[Go-essp-tech] Grouping files of differing versions

[stephen.pascoe at stfc.ac.uk]

Nebojsa,

Since CMOR is not version-aware files have no indication of their version number.  Version should be explicit in the THREDDS dataset at ID attribute and the property[@name="version"] attribute.

> assumption that they all belong to the same product
Can you give us an example as I'm not sure what you mean.  Files shouldn't move product between versions unless they were miss-classified initially.

I would use the property[@name="version"] attribute to distinguish between versions as the dataset at ID could be changed  in the future.  I think of it as an internal THREDDS identifier.

Cheers,
Stephen.

---
Stephen Pascoe  +44 (0)1235 445980
Centre of Environmental Data Archival
STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, UK

-----Original Message-----
From: go-essp-tech-bounces at ucar.edu [mailto:go-essp-tech-bounces at ucar.edu] On Behalf Of Nebojsa Balic
Sent: 22 July 2011 09:58
To: go-essp-tech at ucar.edu
Subject: [Go-essp-tech] Grouping files of differing versions

  Dear All,
I am trying to group files differing only in the version number in order 
to determine the files of the latest version. I have come to conclusion 
that files differing only in the version have all the same name but 
different ID under the assumption that they all belong to the same 
product. Is this a necessary and sufficient condition for grouping files 
with different versions?
Thanks
Nebojsa Balic
MPI-M
Hamburg
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