Dear Martin > > Do you mean you end up with one value for each day, being the largest of > > the 24 running-8-hour means within the day?
> Yes - this is correct, and there is a need for this. Whether the CF convention needs to be extended for this depends on how much you need to be recorded in standardised metadata. I assume you have a time axis with times at daily intervals, whose bounds indicate periods of a day e.g. the time coordinates might be 2011-10-18 12:00, 2011-10-19 12:00 with bounds [2011-10-18 0:00, 2011-10-19 0:00], [2011-10-19 0:00, 2011-10-20 0:00]. If the time coordinate is "time", cell_methods can record a maximum made from hourly values with "time: maximum (interval: 1 hour)". This, however, does not record that the hourly value were running 8-hour means. That could done in an unstandardised way e.g. "time: maximum (interval: 1 hour comment: hourly values were running 8-hour means)". Is it sufficient to record the information in such a way, or do you need to be able to process it automatically in order to distinguish running 8-hour means from, say, instantaneous hourly values, or means for single hours? Cheers Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
