APCCCli PAS MultiInstitutional HFP Data Production Cli PAS

APCC/Cli. PAS Multi-Institutional HFP Data Production Cli. PAS

Updated and completed the four-season multiinstitutional retrospective forecast experiments Current Status of Multi-Institutional Retrospective Forecast Experiments Ø The APCC/Cli. PAS team completed the four-season multi-institutional retrospective forecast experiments for the period 1979 -2004 for advancing our understanding of climate predictability and determining the capability and limitations of the MME prediction. We collected 7 two-tier and 7 one-tier predictions from 12 institutions in Korea, USA, Japan, China, and Australia. Cli. PAS

Model Descriptions of Cli. PAS System APCC/Cli. PAS Tier-1 Models Institute AGCM Resolution OGCM Resolution Ensemble Member Reference BMRC BAM v 3. 0 d T 47 L 17 ACOM 2 0. 5 -1. 5 o latx 2 o lon L 25 10 Zhong et al. , 2005 FRCGC ECHAM 4 T 106 L 19 OPA 8. 2 2 o cos(lat)x 2 o lon L 31 9 Luo et al. (2005) GFDL AM 2. 1 2 olatx 2. 5 olon L 24 MOM 4 1/3 olatx 1 olon L 50 10 Delworth et al. (2006) NASA NSIPP 1 2 o latx 2. 5 o lon L 34 Poseidon V 4 1/3 o lat x 5/8 o lon L 27 3 Vintzileos et al. (2005) NCEP GFS T 62 L 64 MOM 3 1/3 o lat x 1 o lon L 40 15 Saha et al. (2005) SNU T 42 L 21 MOM 2. 2 1/3 o lat x 1 o lon L 32 6 Kug et al. (2005) UH ECHAM 4 T 31 L 19 UH Ocean 1 o lat x 2 o lon L 2 10 Fu and Wang (2001) APCC/Cli. PAS Tier-2 Models Institute AGCM Resolution Ensemble Member SST BC Reference FSUGCM T 63 L 27 10 SNU SST forecast Cocke, S. and T. E. La. Row (2000) GFDL AM 2 2 o lat x 2. 5 o lon L 24 10 SNU SST forecast Anderson et al. (2004) IAP LASG 2. 8 o lat x 2. 8 o lon L 26 6 SNU SST forecast Wang et al. (2004) NCEP GFS T 62 L 64 15 CFS SST forecast Kanamitsu et al. (2002) SNU/KMA GCPS T 63 L 21 6 SNU SST forecast Kang et al. (2004) UH CAM 2 T 42 L 26 10 SNU SST forecast Liu et al. (2005) UH ECHAM 4 T 31 L 19 10 SNU SST forecast Roeckner et al. (1996) Cli. PAS

Monthly Data Availability 1. Cli. PAS one-tier predictions: BMRC (BMRC POAMA 1. 5), GFT 1 (GFDL CM 2. 1), NASA (NASA), NCEP (NCEP CFS), SINT (SINTEX-F), SUT 1 (SNU Coupled Model), UHT 1 (UH Coupled Model) 2. Cli. PAS two-tier predictions FSU 2 (FSU AGCM), GFDL (GFDL AM 2), IAPL(IAP/LASG AGCM), NCT 2 (NCEP GFS), SUT 2 (SNU AGCM), UHC 2 (UH CAM 2), UHT 2 (UH ECHAM 4) 3. DEMETER one-tier predictions CERF(CERFACS), ECMW(ECMWF), INGV(INVG), LODY(LODYC), MAXP(MPI), METF(Meteo-France), UKMO(Met Office) 4. Variables: F 200 (200 h. Pa streamfunction), F 850 (850 h. Pa streamfunction), P 200 (200 h. Pa velocity potential), P 850 (850 h. Pa velocity potential), PRCP (precipitation), TS 2 M (2 m air temperature), U 200 (200 h. Pa zonal wind), U 850 (850 h. Pa zonal wind), V 200 (200 h. Pa meridional wind), V 850 (850 h. Pa meridional wind), SST (sea surface temperature), Z 500 (500 h. Pa geopotential height), MSLP (mean sea level pressure) 5. Data format 2. 5 x 2. 5 degree interval over global domain (144 x 73 grids) Little endian binary format with control file Cli. PAS

