# assert(local=1)
meta verificationDate         g1verificationdate(dataDate, dataTime, endStep) : read_only;
meta monthlyVerificationDate  g1monthlydate(verificationDate) : dump,no_copy;
alias mars.date             = monthlyVerificationDate;

meta verificationYear          evaluate(verificationDate/10000);
meta monthlyVerificationYear   evaluate(monthlyVerificationDate/10000);
meta verificationMonth         evaluate( (verificationDate/100)%100 );
meta monthlyVerificationMonth  evaluate( (monthlyVerificationDate/100)%100 );

# class e4
# constant six = 6;

# There was some forecast data produced incorrectly for stream=edmm with class=em
# An exception is required for backward compatibility for the wrongly encoded data
# See GRIB-422, GRIB-497, GRIB-833
#
if (class is "em" || class is "e2" || class is "ea" || class is "ep" ||
    class is "rd" || class is "mc" || class is "et" || class is "l5")
{
   alias mars.step = endStep;
}
else
{
   alias mars.step = startStep;
}

alias mars.number=perturbationNumber;
