Re: [netcdfgroup] NetCDF-3 file format changes

• To: Joe Sirott <Joe.Sirott@xxxxxxxx>
• Subject: Re: [netcdfgroup] NetCDF-3 file format changes
• From: Roy Mendelssohn <Roy.Mendelssohn@xxxxxxxx>
• Date: Tue, 26 Feb 2008 13:34:48 -0800

Hi Joe:

Regards,

-Roy M


On Feb 26, 2008, at 1:11 PM, Joe Sirott wrote:

Hi,

In the "classic" netCDF file format (netCDF-3), a variable without a
record dimension cannot be larger than 2GB. This limitation has been

giving me a lot of headaches lately. I know that netCDF-4 is supposed to

solve this problem, but there are a number of reasons why netCDF-4 is
not a good option for me (no Java write support, for one).

I could be missing something, but it seems like a very small change to

the netCDF-3 file format would solve this problem. The only requirement would be changing the variable size info in the netCDF header from a 32

bit to a 64 bit int (and, of course, updating the version info in the
header).

I'm guessing that I'm not the only netCDF user who has run into this
problem and who is also reluctant to move to netCDF-4. Any possibility
that Unidata could make these changes?

Cheers,

Joe S.


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Roy Mendelssohn
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NOAA/NMFS
Environmental Research Division 
Southwest Fisheries Science Center
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"Old age and treachery will overcome youth and skill."

• Follow-Ups:
  • Re: [netcdfgroup] NetCDF-3 file format changes
    • From: Mario Emmenlauer
  • Re: [netcdfgroup] NetCDF-3 file format changes
    • From: Joe Sirott

• References:
  • [netcdfgroup] NetCDF-3 file format changes
    • From: Joe Sirott