A Comparison of GFS Analyses and Forecasts to ECMWF

 

April 2005

 

Height

 

Zonal means

 

Errors

 

 

Differences GFS-EC

 

 

500 hPa

 

Zonally Asymmetric

 

 

Errors

 

 

Differences GFS-EC

 

 

Temperature

 

Zonal mean

 

Errors

 

 

Differences GFS-EC

 

 

Equator

 

Errors

 

 

Differences GFS-EC

 

 

850 hPa

 

Zonally Asymmetric

 

 

Errors

 

 

Differences GFS-EC

 

 

700 hPa

 

Zonally Asymmetric

 

 

Errors

 

 

Differences GFS-EC

 

 

Wind Magnitude

 

Zonal means

 

 

Errors

 

 

Differences in Time-Mean Wind Manitude GFS-EC

 

 

Time-Mean Difference In Wind Magnitude (RMS) GFS-EC

 

 

27.5-32.5N

 

Differences in Time-Mean Wind Manitude GFS-EC

 

 

Equator

 

Differences in Time-Mean Wind Manitude GFS-EC

 

 

45S

 

Differences in Time-Mean Wind Manitude GFS-EC

 

 

100 hPa

 

Differences in Time-Mean Wind Magnitude GFS-EC

 

 

Time-Mean Difference In Wind Magnitude (RMS) GFS-EC

 

 

 

250 hPa

 

Zonal Mean

 

 

Time-Mean Wind Magnitude

 

 

Errors

 

 

Differences in Time-Mean Wind Manitude GFS-EC

 

 

300 hPa

 

Time-Mean Difference In Wind Magnitude (RMS) GFS-EC

 

 

Transient Eddy Kinetic Energy

 

 

Zonal means

 

 

Errors

 

 

Differences GFS-EC

 

 

 

250 hPa

 

Time means

 

 

Errors

 

 

Differences GFS-EC

 

 

 

Meridional wind

 

Zonal means

 

 

Errors

 

 

Differences in Time-Mean Wind Manitude GFS-EC