This format is usually called CDF5 or NC_64BIT_DATA (as defined in
netcdf.h).
=Dennis Heimbigner
Unidata
On 7/30/2018 3:49 PM, Stephan Hoyer wrote:
The documentation for netCDF4-Python writes:
'NETCDF3_64BIT_DATA' is the 64-bit data version of the netCDF 3 file
format, which supports 64-bit dimension sizes plus unsigned and 64 bit
integer data types, but is only compatible with clients linked against
netCDF version 4.4.0 or later.
This seems generally useful, so I'm interested in implementing support
for this format in the netCDF3 module included in SciPy:
http://scipy.github.io/devdocs/generated/scipy.io.netcdf_file.html
However, I can't seem to find a description of this format in the
netCDF file format specification:
https://www.unidata.ucar.edu/software/netcdf/docs/file_format_specifications.html
Is a full specification for this variation available somewhere? If
not, I would encourage updating the specifications doc. One of the
strengths of netCDF (especially netCDF3) is that it is clearly
specified and has multiple independent implementations :).
Cheers,
Stephan
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