Basic Propetries

Issue frequency

 Monthly

Spatial coverage

 Global

Resolution

 Temporal resolution : Monthly mean
 Spatial resolution: 2.5¡Æ x 2.5¡Æ

Ensemble size

 20 members

Lead time

 3 weeks

Output type

 Images and GRIB-2

Variables

 Surface (2m) Temperature anomaly (K)
 200 and 500 hPa height anomaly (gpm)
 Mean sea level Pressure anomaly (hPa)
 850 hPa Temperature anomaly (K)
 Total Precipitation anomaly (mm/day)
 Sea Surface Temperature anomaly (K)


     Hindcast information (SMIP2/HFP)

SMIP2/HFP Experiment

Experiment design

 32-year integration (1979-2010)
 4-month integration for each case

Ensemble member

 20 ensemble members

Initial member

 20 members: 3rd~7th day of each month (00, 06,12,18UTC)

Integration time

 160 days

Initial condition

Atmosphere

 NCEP/NCAR reanalysis (U,V,T,q,Ps)

Land surface

 Climatology

Boundary condition

SST and sea ice

 Predicted SST using dynamical and statistical prediction model

Etc.

 Same as SMIP2



     Verification Information

All data are verified using the¡¡Standard Verification System (SVS) for Long Rang Forecasts (LRF) defined in the WMO Manual on the Global Data-Processing System (attachment II.8).
Verification Results can be seen in WMO Lead Centre for the Long Range Forecast Verification System website (http://www.bom.gov.au/wmo/lrfvs)

Verifying Datasets

Variables

Climatology

Resolution

Period

500hPa, MSLP
850hPa Temperature
2m Temperature

NCEP-DOE2

2.5¡Æ¡¿2.5¡Æ

1979~2010

Precipitation

CAMS-OPI

2.5¡Æ¡¿2.5¡Æ

1979~2010

SST

ERSST
OISST

2.5¡Æ¡¿2.5¡Æ

ERSST (1979-1981)
OISST (1982-2010)


Verification Level : Level 1 and Level 2

Level1

Variables

Domain

Diagnostic Forecast

Seasons

500hPa

Global
N.H (20¡ÆN~90¡ÆN)
Tropics (20¡ÆN~20¡ÆS)
S.H (20¡ÆS¡¿90¡ÆS)

Bulk MSSS

12 rolling 3-month

MSLP

850hPa Temperature

2m Temperature

Precipitation anomaly

SST

60¡ÆN¡¿60¡ÆS



Level2

Variables

Domain

Diagnostic Forecast

Seasons

500hPa

2.5¡Æ¡¿2.5¡Æ
(Global)

MSSS
Anomaly Correlation
Amplitude error
Bias error

12 rolling 3-month

MSLP

850hPa Temperature

2m Temperature

Precipitation anomaly

SST