On Fri, Mar 25, 2011 at 6:54 PM, John Caron <caron at unidata.ucar.edu> 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
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>
--
Dr. M. Benno Blumenthal benno at iri.columbia.edu
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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Received on Fri Mar 25 2011 - 18:36:49 GMT
