Quoting my earlier comment > The reason for putting missing data in the other is so that the data-reader > or program can easily tell which way round (top down or bottom up) the levels > have been arranged along the dimension.
There is another easy way to do this: we should be able to depend on the `positive` attribute, which must be present since the vertical coordinate is not pressure, in conjunction with inspecting the vertical coordinate variable, which contains a set of indicative values for the levels, monotonically increasing or decreasing. For example, if `positive=up` and the values are decreasing along the dimension, they must be arranged top-down, so the first `nsigma` levels are sigma levels. Is this sufficient, @davidhassell? If so, we don;'t need the requirement about missing data. Jonathan -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://urldefense.us/v3/__https://github.com/cf-convention/cf-conventions/issues/314*issuecomment-824370525__;Iw!!G2kpM7uM-TzIFchu!k0aBDSuWhu7eNZ9kZpVOKsxKl758XGrfP-Xa_xZJRcFSY3l33pmp9Yyibn5gzMpHjY7ZT13c_7A$ This list forwards relevant notifications from Github. It is distinct from [email protected], although if you do nothing, a subscription to the UCAR list will result in a subscription to this list. To unsubscribe from this list only, send a message to [email protected].
