alias mars.origin = centre;

meta    forecastperiod    g1fcperiod(P1,P2,timeRangeIndicator,indicatorOfUnitOfTimeRange) : no_copy;
alias   mars.fcperiod = forecastperiod;

meta marsQuantile sprintf("%d:%d",perturbationNumber,numberOfForecastsInEnsemble);
alias   mars.quantile = marsQuantile;

# TODO: Check why they are set in the first place
unalias mars.step;
unalias mars.number;

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