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Re: The "Resolution global grid" requirement

From: Peter Baumann <p.baumann@jacobs-university.de>
Date: Mon, 1 Jun 2015 12:53:07 +0200
Message-ID: <556C3993.8030705@jacobs-university.de>
To: Alejandro Llaves <allaves@fi.upm.es>, Frans Knibbe <frans.knibbe@geodan.nl>
CC: SDW WG Public List <public-sdw-wg@w3.org>
Hi Alejandro, Frans,

admittedly I also cannot imagine what's behind this requirement.

Should "represent" mean "can be served by W3C interfaces"? From a logical
perspective, a [-180:+180] extent is just a special case (it seems not under
consideration by this requirement what happens beyond that).

Should it mean that a coverage must be able to span the planet? This is not an
interface question (which is the level I believe is discussed by W3C) but a
matter of scalable implementation (which is individual to the tools out there).
Desirable resolution, OTOH, is highly case dependent - 90m may or may not be
adequate.

Bottom line: don't see the contribution of this requirement.

-Peter



On 06/01/15 11:33, Alejandro Llaves wrote:
> In this case, I directly copied the input from the spreadsheet (generated at
> the F2F meeting in Barcelona), so I would appreciate some help from people in
> the group with expertise in coverage data.
>
> Cheers,
> Alejandro
>
> On 29 May 2015 at 15:06, Frans Knibbe <frans.knibbe@geodan.nl
> <mailto:frans.knibbe@geodan.nl>> wrote:
>
>     Hola Alejandro,
>
>     The Resolution global grid
>     <http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#ResolutionGlobalGrid>
>     requirement is not clear to me. It reads "It should be possible to
>     represent a medium resolution global grid, e.g. 90m raster data across the
>     globe."
>
>       * What is meant by 'represent'? 
>       * Why only a medium resolution grid? Is it already possible to represent
>         high and low resolution global grids?
>
>     Saludos,
>     Frans
>
>     -- 
>     Frans Knibbe
>     Geodan
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>
>
>
> -- 
> Alejandro Llaves
>
> Ontology Engineering Group (OEG)
>
> Artificial Intelligence Department
>
> Universidad Politécnica de Madrid
>
> Avda. Montepríncipe s/n
>
> Boadilla del Monte, 28660 Madrid, Spain
>
>
> http://www.oeg-upm.net/index.php/phd/325-allaves 
>
>
> allaves@fi.upm.es <mailto:allaves@fi.upm.es>
>

-- 
Dr. Peter Baumann
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Received on Monday, 1 June 2015 10:53:45 UTC

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