examples that we use 5 days since 1960-01-01 calendar 365_days (to represent pentads, though we understand pentads too) 1/365 years since 1960-01-01 calendar 365_days (equivalent to days in 365_day calendar) 1/360 years since 1960-01-01 calendar 360_days (equivalent to days in 360_day calendar) 1/12 years since 1960-01-01 calendar 360_days (the much maligned months) months since 1960-01-01 calendar 360_days (just as a reminder -- it is important to us, no matter how many people write to say months are meaningless)
Thanks for asking, Benno On Fri, Mar 25, 2011 at 9:10 PM, John Caron <[email protected]> wrote: > On 3/25/2011 6:36 PM, Benno Blumenthal wrote: > > > > On Fri, Mar 25, 2011 at 6:54 PM, John Caron <[email protected]>wrote: > >> On 3/22/2011 6:53 AM, John Caron wrote: >> >> Consider: >> >> int time(sample=1001); >> :long_name = "Measurement time"; >> :standard_name = "time"; >> :units = "days since 1970-01-01"; >> >> vs >> >> int time(sample=1001); >> :long_name = "Measurement time"; >> :standard_name = "time"; >> :units = "3 days since 1970-01-01"; >> >> values = 1, 2, 3, ... >> >> are these equivalent or does the second one mean every 3 days ? Is the >> second one illegal ? >> >> >> Im am going to assume that the second form is illegal, that is, you may >> not have a number in front of the unit in a "time coordinate unit" (CF >> section 4.4) >> > > I wish you wouldn't. We use that all the time, though mostly for 365_day > calendars. > > Benno > > > could you give an example. do you ever use non-integers ? > > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > > -- Dr. M. Benno Blumenthal [email protected] International Research Institute for climate and society The Earth Institute at Columbia University Lamont Campus, Palisades NY 10964-8000 (845) 680-4450
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