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Assessment of CFSRR medium range forecast skill

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1998 - 2003<br />

• 2000 T170L42<br />

500 mb 5 Day Forecasts<br />

• 2003 T254L64<br />

• TC relocation<br />

90<br />

• Continual GDAS/SSI<br />

improvements<br />

• 06Z/18Z upgrades<br />

• Longer obs cut<strong>of</strong>f<br />

• Full fcsts<br />

• Physics Upgrades<br />

• Cloud water<br />

• Momentum mixing<br />

• Snow<br />

• AER longwave radiation<br />

• CFS model<br />

• T62L64<br />

• R2 Analysis<br />

• GFS Physics<br />

80<br />

70<br />

60<br />

50<br />

40<br />

1979 1984 1989 1994 1999<br />

NH GFS<br />

SH GFS<br />

NH CDAS/Reanl<br />

SH CDAS/Reanl

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