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[CF-metadata] CF and a representation of probalistic forecasts

From: Steve Hankin <Steven.C.Hankin>
Date: Fri, 09 Feb 2007 10:31:40 -0800

I think Jonathan hit on the fundamental distinction when he noted:

    "since it
    isn't related to the grid or computed in any way from coordinates, but depends
    more on data variables, it isn't really a cell_measure"

Among current CF concepts closest analogy to "realization_weights" is
not a cell measure. It is a _mask_ -- a1-dimensional weighted mask that
is derived from the data. Two dimensional derived masks have been
commonplace in the analysis of COARDS and CF datasets for many years,
though they have little formal discussion in the CF document, itself.
The proper place for the "realization_weights" concept in the CF
taxonomy is to formalize the concepts behind masks, imho.

    - Steve

================================================

Bryan Lawrence wrote:
>> If the different ways of calculating realization_weights produce distinct
>> scientific quantities, as I suppose they do, then they should have
>> different standard_names, so you can tell them apart.
>>
>
> How is that different from differing methods of cell methods with the
> same standard names?
>
> Bryan
> _______________________________________________
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> CF-metadata at cgd.ucar.edu
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-- 
--
Steve Hankin, NOAA/PMEL -- Steven.C.Hankin at noaa.gov
7600 Sand Point Way NE, Seattle, WA 98115-0070
ph. (206) 526-6080, FAX (206) 526-6744
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