Dear Jon > 2. Representing the variability of a quantity within a time period (e.g. > expressing the annual mean plus a measure of the spread of values around the > mean). > I assume that (2) is solved by using cell methods on the time axis (e.g. > cell_methods = “t: mean” or “t: standard_deviation” etc). Please correct me > if I’m wrong!
Quite right. The time period is recorded using bounds of the time coord var. > 1. Representing the mean and spread of an ensemble of simulations (i.e. > boiling down a set of ensemble members to two variables: mean and spread). > For (1) should I use a standard name modifier? If so, is there a reason why > “mean” and “standard deviation” are not listed as standard name modifiers? > “Standard error” is listed, but this is different from standard deviation, > and I think that what I will need is probably a standard deviation. You can do this with cell_methods in exactly the same way, "e: mean" and "e: standard_deviation" where e is the ensemble dimension. If you don't have an ensemble dimension, you could put "realization: mean" and "realization: standard_deviation", since "realization" is a standard_name for ensemble member designators. Best wishes Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
