eccodes/definitions/grib2/local.98.16.def

# Local definition 16: Seasonal forecast monthly mean data

unsigned[2] systemNumber : dump;
unsigned[2] methodNumber : dump;

alias local.systemNumber=systemNumber;
alias local.methodNumber=methodNumber;

# ECC-1425
meta marsForecastMonth g1forecastmonth(dataDate, forecastTime): read_only;