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#74: Allow sharing of ancillary variables among multiple data variables
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  Reporter:  [email protected]  |       Owner:  
[email protected]             
      Type:  enhancement               |      Status:  new                      
                 
  Priority:  medium                    |   Milestone:                           
                 
 Component:  cf-conventions            |     Version:                           
                 
Resolution:                            |    Keywords:  "ancillary data" 
"standard name modifiers"
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Comment (by russ):

 I support this enhancement, except that I wonder if the last phrase
   in the last sentence could be misinterpreted to limit the use of
   this enhancement unnecessarily.  Specifically, I would like to see
   the last sentence

     This second form permits a single variable to provide ancillary
     data (see section 3.4) for two or more variables where each has a
     unique standard name.

   clarified and simplified to say

     This second form permits a single variable to provide ancillary
     data (see section 3.4) for variables that have a standard_name
     attribute.

   This would permit multiple variables that have the same
   standard_name attribute to share the same ancillary variable, as
   could happen, for example, for different sensors measuring the same
   physical quantity at the same points for calibration or for sensors
   with overlapping ranges of application.

   --Russ

-- 
Ticket URL: <https://cf-pcmdi.llnl.gov/trac/ticket/74#comment:14>
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