Hi Jonathan,
Using the standard_name to connect the quantity to the definition of a
dimensionless vertical coordinate has the side effect (via the
formula_terms attribute) of indicating the name of the variable that
contains the reference pressure. That's a necessary part of converting the
dimensionless coordinate to a dimensional one. You wouldn't get that by
simply using a standard_name to (partially) describe the quantity.
Brian
On Thu, Mar 09, 2006 at 08:19:22AM +0000, Jonathan Gregory wrote:
> Dear Ben
>
> I agree that the proposal is good - thanks. I would comment that the quantity
> ln(p0/p) could have a standard name which says what it is explicitly, rather
> than "atmosphere_log_pressure_coordinate". I suppose that it could be called
> "natural_logarithm_of_reciprocal_air_pressure", adding a note to the
> stdname definition about the reference pressure, since logs can only be taken
> of dimensionless quantities anyway. The other dimensionless coordinates have
> got stdnames of such-and-such coordinate because those quantities have no other
> purpose and they can't so easily be described. What do you think? Would that
> be awkward?
>
> Best wishes
>
> Jonathan
> _______________________________________________
> CF-metadata mailing list
> CF-metadata at cgd.ucar.edu
> http://www.cgd.ucar.edu/mailman/listinfo/cf-metadata
Received on Thu Mar 09 2006 - 08:41:05 GMT
