Seasonal Forecast Isentropic Level Monthly Data Set

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

General information:

• The monthly mean of each member of an ensemble of forecasts from 0000 UTC on the first day of each month for months 1 to 6;
• The months are the six calendar months for each forecast;
  

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;
• 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) :

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