On Fri, 18 Feb 2011 15:23:23 -0500, Ray Denenberg wrote
> Representation of season was recently brought up again. In this case the 
question is whether hemisphere needs to be represented, see below.
> My understanding is that the use case presented to us is satisfied, by 
using 21, 22, 23, 24 in place of month, to represent season.   While not a 
complete solution it seems to meet the concrete needs that were presented, 
even if it leaves unsolved some issues regarding sorting, when a season 
starts, etc.
>  There were other, less specific "potential" use cases presented, which 
could be satisfied by appending a qualifier to the season.  
> So
>     '2001-21' means "Spring, 2001"
> and
>      '2001-21q<xxx>' "Spring, 2001 qualified"  where <xxx> is the 
> The qualifier could be a geographic location, but unless someone takes the 
initiative to try to develop this qualifier, it's specification won't be 
included in the spec.

Should geographic location be needed I think the easiest is
- lat./Lon. (point)
- N,E,W,S in Lat./Lon. (bounding box)
- ITU "country" designator (politcal).

There are, I think, some problems using ISO 3166 alpha-2 or alpha-3 with 
seasons that I suspect are not present in the ITU model.. Adélie Land, for 
example. is claimed by France but its location is in the Antartic.. ITU sets 
the code ADL..

P.S.: I do not need any of this but present this suggestion as a solution 
should location be desired.

> This is where we ended up with this discussion, and as far as I knew 
everyone was satisfied.  Unless someone has a use case that this doesn't 
satisfy, I don't see a need to re-open discussion on this.
> Does anyone think this needs further discussion?
> --Ray
> From: [UTF-8?]SaaÅ¡ha Metsärantala
> > Sent: Monday, February 14, 2011 9:17 AM
> > Subject: Re: [DATETIME] Revised spec
> > > hemisphere seasons represented separately
> > I consider there are two different (and related) questions here. One of
> > them is whether we need to specify if (for example) "summer 2011 in the
> > southern hemispere" or "winter 2011 in the northern hemispere" refer to
> > the beginning or the end of the year 2011. The other question is
> > whether we need to sort these dates chronologically. Let's assume that
> > something occurs in automn / fall 2011 and something else occurs during
> > the spring of 2011; do we need to be able to sort these events
> > chronologically? If we need that, then we would need to specify the
> > hemispere where each of these events occurs.


Edward C. Zimmermann, NONMONOTONIC LAB
Umsatz-St-ID: DE130492967