Hi John, Sorry, we don't know of any convention that is appropriate for your purpose. If you do develop a new comventtion that you think would be of more general use, please let us know so we can recommend it for future use in this area. Thanks, --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: KES-115113 Department: Support netCDF Priority: Normal Status: Closed