#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 taylor13):
Dear David and Jonathan,
I like Jonathan's idea to combine both examples and annotate it.
I don't think it important to *require* the units attributes to be
included with the parametric bounds variables, so let's not worry about my
"final comment". For the record, I think the most common use case where
one might care only about the eta bounds and not eta is in performing a
mass-weighted vertical integral of a quantity. One would need the values
of the quantity being integrated and the eta-bounds. The eta-bounds would
be transformed to pressure using the the formula terms attached to eta-
bounds. The pressure "widths" of each cell could then be calculated and
multiplied by the variable being integrated; then summed. There would be
no need to know anything about eta itself. Of course, in this procedure
there would be no need to know anything about the parametric units either,
so it doesn't demand that we make it easy to extract the units associated
with A_bnds and B_bnds.
I think Jonathan's rewrite of the sentence in the 2nd paragraph is an
improvement.
I think we must be about "there".
best wishes,
Karl
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Ticket URL: <https://cf-trac.llnl.gov/trac/ticket/140#comment:25>
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