Structure of Monthly Data Directory Cli. PAS F 200 F 850 P 200 P 850 PRCP TS 2 M U 200 U 850 V 200 V 850 SST Z 500 MSLP OBS Monthly variables PSKILL APCC BMRC: BMRC Tier 1 FSU 2: FSU Tier 2 GFDL: GFDL Tier 2 GFT 1: GFDL Tier 1 IAPL: IAP Tier 2 NASA: NASA Tier 1 NCEP: NCEP CFS Tier 1 NCT 2: NCEP Tier 2 SINT: SINTEX-F Tier 1 SUT 1: SNU Tier 1 SUT 2: SNU Tier 2 UHC 2: UH CAM Tier 2 UHT 1: UH Tier 1 UHT 2: UH ECHAM Tier 2 DMME MMES CERF: CERFACE ECMW: ECMWF INGV: INGV LODY: LODYC MAXP: MPI METF: Meteo-France UKMO: UK Met Office APCC: APCC MME and each model ensemble prediction DMME: DEMETER MME and each model ensemble prediction TMME: MME using APCC and DEMETER models Data resolution: 2. 5 x 2. 5 degree interval over global domain (144 x 73 grids) Writing format: Binary (little endian) file with data control file Variables (monthly data): F 200 (200 h. Pa streamfunction), F 850 (850 h. Pa streamfunction), P 200 (200 h. Pa velocity potential), P 850 (850 h. Pa velocity potential), PRCP (precipitation), TS 2 M (2 m air temperature), U 200 (200 h. Pa zonal wind), U 850 (850 h. Pa zonal wind), V 200 (200 h. Pa meridional wind), V 850 (850 h. Pa meridional wind), SST (sea surface temperature), Z 500 (500 h. Pa geopotential height) Cli. PAS

Cli. PAS/APCC Tier-1 HFP Initial month, the length of forecast lead time and the number of ensemble member Initial month 1 2 3 4 5 6 7 8 9 10 11 12 Institution BMRC (1980 -2002) 9 mon 10 ens FRCGC (1982 -2004) 6 mon 9 ens GFDL (1979 -2005) 12 mon 10 ens 6 mon 3 ens NASA (1980 -2004) NCEP (1981 -2003) 8 mon 15 ens 8 mon 15 ens 6 mon 3 ens 8 mon 15 ens 8 mon 15 ens SNU (1960 -2004) 7 mon 6 ens UH – ECAM (1982 -2004) 12 mon 10 ens 8 mon 15 ens Cli. PAS

Cli. PAS/APCC Tier-2 HFP Initial month, the length of forecast lead time and the number of ensemble member Initial month 1 2 3 4 5 6 7 8 9 10 11 12 Institution FSU (1979 -2004) 5 mon 10 ens GFDL (1990 -2000) 5 mon 10 ens IAP (1979 -2004) 6 mon 6 ens NCEP (1981 -2004) 6 mon 15 ens SNU (1979 -2004) UH – CAM 2 (1979 -2004) UH - ECAM (1979 -2004) 4 mon 6 ens 6 mon 10 ens 4 mon 6 ens 4 mon 6 ens 6 mon 10 ens Cli. PAS

Cli. PAS/APCC HFP Daily DATA Variables TS PREC U 850 V 850 U 200 V 200 TS 2 M OLR o o Z 500 Institution NCEP (JJA, DJF, 17 GB/Sea) o GFDL CM 2. 1 (MAM, JJA, SON, DJ F, 40 GB/Sea) o o o o o NASA (JJA, DJF, 5 GB/Sea) o o SNU T 1 (JJA, DJF, 8 GB/Sea) o o SNU T 2 (JJA, DJF, 11 GB/Sea) o o UH – CAM 2 (JJA, DJF, 14 GB/Sea) 0 0 FSU (JJA, DJF, 14 GB/Sea) o o o o 0 0 0 o o o Cli. PAS