[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[netCDF #LZA-635510]: Additional netCDF example files

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [netCDF #LZA-635510]: Additional netCDF example files
  • Date: Thu, 30 Apr 2015 13:22:47 -0600
Martin,

I also added a netCDF-4 chunked and compressed version of your ECHAM 
output in the table of netCDF-4 files, to show how netCDF compression
could produce a file from which the data could be accessed without
uncompressing the whole file.  The netCDF-4 compression is significantly
better than gzip or bzip2 on the whole file, but 7za still beats (114 MB vs 
120 MB).

--Russ

> -----Original Message-----
> From: Unidata netCDF Support [mailto:address@hidden]
> Sent: Tuesday, April 28, 2015 6:43 PM
> To: Schultz, Martin
> Cc: address@hidden
> Subject: [netCDF #LZA-635510]: Additional netCDF example files
> 
> Hi Martin,
> 
> Thanks again for your example files.  I added them to our table of examples,
> along with the descriptions your provided:
> 
> http://www.unidata.ucar.edu/netcdf/examples/files.html
> 
> I took the liberty of shortening the file names to fit more easily in the 
> table.
> 
> Please let me know if you spot any modifications needed to the links or
> descriptions.
> 
> --Russ
> 
> > I just came across your wonderful collection of netcdf examples again
> > () and thought that I could contribute three more data files for this
> > with a few "new" features:
> >
> > test_hgroups.nc -- a couple of aircraft flight data sets stored as
> > individual groups. For the sake of experimenting,
> >
> > the first group has its dimension (recNum) and the time variable
> > defined at root level. All other groups have all dimensions stored
> > inside the group.
> >
> > test_echam_spectral.nc -- example model output from the ECHAM general
> > circulation model. Almost CF, but not quite.
> >
> > Has a spectral coordinate for variables such as temperature (st)
> > and vorticity (svo).
> >
> > OMI-Aura_L2-OMO3PR_2007m1120t1304-o17814_v003-2009m0910t070427.nc4 --
> > example of a satellite dat afile with averaging
> >
> > kernels. Has variables with two dimensions of the same name in it
> > (short O3.COLUMN.PARTIAL_AVK(DATETIME, PRESSURE, PRESSURE)).
> >
> > The files are available at
> >
> > https://gigamove.rz.rwth-aachen.de/d/id/WGvCQSj3U2xFu6
> >
> > and can be downloaded from there until May 6 - the README file included
> > in the 7z file has the same information as given above.
> >
> > Hopefully this is useful,
> >
> > Martin Schultz
> >
> > .........................................................................................................................................................
> > PD Dr. Martin G. Schultz          IEK-8, Forschungszentrum, Jülich GmbH
> > Wilhelm-Johnen-Str., 52425 Jülich, Germany
> > address@hidden<mailto:address@hidden>
> > ph: +49 2461 61 2831
> > ...................................................
> >
> >
> >
> > ------------------------------------------------------------------------------------------------
> > ------------------------------------------------------------------------------------------------
> > Forschungszentrum Juelich GmbH
> > 52425 Juelich
> > Sitz der Gesellschaft: Juelich
> > Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
> > Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher
> > Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender),
> > Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
> > Prof. Dr. Sebastian M. Schmidt
> > ------------------------------------------------------------------------------------------------
> > ------------------------------------------------------------------------------------------------
> >
> >
> >
> Russ Rew                                         UCAR Unidata Program
> address@hidden                      http://www.unidata.ucar.edu
> 
> 
> 
> Ticket Details
> ===================
> Ticket ID: LZA-635510
> Department: Support netCDF
> Priority: Normal
> Status: Closed
> 
> 

Russ Rew                                         UCAR Unidata Program
address@hidden                      http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: LZA-635510
Department: Support netCDF
Priority: Normal
Status: Closed