Eric Scace asked:

>    At the risk of re-triggering yet another "what is a character"
> discussion... Have meteorological symbols been considered for
> incorporation in Unicode?  (A search of the archives did not turn 
> up any discussion.)

Not per se. And yes, this will trigger another "what is a character"
discussion, I fear.

> 
>    The set of symbols in use has been standardized for many decades
>  by the World Meteorological Organization.  

Can you point us to a specific document? http://www.wmo.ch lists
hundreds of publications, but nothing that I could see or search
for easily that points to a standard for meteorological symbols.

Also, you need to take into account that whatever the WMO may
state about this in a standard document may or may not reflect
computer practice reflected in fonts, other character encodings,
and actual practice around the world.

> The total set is
> around 150 characters. 
             ^^^^^^^^^^
             symbols
             
Unless the WMO has promulgated a *character* encoding standard
that we don't know about, the fact that there is a standard
list of some 150 images for symbols begs the question whether
these are characters or not. ISO has *many* standards for symbols
and icons of various sorts. They clearly do not all constitute
characters.             

> However, some are already available in Unicode in various locations 
> (arrows, simple thunderstorm symbol,
> lightning, and other glyphs which can be re-applied in their 
> meteorological context such as various kinds of fog)... and some others
> can be decomposed in a manner similar to basic letters and 
> diacritical marks.

Point the UTC to the set of 150 things standardized by the WMO,
and let the debate begin.

--Ken

> 
>    Thanks for your kind assistance.
> 
> -- Eric Scace


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