Thanks for the reminder and sorry for the delay. The reason this is occurring is that the opendap protocol does not support the Long type (8 byte integer). =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: WRC-922054 Department: Support netCDF Java Priority: Critical Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.