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#104: Clarify the interpretation of scalar coordinate variables
-----------------------------+----------------------------------------------
  Reporter:  jonathan        |       Owner:  [email protected]
      Type:  enhancement     |      Status:  new                          
  Priority:  medium          |   Milestone:                               
 Component:  cf-conventions  |     Version:                               
Resolution:                  |    Keywords:                               
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Comment (by davidhassell):

 Replying to [comment:40 caron]:

 Hello John,

 Thanks for this. It's definitely clarified things for me. I still bravely
 maintain that DSG is not affected ''logically'' by #104. I sympathize with
 your last example ("I don't like it because it makes it looks like a
 profile"), but surely the resemblance is passing, since the `featureType`
 attribute will be `"point"`, rather than `"profile"`, and extra dimensions
 are not prohibited. Is that right?

 > suppose that you are sampling at the same point. Its intuitive to
 indicate this using scalar coordinates:
 >
 {{{
 dimensions:
   sample = 39238923;
 variables:
   float data(sample);
     data:coordinates = "lat lon time";
   float lat;
   float lon;
   float time(sample);
 }}}
 >
 > so here you are really doing a shorthand for lat(sample), lon(sample)
 indicating that these are constants. which is really useful to know.

 I like this example, but I don't understand how the scalar `lat` is
 shorthand for `lat(sample)` when `sample` = 39238923. Am I missing
 something?

 All the best,

 David

-- 
Ticket URL: <https://cf-pcmdi.llnl.gov/trac/ticket/104#comment:41>
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