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
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
> --
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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>
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System Development Manager
Ocean Observatories Initiative Cyberinfrastructure Project: http://ci.oceanobservatories.org
Marine Metadata Interoperability Project: http://marinemetadata.org
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