At the risk of getting boring... Section H.2.1 contains the sentence (emphasis added):
This has either a one-dimensional coordinate variable, time(time), provided the time values are ordered monotonically, or a one-dimensional auxiliary coordinate variable, time(o), where o is the element dimension. This seems to imply that it's possible for the time values *not* to be ordered monotonically, which is counter to the definition of a time series. My understanding is you can have either time(time) or time(o), but in both cases the values must be ordered monotonically. If that's the case I suggest simply dropping the conditional clause from the sentence to leave: This has either a one-dimensional coordinate variable, time(time), or a one-dimensional auxiliary coordinate variable, time(o), where o is the element dimension. In addition, we could add the following at the end of the paragraph: In both cases, the time values must be ordered monotonically. Thanks for your patience! Richard Hattersley AVD Iris Technical Lead Met Office FitzRoy Road Exeter Devon EX1 3PB United Kingdom Tel: +44 (0)1392 885702 Fax: +44 (0)1392 885681 Email: [email protected] Website: www.metoffice.gov.uk > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Jonathan Gregory > Sent: 10 May 2012 16:41 > To: [email protected] > Subject: Re: [CF-metadata] Reverse-time trajectory > > Dear Richard > > For timeseries I'd apply the same argument as before, that > they already > existed before sect 9 and weren't prohibited from having > reversed time axes. > By analogy it seems fine to me to allow reversed time in any case. > > Cheers > > Jonathan > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
