if ( defined(stattype) && is_one_of(stattype,"moav","momn","momx","mosd") ) {
 meta verificationDate        g1verificationdate(dataDate, dataTime, endStep) : read_only;
 meta monthlyVerificationDate g1monthlydate(verificationDate) : dump,no_copy;
 alias mars.date            = monthlyVerificationDate;
 alias monthlyVerificationTime = zero;
 meta verificationYear          evaluate(verificationDate/10000);
 meta monthlyVerificationYear   evaluate(monthlyVerificationDate/10000);
 meta verificationMonth         evaluate( (verificationDate/100)%100 );
 meta monthlyVerificationMonth  evaluate( (monthlyVerificationDate/100)%100 );
} else {
 alias monthlyVerificationTime = zero;
 alias monthlyVerificationDate = dataDate;
}

alias mars.number = perturbationNumber;

unalias mars.time;
unalias mars.step;
