[Go-essp-tech] replicas and search

[Bryan Lawrence]

On Wednesday 02 December 2009 16:47:02 Don Middleton wrote:
> A follow-on to the call, as I had to leave a bit early. We were  
> discussing being able to use the tracking id for various files. If the  
> tracking id is not in the federated metadata, how does one know which  
> gateway to consult for information?

I was wondering the same thing ... 

I think I've asked this question before, but I can't remember the answer :-)

Is the difference between what is in the Thredds catalog and what is in the rdf representation of it documented anywhere?  (Or, where is the schema for the rdf?)

Cheers
Bryan

> 
> don
> 
> 
> On Dec 1, 2009, at 2:30 PM, Luca Cinquini wrote:
> 
> > Hi,
> > 	as I mentioned today at the telecon, I think the RDF query services  
> > should be able to handle the concept of dataset replicas quite  
> > nicely. The main concepts are that the RDF records generated from  
> > replicas must have different RDF identifiers, so they can be  
> > exchanged independently among gateways, and must reference their  
> > original RDF record.
> >
> > If you are interested, I've documented some of the details here:
> >
> > https://wiki.ucar.edu/display/esgcet/Metadata+Search+and+Replicas
> >
> > I'm also including a snapshot of an ESG Gateway that shows multiple  
> > replicas returned as part of a DRS search (note that how the  
> > replicas are presented in the result page can be easily changed -  
> > the picture is just to show that the query can handle replicas).
> >
> > thanks, Luca
> >
> > <DRS with Replicas.tiff>
> > _______________________________________________
> > GO-ESSP-TECH mailing list
> > GO-ESSP-TECH at ucar.edu
> > http://mailman.ucar.edu/mailman/listinfo/go-essp-tech
> 
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-- 
Bryan Lawrence
Director of Environmental Archival and Associated Research
(NCAS/British Atmospheric Data Centre and NCEO/NERC NEODC)
STFC, Rutherford Appleton Laboratory
Phone +44 1235 445012; Fax ... 5848; 
Web: home.badc.rl.ac.uk/lawrence