[CF-metadata] [Go-essp-tech] FW: NetCDF-CF compliance checker available for download
Cinquini, Luca (3880)
Luca.Cinquini at jpl.nasa.gov
Fri Nov 19 07:11:51 MST 2010
Thanks Ros, I think this package will be very widely used...
On Nov 19, 2010, at 4:48 AM, Rosalyn Hatcher wrote:
As Stephen says the checker currently only validates versions 1.0 to 1.4 of the CF convention.
I was unaware that CF-1.5 had been officially released. I now see that the CF-1.5 document was added a couple of weeks ago. Guess I must have missed that announcement somehow. :-(
Once I have a list of all the differences, I will implement them in the checker as soon as I can and announce the update on the cf-metadata mailing list.
On 19/11/10 09:49, stephen.pascoe at stfc.ac.uk<mailto:stephen.pascoe at stfc.ac.uk> wrote:
It's good to receive some prompt feedback on the CF-checker download. I have limited knowledge of how the tool really works so I'm going to forward general questions to cf-metadata and Ros Hatcher. To answer Luca's question below -- The checker expects the version option to be between "1.0" and "1.4". I'm not sure what features would need adding to support 1.5.
Also something that came up is that the "-u" option expects to be given the location of the udunits2.xml file installed as part of udunits-2 and not udunits.dat. It's usual location is <UDUNITS-HOME>/share/udunits/udunits2.xml.
From: Cinquini, Luca (3880) [mailto:Luca.Cinquini at jpl.nasa.gov]
Sent: 19 November 2010 00:33
To: Pascoe, Stephen (STFC,RAL,SSTD)
Cc: Cinquini, Luca (3880)
Subject: Re: [Go-essp-tech] NetCDF-CF compliance checker available for download
our SA installed the package, and I gave it a try, and it worked really nicely... got a couple of warning on a few files that seemed like the correct thing to have.
One question I have is that the package seems to think the latest version of CF is 1.4, while it is indeed 1.5 - is that correct ?
-bash-3.2$ cfchecks -v 1.5 pcmdi.ipcc4.miroc3_2_hires.amip.run1.monthly.hus_A1_1979_2002.nc
WARNING: CF-1.5 is not a valid CF version.
Performing check against newest version CF-1.4
CHECKING NetCDF FILE: pcmdi.ipcc4.miroc3_2_hires.amip.run1.monthly.hus_A1_1979_2002.nc
Anyway this is great - as soon as we have a wiki up for this NASA-PCMDI effort, I will advertise the package to the other data providers...
On Nov 17, 2010, at 7:24 AM, <stephen.pascoe at stfc.ac.uk<mailto:stephen.pascoe at stfc.ac.uk>> <stephen.pascoe at stfc.ac.uk<mailto:stephen.pascoe at stfc.ac.uk>> wrote:
With the permission of Rosalyn Hatcher I have packaged the NetCDF-CF compliance checker as a downloadable tarball. This is available on the Python Package Index. This tool provides the best available verification of NetCDF-CF compliance.
The cf-checker has 2 dependencies: cdms and udunits-2. If you are managing an ESGF datanode you already have CDAT in /usr/local/cdat. Alternatively you can use cdat_lite. Udunits2 will need installing separately and the udunits dynamic library must be in your ld library path (e.g. set LD_LIBRARY_PATH).
Once you have these dependencies either download the tarball, unpack and run "python setup.py install" or use the easy_install tool to download and install automatically with "easy_install cfchecker" (for instance /usr/local/cdat/bin/easy_install cfchecker)
This makes the script "cfchecks" available. The help page follows. Please feed back any installation issues to me and usage issues to Ros and/or myself.
$ cfchecks --help
cfchecker [-a|--area_types area_types.xml] [-s|--cf_standard_names standard_names.xml] [-u|--udunits udunits.dat] [-v|--version CFVersion] file1 [file2...]
The cfchecker checks NetCDF files for compliance to the CF standard.
-a or --area_types:
the location of the CF area types table (xml)
-s or --cf_standard_names:
the location of the CF standard name table (xml)
-u or --udunits:
the location of the udunits.dat file
-h or --help: Prints this help text.
-v or --version: CF version to check against.
Stephen Pascoe +44 (0)1235 445980
Centre of Environmental Data Archival
Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK
Scanned by iCritical.
Scanned by iCritical.
NCAS Computational Modelling Services
Dept. of Meteorology, University of Reading,
Earley Gate, Reading. RG6 6BB
Email: r.s.hatcher at reading.ac.uk<mailto:r.s.hatcher at reading.ac.uk> Tel: +44 (0) 118 378 6016
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