The system is numerical 

System produces probabilistic forecasts

Model type and resolution: Semi-Lagrangian, 1.125°lat x 1.40625°lon/L28 
      (for more details see System_Info_HMC.doc)

Ensemble size: 10 members 

Boundary conditions specifications: persistent SST anomalies

List of parameters being assessed: t2m, prec (submitted to LC SVS); also: T850, Z500, SLP (not submitted)  

List of regions for each parameter. For all parameters: Northern Extratropics, Tropics, Southern Extratropics (see Manual)  

Lead times available for each parameter. For all submitted: 1 month 

Period of verification: 1981 - 2002 for MAM, JJA, SON; 1980 - 2001 as of December for DJF 

Number of hindcasts (available) and the dates/years of these hindcasts: 25 full years (Jan.1979 - Feb.2004) 

Details of verification data sets used: t2m of UKMO/CRU, PREC of CMAP 

If different from standard, the resolution of fields used:
    Standard, hindcast data were interpolated to 2.5 x 2.5 grid prior to verification