[CF-metadata] Standard Name and units compatibility

From: Jonathan Gregory <j.m.gregory>
Date: Mon, 29 Jun 2015 16:23:01 +0100

Dear Sebatien

> According to the FAQ, units must be compatible with (that is,
> convertible to) the canonical units of the standard name.
> But in the example, "seconds since 2007-11-07 17:54:00 +0000" cannot
> be converted into "seconds". (according to udunits)
>
> Could a variable with 'time' as its standard name have a unit of the
> form 'time-unit since timestamp' ?

I think the time-unit in this case is really seconds. The udunits string
contains the unit and a reference time. Perhaps we should clarify this in
the FAQ. It is OK to use the standard_name of time whether or not there is
a reference time.

Best wishes

Jonathan
Received on Mon Jun 29 2015 - 09:23:01 BST