Dear Jim > I can see where your assumption about the where clause comes from, > but I don't find any such restriction declared in the conventions.
We didn't have anything in mind other than portions of area. Sect 7.3.3 begins By default, the statistical method indicated by cell_methods is assumed to have been evaluated over the entire horizontal area of the cell. Sometimes, however, it is useful to limit consideration to only a portion of a cell (e.g. a mean over the sea-ice area). which is explicitly about horizontal area. I agree that the concept could be extended to other dimensions or combinations of dimensions, but it has not been so far. Best wishes Jonathan _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
