Re: [thredds] Compression by Gathering working with Thredds?

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: Re: [thredds] Compression by Gathering working with Thredds?
• From: Ethan Davis <edavis@xxxxxxxxxxxxxxxx>
• Date: Wed, 07 Dec 2011 10:00:35 -0700

Hi Matthias,

No, the underlying netCDF-Java library does not handle CF "compression
by gathering". From this fairly recent (June 2011)  discussion on the CF
mailing list

http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2011/022125.html

it doesn't sound like it is used very widely. As suggested there, you
might consider netCDF-4 chunking/compression instead. Which is handled
by the netCDF-Java library and so by the TDS and ncWMS.

Ethan

On 12/7/2011 1:07 AM, Matthias Müller wrote:
> Dear Thredds experts,
> 
> in order to save us some disk space and maybe increase the performance
> of a Thredds/ncWMS server we are planning to apply "Compression by
> Gathering" (CF Conventions 1.6, section 8.2) to our landuse and
> land-bound climate datasets. Before adapting our data massaging routines
> I would like to make sure that the results will be compatible with the
> Thredds server.
> 
> Can you please comfirm that Thredds supports netCDF files that utilize
> "Compression by Gathering"?
> 
> Thank you,
> Matthias

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• References:
  • [thredds] Compression by Gathering working with Thredds?
    • From: Matthias Müller