Seasonal Forecast Isentropic Level Data Set

This part includes a brief description and the order forms of this specific Data Set.

Description :

• The archive consists of two parts which are a hindcast archive from 1987 to 2001 and a current archive from 2002 onward;
• The hindcast archive for 1987 to 2000 has 5 ensemble members for each month except May and November when there are 41 ensemble members; in 2001 there are 5 ensemble members for January to April, June and July, 41 ensemble members for May and November and 40 ensemble members for August to October and December;
• The current archive (2002 onward) has 40 ensemble members for each month;
• The archive consists of an ensemble of forecasts from 0000 UTC on the first day of each month out from 12 to 4416 hours (184 days) with archiving every 12 hours;
• each value at each level is stored as a field of grid point values on a reduced N48 Gaussian grid;
• data are stored in FM 92 GRIB using sufficient bits to ensure that the values represented can be retrieved to an accuracy consistent with the analysis method used;
• Learn more about isentropic levels
  

2 isentropic levels available:

1 field available:

Order forms :

1. Instructions and Standard Order forms (common for all data sets):

24 KB

2. Data Set Order form (to select data from this specific data set only) :

3 KB