[CF-metadata] Two-variable integer Time in CF?

Sue Dettling dettling at ucar.edu
Mon Nov 5 06:51:59 MST 2007


Hello,
In addition to time and forecast_reference_time, MIT Lincoln Labs
and NCAR/RAL have agreed to extend the CF convention with time variables
start_time, end_time, and forecast_period to adequately describe 
our datasets. Please consider these variable names in your 
discussion. 

Thanks,
Sue

On Mon, Nov 05, 2007 at 10:18:09AM +0000, Jonathan Gregory wrote:
> Dear Frank
> 
> > Currently, people are using the CF time string for any one of the time
> > fields I mentioned. So far, it is left unspecified as to what the time
> > value actually represents. The start?, the middle? the end?. In the
> > future, CF compliance should require the use of more than one, ambigious,
> > time stamp.
> 
> I think the best way to address that is to give the various times different
> standard names. We currently have only "time" and "forecast_reference_time" in
> the standard name table, but there is no reason not to define other kinds of
> time. Just as there are many physically distinct quantities measured in W m-2,
> distinguished by standard name, so there are many different quantities with
> time units.
> 
> best wishes
> 
> Jonathan
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