Hi John and all:
For sure its a good idea to preserve the CF Conventions attribute if it
exists. I will add that to our issue tracker.
Remember that THREDDS is a general purpose subsetter, not specific to
CF. So we deal with lots of source datasets (eg GRIB) that arent CF. The
point is that we convert whatever we have to CF.
Up to this point, as CF versions have evolved, there hasnt been any
difference in the way that we write out these files. So im interested if
Ive missed something and there is some actual change in the file
structure that we should be tracking from Sean's POV. Other than the
actual version number.
John
On 8/28/2013 11:11 AM, John Graybeal wrote:
> It isn't just about feature presentation, right? On the assumption that the latest version is always most current (so everyone will use the latest version if they can), I use the version as a proxy for how current/up-to-date/sophisticated the data provider is.
>
> It also gives me a clue about which standard name table version they might use, though that version info is often available elsewhere.
>
> If true, this may help explain why so few data providers seemed to be using 1.6, anyway....
>
> John
>
> On Aug 28, 2013, at 08:56, John Caron <caron at unidata.ucar.edu> wrote:
>
>> Hi Sean:
>>
>> What feature of CF are you using that you need to preserve the version?
>>
>> John
>>
>> "If you torture data long enough, it will confess."
>> -- Economist Ronald Coase
>>
>>
>>
>> On 8/28/2013 3:28 AM, Gaffney, Sean P. wrote:
>>> Hi,
>>> Here at the British Oceanographic Data Centre we use THREDDS to deliver
>>> and subset our numerical model data that we hold in CF netcdf format.
>>> I?ve just been made aware that during the delivery and subsetting
>>> process, THREDDS seems to be converting the CF files we hold from
>>> whatever CF convention they have been supplied in, to CF 1.0.
>>> Is this something that the rest of the community are aware of, and if
>>> so, do people consider it to be of major importance that the files
>>> outputted by thredds are in a different convention to the source files
>>> thredds interrogates?
>>> Cheers
>>> Sean Gaffney
>>> BODC
>>>
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>
> ------------------------------------
> John Graybeal
> Senior Data Manager, Metadata and Semantics
>
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>
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Received on Wed Aug 28 2013 - 17:18:30 BST
