Information of the forecast/hindcasts system
 (More details are on http://ds.data.jma.go.jp/tcc/tcc/products/model/index.html)
 
1)Whether the system is numerical, empirical or hybrid
    Numerical
2)Whether the system is deterministic or probabilistic
    Probabilistic
3)Model type and resolution
    Two-tiered method is used. The atmospheric model is TL95L40 version of the Global Spectral Model used for a short- and medium-range  forecast in JMA. 
4)Ensemble size
    51 members for forecast and 11 members for hindcast
5)Boundary conditions specifications
    SST: Combination of persisted anomalies, climatology and prediction with the JMA's El Nino prediction model(atmosphere-ocean coupled model; CGCM)
6)List of parameters being assessed
   T2m (temperature at 2metres) and prp (precipitation)
7)Lead times and for each parameter
   21-days
8)Period of verification
   three-month
9)Number of hindcasts and the dates/years of these hindcasts
   22 years from 1984 to 2005. Initial date is 10th every month.
10) Details of verification data sets used
   T2m: JRA-25.
   Precipitation: GPCP (GPCP Version 2 Combined Precipitation Data Set).  If once the dataset has a missing data during the hindcast period, statistics are not calculate.