In order for the IDV, or other programs using the netCDF-Java library to
display data correctly, it must be able to recognize the coordinate systems of
the file. The file must use a Conventions like CF or COARDS, that the library
understands. This can be a subtle problem to diagnose, it can depend on global
attributes, etc, although it can also be as simple as adding the Conventions
You could try sending your file through here:
and see if the results are helpful.
Or look at it in the ToolsUI program (coordinate system Tab) and see what the
INFO button tells you.
For background on Conventions:
Ticket ID: WRN-878637
Department: Support netCDF Java