Hello CF
I am interested in defining cell methods where there are no coordinates.
I have a set of cases which I do not think fit the patterns in the current conventions.
I suggest that we provide further capability for defining cell method instances.
I have prepared a use case on the Trac wiki, to illustrate one of the cases that is driving this:
https://cf-pcmdi.llnl.gov/trac/wiki/aggregateExampleMH
Am I right that there is not a currently available capability for defining the result data set in this case?
I think this case and many others may be addressed by adding the following text to the conventions document, appending to:
7.3.4. Cell methods when there are no coordinates
the text:
Where the cell method refers to a nominal cell, which is not described by a data dimension, ancillary variables may be referenced by a cell method to indicate the concepts the aggregation took place over.
To define this, the syntax:
"ancillary_variable_name_1: ancillary_variable_name_2: cell_method_name"
is used.
In this case, referenced ancillary variables may be extensive, with multiple values, but they must be invariant with respect to the data variable: they may share no data dimensions.
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Received on Fri Oct 25 2013 - 03:55:27 BST
