Thanks all,
Interesting to see the new MMI ontology work.
I take from this discussion then that there is not currently a CF
'blessed' method to reference a term?
E.g. for air_temperature I can choose from any of these:
http://mmisw.org/ont/cf/parameter/air_temperature
http://vocab.ndg.nerc.ac.uk/term/P071/16/CFSN0023
http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/16/cf-standard-name-table.html#air_temperature
plus:
http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/16/cf-standard-name-table.xml
Cheers,
Dom
On 14/12/10 08:18, Lowry, Roy K. wrote:
> Dear All,
>
> Working to find a way of harmonising the two sources of web-served
> Standard Names is on by ?To-Do? list for next year (part of an issue
> list fed into the NETMAR project by John G.)
>
> Cheers, Roy.
>
> *From:* cf-metadata-bounces at cgd.ucar.edu
> [mailto:cf-metadata-bounces at cgd.ucar.edu] *On Behalf Of *John Graybeal
> *Sent:* 13 December 2010 22:28
> *To:* Benno Blumenthal
> *Cc:* cf-metadata at cgd.ucar.edu
> *Subject:* Re: [CF-metadata] Web reference to a standard name?
>
> A minor clarification as to how MMI is doing things:
>
> Benno, all,
>
> On Dec 13, 2010, at 07:25, Benno Blumenthal wrote:
>
>
>
> We have tried to get standard URIs for CF concepts, but the effort
> bogged down.
>
>
> As for standard names, MMI established a set of URIs at
>
> http://marinemetadata.org/cf
>
> but has not been keeping up to date.
>
> Thanks for the mention. This is our older URL, sorry; we are now
> maintaining CF standard names in our ontology repository, using
> resolvable URLs. [1]
>
> There was a period when MMI was not keeping up to date with CF changes,
> but in the recent past we have been continuously updating the SKOS
> ontology for the parameter names at the site Carlos mentioned [1] (We
> will forward the misleading /cf URL above, or fix it to make clear in
> some other way the current status; thanks for calling that out.)
>
> As with Roy's handling, we provide URLs both for the current version at
> the reference URL, and for individual releases of the vocabulary.
>
> John
>
> [1] http://mmisw.org/ont/cf/parameter
>
>
>
> I have written a XSL transform at
>
> http://iridl.ldeo.columbia.edu/ontologies/xslt/.cfsn2rdf.xsl
>
> that can be applied to
>
> http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/16/cf-standard-name-table.xml
>
> to generate an up-to-date version, e.g.
>
> xsltproc http://iridl.ldeo.columbia.edu/ontologies/xslt/.cfsn2rdf.xsl
> http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/16/cf-standard-name-table.xml
>
> On the other hand, Roy has created opaque URIs for standard names at
>
> http://vocab.ndg.nerc.ac.uk/list/P07/9 contains all the Standard Names
> that have ever been published, including names that have been aliased
>
> http://vocab.ndg.nerc.ac.uk/list/P071/9 contains the Standard Names that
> are currently valid (i.e. those that have not been deprecated through
> aliasing)
>
> http://vocab.ndg.nerc.ac.uk/list/P072/9 contains the Standard Names that
> have been deprecated through aliasing
>
> The mapping between deprecates and their replacement aliases my be
> obtained through the following API call
>
> http://vocab.ndg.nerc.ac.uk/axis2/services/vocab/getMap?subjectList=http://vocab.ndg.nerc.ac.uk/list/P072/current&predicate=255&objectList=http://vocab.ndg.nerc.ac.uk/list/P071/current&inference=false
> <http://vocab.ndg.nerc.ac.uk/axis2/services/vocab/getMap?subjectList=http://vocab.ndg.nerc.ac.uk/list/P072/current&predicate=255&objectList=http://vocab.ndg.nerc.ac.uk/list/P071/current&inference=false>
>
>
>
>
> he changes them with each version, so it is both more definitive and
> harder to use. It is also pure SKOS, so one needs to add structure to
> actually connect it with a CF-described dataset. I plan to write out a
> map between the two, so that I can use his relationships between CF
> standard_names, but I do not have it yet.
>
> Additional information and ontologies describing the CF structure both
> as attributes and conceptually are available at
> http://iridl.ldeo.columbia.edu/ontologies/, including the connections
> between the standard_name ontologies and the CF structure.
>
>
>
> Benno
>
>
>
> On Mon, Dec 13, 2010 at 9:22 AM, Dominic Lowe <dominic.lowe at stfc.ac.uk
> <mailto:dominic.lowe at stfc.ac.uk>> wrote:
> > Hello all,
> >
> > What's the current CF recommended scheme for referencing a standard
> name on
> > the web? (either by URL or URN).
> >
> > I know about the vocab server and the xml/html online versions and could
> > choose to use URLs to point to items in any of these but is there a
> > definitive pattern that should be used? (or at least a best practice that
> > should be encouraged?).
> >
> > Much appreciated,
> >
> > Dominic
> > --
> > Scanned by iCritical.
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> > CF-metadata at cgd.ucar.edu <mailto:CF-metadata at cgd.ucar.edu>
> > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
> >
>
>
>
> --
> Dr. M. Benno Blumenthal benno at iri.columbia.edu
> <mailto:benno at iri.columbia.edu>
> International Research Institute for climate and society
> The Earth Institute at Columbia University
> Lamont Campus, Palisades NY 10964-8000 (845) 680-4450
>
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>
> John Graybeal <mailto:jgraybeal at ucsd.edu>
>
> phone: 858-534-2162
>
> System Development Manager
>
> Ocean Observatories Initiative Cyberinfrastructure Project:
> http://ci.oceanobservatories.org
>
> Marine Metadata Interoperability Project: http://marinemetadata.org
>
>
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Received on Tue Dec 14 2010 - 04:05:35 GMT
