This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Gary, > Unrelated, but a quick question - why are the ncid values I get from > nf_open so large and in units of 65,536? Good question, it's an artifact of how netCDF-4 combines both the file ID and the group ID into one 32-bit integer for netCDF-4. So with 2^16 open files each of which has 2^16 groups, you would use up all the 2^32 integers with group IDs of open netCDF files. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: ESK-579185 Department: Support netCDF Priority: Normal Status: Closed