[CF-metadata] What do models assume for the shape of the Earth?

[Jonathan Gregory]

> Having said that, one day they will (maybe as mesoscale models are at the km 
> resolution now, they already are), so it's a great idea to be asking the 
> question now. So it's not so much does the information get recorded, but if 
> we did, where would we put it?

I'd say this kind of information is definitely in the category of metadata
about the model, rather than describing/defining the model-generated data.
It lies in the province of discovery metadata, GO-ESSP, etc. rather than CF.

Jonathan