[CF-metadata] ensemble dimension

From: John Graybeal <jbgraybeal>
Date: Tue, 23 Mar 2010 16:12:13 -0700

based on the definitions it would be nice to see source_institution
(or institution_where_produced) and source_method (or
source_provenance), in order to avoid collisions. just a thought, I
know it's not CF-ish to imagine far-flung-future problems so feel free
to ignore it!

john

On Mar 23, 2010, at 12:11, Jonathan Gregory wrote:

> Dear John
>
>> it sounds like a modest proposal is to recommend either of
>> these attributes to identify the ensemble coordinate variable:
>>
>> axis = "ensemble";
>> standard_name = "realization";
>>
>> with the idea of keeping it simple.
>
> For auxiliary coordinate variables of the ensemble axis,
>> other standard names suggested are:
>>
>> experiment_id, source, forcing, experiment, model, institution
>
> To keep it simple again, I'd vote for just source and institution,
> which
> correspond to these existing global attributes of CF:
> institution
> Specifies where the original data was produced.
> source
> The method of production of the original data. If it was model-
> generated,
> source should name the model and its version, as specifically as
> could be
> useful.
> But that doesn't have to be part of the trac proposal, as these are
> proposals
> for new standard names. The trac proposal could just say that the
> ensemble
> axis could have auxiliary coordinate variables supplying information
> about the
> ensemble members. When they come from different models, aux coord
> variables
> are probably a better way to describe than a coord variable of
> "realization",
> I suppose.
>
Received on Tue Mar 23 2010 - 17:12:13 GMT