#140: Clarifying the role of attributes on boundary variables.
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Reporter: davidhassell | Owner: cf-conventions@…
Type: enhancement | Status: new
Priority: medium | Milestone:
Component: cf-conventions | Version:
Resolution: | Keywords: boundary variable, attribute
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Comment (by davidhassell):
Hello Karl,
On a re-read, I agree that we can omit text as you suggest. That would
give (changing one "the" to an "a"):
If a parametric coordinate variable with a `formula_terms` attribute
(ref section 4.3.2) also has a `bounds` attribute, it is strongly
recommended that its boundary variable has a `formula_terms` attribute
too. Because the same standard name must describe both variables, the
formula must have the same terms (as specified in Appendix D), but a
different variable must be named by the two `formula_terms` attributes for
any term which depends on the vertical dimension, because the boundary
variables have one more dimension. The boundary variables for these
formula terms may also be identified by `bounds` attributes of the formula
terms variables that are auxiliary coordinate variables. In that case, a
`formula_terms` attribute of the boundary variable and the bounds of the
formula terms variables must be consistent.
Thanks, David
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Ticket URL: <https://cf-trac.llnl.gov/trac/ticket/140#comment:14>
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