Local definition 12: Seasonal forecast monthly mean data for lagged systems

Local definitions

Octet Key Type Contents
6-7 localDefinitionNumber codetable ECMWF local GRIB use definition identifier. 12 = ECMWF seasonal forecast monthly mean data for lagged systems
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 (e.g. different calibration/bias correction)
0 = control integration (i.e. without data assimilation), 1 - 65534 = operational version number
22-25 indexingDate unsigned MARS archiving date (YYYYMMDD)
26-27 indexingTime unsigned MARS archiving time (HHMM)