Hello CF community
I have been perusing the CF conventions again, particularly the section on Ancillary Data
http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/ch03s04.html
The conventions make the statement:
The nature of the relationship between variables associated via ancillary_variables must be determined by other attributes.
The example given provides data variables which reference the same dimensions in the file: thus they data arrays are the same size. However, the conventions do not seem to mandate this.
I am interested in the use of the
ancillary_variables
attribute in real world datasets.
Do people have examples they can share of ancillary datasets which:
a. reference the same file dimensions as the data variable with the ancillary_variables attribute references
b. reference a subset of the file dimensions referenced by the data variable with the ancillary_variables attribute
c. reference file dimensions which are not referenced by the data variable with the ancillary_variables attribute
I am particularly interested in examples of case c, as I feel this is markedly different from cases a and b and requires a different kind of support if it is in use.
many thanks
mark
Received on Wed Feb 13 2013 - 10:15:19 GMT
