A Comparison of GFX Analyses and Forecasts to Other Centers

 

April 2007

 

Height

 

500 hPa

 

12 hour errors

 

GFS

GFX

 

1 day errors

 

GFS

GFX

 

Time-Mean Differences between Analyses

 

GFX-GFS

 

RMS

 

12 hour errors

 

GFS

GFX

 

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

JMA

 

Difference in analyses

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFX-JMA

 

GFS-UK

EC-GFS

EC-UK

 

 

RMS Error

 

Zonal mean-12h

 

Zonal mean-1day

 

Zonal mean JMA-1day

 

40-60N-12 hours

 

40-60N-1day

 

40-60N JMA-1day

 

12hour

 

GFS

EC

GFX

UK

FNOC

 

Differences in 12 hour RMS errors

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

 

1 day

 

GFS

EC

GFX

UK

FNOC

JMA

 

Differences in 1 day RMS errors

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFX-JMA

 

RMS Difference-Analyses

 

Zonal mean

 

Zonal mean-JMA

 

Zonal mean-ocean

 

Zonal mean-JMA-ocean

 

40-50N

 

40-50N JMA

 

Regional

 

GFX-GFS

GFX-JMA

 

GFS-UK

EC-GFS

EC-UK

 

 

Wind Magnitude

 

Zonal means

 

Analyses

 

GFS

EC

GFX

UK

FNOC

 

12 hour errors

 

GFS

EC

GFX

UK

FNOC

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

Time-Mean Differences between Analyses

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 12 hour foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

30-40N

 

Analyses

 

GFS

EC

GFX

UK

FNOC

 

12 hour errors

 

GFS

EC

GFX

UK

fnmoc

 

1 day errors

 

GFS

EC

GFX

UK

fnmoc

 

Time-Mean Differences between Analyses

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 12 hour foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Equator

 

Analyses

 

GFS

EC

GFX

UK

FNOC

 

12 hour errors

 

GFS

EC

GFX

UK

FNOC

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

Time-Mean Differences between Analyses

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 12 hour  foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

200 hPa

 

30-40N

 

Analyses

 

GFS

EC

GFX

UK

FNOC

 

12 hour  errors

 

GFS

EC

GFX

UK

FNOC

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

Time-Mean Differences between Analyses

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 12 hour  foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

850 hPa

 

Analyses

 

GFS

EC

GFX

UK

FNOC

 

12 hour errors

 

GFS

EC

GFX

UK

FNOC

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

Time-Mean Differences between Analyses

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 12 hour foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

RMS Wind Error

 

Zonal means

 

12 hour errors

 

GFS

EC

GFX

UK

FNOC

 

200 hPa

850 hPa

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

200 hPa

850 hPa

 

Time-Mean Differences between 12 hour  foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

20S-20N

 

12 hour errors

 

GFS

EC

GFX

UK

FNOC

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

Time-Mean Differences between 12 hour foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

 

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

 

 

 

200 hPa

 

12 hour errors

 

GFS

EC

GFX

UK

FNOC

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

Time-Mean Differences between 12 hour foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

850 hPa

 

12 hour errors

 

GFS

EC

GFX

UK

FNOC

 

1 day errors

 

GFS

EC

GFX

UK

FNOC

 

Time-Mean Differences between 12 hour foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

Time-Mean Differences between 1-day foregfssts

 

GFX-GFS

GFX-EC

GFX-UK

GFX-FNOC

GFS-UK

GFS-EC

EC-UK

 

 

 

Wind

 

Western Hemisphere

 

200

 

GFS anl

EC anl

GFX anl

MO anl

FNMOC anl

GFS 12hr

EC 12hr

GFX 12hr

MO 12hr

FNMOC 12hr

GFS 1dy

EC 1dy

GFX 1dy

MO 1dy

FNMOC 1dy

GFS 12hr error

EC 12hr error

GFX 12hr error

MO 12hr error

FNMOC 12hr error

GFS 1dy error

EC 1dy error

GFX 1dy error

MO 1dy error

FNMOC 1dy error

GFX-GFS anl

GFX-EC anl

 

GFX-MO anl

GFX-FNOC anl

GFX-GFS 12hr

GFX-EC 12hr

 

GFX-MO 12hr

GFX-FNOC 12hr

GFX-GFS 1dy

GFX-EC 1dy

 

GFX-MO 1dy

GFX-FNOC 1dy

 

500

 

GFS anl

EC anl

GFX anl

MO anl

FNMOC anl

GFS 12hr

EC 12hr

GFX 12hr

MO 12hr

FNMOC 12hr

GFS 1dy

EC 1dy

GFX 1dy

MO 1dy

FNMOC 1dy

GFS 12hr error

EC 12hr error

GFX 12hr error

MO 12hr error

FNOC 12hr error

GFS 1dy error

EC 1dy error

GFX 1dy error

MO 1dy error

FNOC 1dy error

GFX-GFS anl

GFX-EC anl

 

GFX-MO anl

GFX-FNOC anl

GFX-GFS 12hr

GFX-EC 12hr

 

GFX-MO 12hr

GFX-FNOC 12hr

GFX-GFS 1dy

GFX-EC 1dy

 

GFX-MO 1dy

GFX-FNOC 1dy

 

850

 

GFS anl

EC anl

GFX anl

MO anl

FNMOC anl

GFS 12hr

EC 12hr

GFX 12hr

MO 12hr

FNMOC 12hr

GFS 1dy

EC 1dy

GFX 1dy

MO 1dy

FNMOC 1dy

GFS 12hr error

EC 12hr error

GFX 12hr error

MO 12hr error

FNOC 12hr error

GFS 1dy error

EC 1dy error

GFX 1dy error

MO 1dy error

FNOC 1dy error

GFX-GFS anl

GFX-EC anl

 

GFX-MO anl

GFX-FNOC anl

GFX-GFS 12hr

GFX-EC 12hr

 

GFX-MO 12hr

GFX-FNOC 12hr

GFX-GFS 1dy

GFX-EC 1dy

 

GFX-MO 1dy

GFX-FNOC 1dy

 

Transient eddy kinetic energy

 

Zonal Mean

 

200 anl

200 12hr

200 1dy

850 anl

850 12hr

850 1dy

 

Zonal Mean 12 Hour Errors

 

GFS

EC

GFX

FNOC

MO

 

Zonal Mean 1-Day Errors

 

GFS

EC

GFX

FNOC

MO

 

Zonal Mean Differences

 

ANL

GFX-GFS

GFX-EC

GFX-FNOC

GFX-MO

12 hour

GFX-GFS

GFX-EC

GFX-FNOC

GFX-MO

1 day

GFX-GFS

GFX-EC

GFX-FNOC

GFX-MO

 

20S-20N Differences

 

ANL

GFX-GFS

GFX-EC

GFX-FNOC

GFX-MO

12 hour

GFX-GFS

GFX-EC

GFX-FNOC

GFX-MO

1 day

GFX-GFS

GFX-EC

GFX-FNOC

GFX-MO