Local definition 20: 4D variational increments

Local definitions

Octet Key Type Contents
6-7 localDefinitionNumber unsigned ECMWF local GRIB use definition identifier. 20 = 4D variational increments
8-9 class codetable Class
10-11 type codetable Type =33(4D variational increments)
12-13 stream codetable Stream
14-17 experimentVersionNumber ksec1expver Version number or experiment identifier. (4 ASCII characters, right justified)
18 iterationNumber unsigned Iteration
19 totalNumberOfIterations unsigned Total number of iterations