Hi JoaquÃn, Currently, it is not possible to use a dimension in a nested group as the aggregation dimension. There's no workaround, unfortunately â you just have to choose a dimension in the root group (i.e. at the top-level). I've created a JIRA ticket for this . You can follow it if you'd like to be notified of our progress. Thanks for the report! -Christian  https://bugtracking.unidata.ucar.edu/browse/TDS-700 Ticket Details =================== Ticket ID: KOI-970757 Department: Support THREDDS Priority: Normal Status: Closed
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