[netcdf-java] HDF5, NetCDF-4, and dimensions

I recently tried to read an OCCAM HDF5 file with the NetCDF Java
library. While I was able to read it, it didn't look like a regular
NetCDF file in that there were no global dimensions but each variable
had its own distinct set of nameless dimensions.

Subsequent reading suggests this is a general difference between
NetCDF-3 and HDF5, the lack of global dimensions.

This brings up the following questions:
Should the NetCDF Java library be trying to synthesize valid
dimensions using attribute information?

If the NetCDF-4 library is based on HDF-5 (assuming one enables that
feature), does this imply that entire concept of named dimensions is
being discarded from NetCDF? What would be the effect on conventions
such as CF and COARDS?

Eric.

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Eric Davies, M.Sc.
Barrodale Computing Services Ltd.
Tel: (250) 472-4372 Fax: (250) 472-4373
Web: http://www.barrodale.com
Email: eric@xxxxxxxxxxxxx
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