Assessment of CFSRR medium range forecast skill

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Definitions • GFS – Global Forecast System • GDAS – Global Data Assimilation System • 4xdaily 384 hr global forecasts (GFS) • CFS • R1 – NCEP/NCAR Reanalysis I (1948 ->) • Kalnay, et.al. 1996 • Kistler, et.al. 2001 • Baseline to GFS • CDAS - Climate Data Assimilation System • Continuation of R1 • R2 - NCEP/NCAR Reanalysis II (1979 ->) • Kanamitsu et.al. 2002 • Input to current CFS • Spectral Statistical Interpolation (SSI) • GFS to May 2007 • R1 and R2 • Gridded Statistical Interpolation (GSI) • CFSRR and GFS after May 2007 • SSI R1 and R2 • CFSRR – Coupled Forecast System (CFS) reanalysis and reforecast
Polar Orbiter Satellite Profiles • RTOVS (1979-1998) • TIROS-N, N06,…,N14 (N13 launch failure) • HIRS2(19) , MSU(4) , SSU(3)-omitted from N10, N12 • ATOVS (1998 - • N15, N16, N17 • HIRS3(19), AMSUA(15), AMSUB(5) • N18, N19 • HIRS4(19), AMSUA(15), MHS(5) • Hyperspectral (thousands of channels…) • AQUA AIRS • Metop-a IASI • Retrievals • Fred Shuman, director NMC circa 1960’s , • “Make it look like a rawindsonde” • GFS to 1998 • R1 and R2, 250 km, 15 pressure levels (same as in 1979)
Page 1 and 2: Medium Range Forecast Skill CFSRR,
Page 3: Acknowledge other Reanalyses • Th
Page 7 and 8: 1994, Start of R1 • GFS T126L28 5
Page 9 and 10: 1998 - 2003 • 2000 T170L42 500 mb
Page 11 and 12: CFSRR Lite 500 mb 5 Day Forecasts
Page 13 and 14: CFSRR Full vs Lite • ATOVS appear
Page 15 and 16: CFSRR vs R1 500 mb 5 Day Forecasts
Page 17 and 18: Future ? • Replace 1948 -1978 R1
Page 20: 500 mb 5 Day Forecasts 90 NH CFSRR

Assessment of CFSRR medium range forecast skill

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