature100
  250
  500
  850
  1000
 Wind100
  250
  500
  850
  1000
 Relative
humidity
250
  700
  1000
ObservationsGeopotential100
  250
  500
  850
 Temperature100
  250
  500
  850
 2m temperature  
 
 Wind100
  250
  500
  850
 10m wind  
 
 Relative
humidity
250
  700
 2m dew-point  
 
 Total cloud cover  
 
 24h precipitation 
 ArcticAntarctic
 Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
Anomaly correlation/
SEEPS
RMS error/
Std. dev.of error
AnalysisGeopotential100
  250
  500
  850
 Mean sea level pressure 
 Temperature100
  250
  500
  850
  1000
 Wind100
  250
  500
  850
  1000
 Relative
humidity
250
  700
  1000
Observations2m temperature  
 
 10m wind  
 
 2m dew-point  
 
 Total cloud cover  
 
 24h precipitation 

Ensemble

 Extratropical
Northern
Hemisphere
Extratropical
Southern
Hemisphere
Tropics
 EM RMS errorCRPSEM RMS errorCRPSEM RMS errorCRPS
AnalysisGeopotential200
  
  500
  
  850
  
  1000
  
 Temperature200
  500
  850
 Wind speed200
  500
  850
ObservationsGeopotential500 
 
  
 Temperature850 
 
 
 Wind speed850 
 
 
 2m temperature  
 
 
 10m wind  
 
 
 24h precipitation  
 
 
 EuropeNorthern AmericaEast Asia
 EM RMS errorCRPSEM RMS errorCRPSEM RMS errorCRPS
AnalysisGeopotential200
  500
  850
  1000
 Temperature200
  500
  850
 Wind speed200
  500
  850
ObservationsGeopotential500 
 
 
 Temperature850 
 
 
 Wind speed850 
 
 
 2m temperature  
 
 
 10m wind  
 
 
 24h precipitation  
 
 
 East AsiaAstralia
New Zealand
 EM RMS errorCRPSEM RMS errorCRPS
AnalysisGeopotential200
  500
  850
  1000
 Temperature200
  500
  850
 Wind speed200
  500
  850
ObservationsGeopotential500 
 
 Temperature850 
 
 Wind speed850 
 
 2m temperature  
 
 10m wind  
 
 24h precipitation  
 
 ArcticAntarctic
 EM RMS errorCRPSEM RMS errorCRPS
AnalysisGeopotential200
  500
  850
  1000
 Temperature200
  500
  850
 Wind speed200
  500
  850
ObservationsWind speed850 
 
 2m temperature  
 
 10m wind  
 
 24h precipitation  
 

 

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Northern and Southern HemisphereImage Removed

...

Europe and Northern AtlanticImage Removed

...

Northern America and Northern PacificImage Removed

...

Arctic and AntarcticImage Removed

...

 

The score card provides a quick visual overview over the performance of the cycle 43r3 scores compared to cycle 43r1. It is a simplified summary of verify error plots for various domains, scores, parameters etc.

Each error plot is converted into a sequence of symbols (e.g. ) where each symbol indicates whether for a the given time step whether or not , score, parameter, level and domain the cycle 43r3 is significantly better or worse than the cycle 43r1 on the given level of statistical significance.

Symbol legend: for a given forecast step... (d: score difference, s: confidence interval width)
cycle 43r3 better than cycle 43r1 statistically highly significant ( with 99.7% confidence)
cycle 43r3 better than cycle 43r1 statistically significant ( with 95% confidence)
cycle 43r3 better than cycle 43r1 , yet not statistically significant ( with 68% confidence)
not really any difference between cycle 43r1 and cycle 43r3
cycle 43r3 worse than cycle 43r1 , yet not statistically significant ( with 68% confidence)
cycle 43r3 worse than cycle 43r1 statistically significant ( with 95% confidence)
cycle 43r3 worse than cycle 43r1 statistically highly significant ( with 99.7% confidence)