eccodes/definitions/mars/grib.mmsa.fcmean.def

alias mars.origin = centre;
alias mars.fcmonth = marsForecastMonth;
unalias mars.step;
alias mars.number = perturbationNumber;

alias mars.method = methodNumber;
if (class is "od") { alias mars.system = systemNumber; }
if (class is "c3") { alias mars.system = systemNumber; }