Local definition 15: Seasonal forecast data

Octet Key Type Contents
6-7 localDefinitionNumber unsigned ECMWF local GRIB use definition identifier. 15 = Seasonal forecast data
8-9 class codetable Class
10-11 type codetable Type
12-13 stream codetable Stream
14-17 experimentVersionNumber ksec1expver Version number or experiment identifier. (4 ASCII characters, right justified)
18-19 systemNumber unsigned System number The "scientific version" number. 0 = RD experiment 1 - 65534 = operational version number 65535 = missing
20-21 methodNumber unsigned Method number Distinguishes scientifically different forecast ensembles (eg different calibration/bias correction) 0 = control integration (ie without data assimilation) 1 - 65534 = operational version number