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#100: Clarifications to the preamble of section 5
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  Reporter:  jonathan        |       Owner:  [email protected]
      Type:  defect          |      Status:  new                          
  Priority:  medium          |   Milestone:                               
 Component:  cf-conventions  |     Version:                               
Resolution:                  |    Keywords:                               
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Comment (by jonathan):

 Dear Dave

 Thanks for your comment. I think the existing text implies that it is
 optional to include the 1D Cartesian coordinates when they are not lon and
 lat and 2D lon and lat have been provided. It says it is "recommended",
 which is not the same as "required". The CF checker will produce only a
 warning if they are not present, not an error. But we could say explicitly
 they are optional. Is this what you mean? I am curious about why they take
 up so much space, being only 1D? Perhaps you mean that the grid itself is
 1D? In that case, the Cartesian coordinates are I suppose auxiliary
 coordinate variables too.

 Best wishes

 Jonathan

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Ticket URL: <https://cf-pcmdi.llnl.gov/trac/ticket/100#comment:2>
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