[CF-metadata] NMAT

From: Jonathan Gregory <j.m.gregory>
Date: Fri, 1 Dec 2006 18:51:27 +0000

Dear Julian

I have two issues concerning your two standard names!

assuming_night: I think it would be more appropriate to regard an average over
night as a particular kind of time-processing rather than an assumed condition.
I would therefore suggest a cell_methods entry of "time: mean (night)". That
is legal, but not standardised, since most things in () in cell_methods are
regarded as comments. If it is commonly needed, "night" could be standardised.

anomaly: At present there are four "anomaly" standard names in the table, but
I tend to think that they are a mistake to have included, because (a) it is
not well defined what "anomaly" means and (b) every quantity might be
anomalised, doubling the size of the stdname table. For other cases like (b)
we introduced standard name modifiers, so I would propose we introduce a
modifier of "difference_from_climatology", which is more explicit than
"anomaly". You would then use
standard_name="air_temperature difference_from_climatology".

What do you think?

Best wishes

Jonathan
Received on Fri Dec 01 2006 - 11:51:27 GMT