[CF-metadata] Usage of the 'Conventions' attribute

2013-01-23 Thread Lowry, Roy K.
Dear All,

Currently, the 'Conventions' attribute is restricted to be a global attribute.  
There is currently a requirement to label multiple QC flag variables following 
different conventions with their source convention and having the 'Conventions' 
attribute as a variable attribute for these non-co-ordinate variables would 
seem a convenient and consistent mechanism.  Is there any support for or 
objections to this suggestion?

Cheers, Roy.

Please note that I now work part-time from Tuesday to Thursday.  E-mail 
response on other days is possible but not guaranteed!




  
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Re: [CF-metadata] Usage of the 'Conventions' attribute

2013-01-23 Thread Derrick Snowden
I'm currently working with a group looking at profiling glider date a files 
from multiple countries. We've identified a similar need to differentiate qc 
tests on a per variable basis. I support the idea and the problem and I suppose 
one solution is the conventions attribute. 

Regards, 
Derrick

Lowry, Roy K. r...@bodc.ac.uk wrote:

Dear All,

Currently, the 'Conventions' attribute is restricted to be a global
attribute.  There is currently a requirement to label multiple QC flag
variables following different conventions with their source convention
and having the 'Conventions' attribute as a variable attribute for
these non-co-ordinate variables would seem a convenient and consistent
mechanism.  Is there any support for or objections to this suggestion?

Cheers, Roy.

Please note that I now work part-time from Tuesday to Thursday.  E-mail
response on other days is possible but not guaranteed!




  
This message (and any attachments) is for the recipient only. NERC is
subject to the Freedom of Information Act 2000 and the contents of this
email and any reply you make may be disclosed by NERC unless it is
exempt from release under the Act. Any material supplied to NERC may be
stored in an electronic records management system.




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Re: [CF-metadata] Usage of the 'Conventions' attribute

2013-01-23 Thread Nan Galbraith

Hi Roy -

As far as I know, there is nothing to prevent you from having
Conventions attributes other than the global one.  Only the
global attribute is part of CF, but you could certainly implement
similar syntax in Conventions attributes for multiple variables.

Or are you looking for more of a formal acceptance of a variable-
level Conventions attribute?

You're not proposing to replace the flag_values and flag_meanings
attributes with this reference to an external QC flag convention, by
any chance? That would be a difficult step.

Cheers - Nan

On 1/23/13 3:20 AM, Lowry, Roy K. wrote:

Dear All,
Currently, the 'Conventions' attribute is restricted to be a global 
attribute.  There is currently a requirement to label multiple QC flag 
variables following different conventions with their source convention 
and having the 'Conventions' attribute as a variable attribute for 
these non-co-ordinate variables would seem a convenient and consistent 
mechanism.  Is there any support for or objections to this suggestion?

Cheers, Roy.

--
***
* Nan Galbraith(508) 289-2444 *
* Upper Ocean Processes GroupMail Stop 29 *
* Woods Hole Oceanographic Institution*
* Woods Hole, MA 02543*
***



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Re: [CF-metadata] Usage of the 'Conventions' attribute

2013-01-23 Thread Lowry, Roy K.
Hi Nan,

I am definitely NOT trying to replace the flag_values and flag_meanings 
attributes - the Conventions attribute would be in addition.  It's more formal 
acceptance of what is becoming a de facto practice that I'm after.

Cheers, Roy.

Please note that I now work part-time from Tuesday to Thursday.  E-mail 
response on other days is possible but not guaranteed!


-Original Message-
From: CF-metadata [mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of Nan 
Galbraith
Sent: 23 January 2013 15:16
To: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] Usage of the 'Conventions' attribute

Hi Roy -

As far as I know, there is nothing to prevent you from having Conventions 
attributes other than the global one.  Only the global attribute is part of CF, 
but you could certainly implement similar syntax in Conventions attributes for 
multiple variables.

Or are you looking for more of a formal acceptance of a variable- level 
Conventions attribute?

You're not proposing to replace the flag_values and flag_meanings attributes 
with this reference to an external QC flag convention, by any chance? That 
would be a difficult step.

Cheers - Nan

On 1/23/13 3:20 AM, Lowry, Roy K. wrote:
 Dear All,
 Currently, the 'Conventions' attribute is restricted to be a global
 attribute.  There is currently a requirement to label multiple QC flag
 variables following different conventions with their source convention
 and having the 'Conventions' attribute as a variable attribute for
 these non-co-ordinate variables would seem a convenient and consistent
 mechanism.  Is there any support for or objections to this suggestion?
 Cheers, Roy.
--
***
* Nan Galbraith(508) 289-2444 *
* Upper Ocean Processes GroupMail Stop 29 *
* Woods Hole Oceanographic Institution*
* Woods Hole, MA 02543*
***



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to the Freedom of Information Act 2000 and the contents of this email and any 
reply you make may be disclosed by NERC unless it is exempt from release under 
the Act. Any material supplied to NERC may be stored in an electronic records 
management system.
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