[netcdf-java] GRIB collection processing in 4.3

Hi Antonio, and all:

I just managed to get out new versions of

http://www.unidata.ucar.edu/software/netcdf-java/formats/GribFiles.html
http://www.unidata.ucar.edu/software/netcdf-java/formats/GribTables.html

that are more or less correct concerning GRIB collection processing in 4.3

Please have a look and ignore previous versions.

John

On 2/11/2012 11:25 AM, "Antonio S. Cofiño" wrote:
I found it:
http://www.unidata.ucar.edu/software/netcdf-java/formats/GribFiles.html

Regards and thank you
--
Antonio S. Cofiño
Grupo de Meteorología de Santander
Dep. de Matemática Aplicada y
         Ciencias de la Computación
Universidad de Cantabria
Escuela de Caminos
Avenida de los Castros, 44
39005 Santander, Spain
Tel: (+34) 942 20 1731
Fax: (+34) 942 20 1703
http://www.meteo.unican.es
mailto:antonio.cofino@xxxxxxxxx

El 10/02/2012 18:39, "Antonio S. Cofiño" escribió:
Dear John,

We already have switch off our nuclear power plant ;)

I some document/email I read about you were plannig to support lists of GRIB files in the GRIB IOSP and not only just one.

Is this version supporting it? and how?

Regards

Antonio
--
Antonio S. Cofiño
Grupo de Meteorología de Santander
Dep. de Matemática Aplicada y
         Ciencias de la Computación
Universidad de Cantabria
Escuela de Caminos
Avenida de los Castros, 44
39005 Santander, Spain
Tel: (+34) 942 20 1731
Fax: (+34) 942 20 1703
http://www.meteo.unican.es
mailto:antonio.cofino@xxxxxxxxx

El 09/02/2012 21:19, John Caron escribió:
Announcing Netcdf-Java  / CDM version 4.3.8 BETA

We are feature complete on this version, but there are some major changes that need your help in testing.

In particular, version 4.3 is a complete rewrite of GRIB1 and GRIB2 file handling. Version 4.2 GRIB handling is wrong in a number of ways, especially table handling for non NCEP files, and time interval coordinate handling. If you are using CDM or TDS to read GRIB files, you want to upgrade as soon as possible. If you are running a nuclear power plant with GRIB files, please immediately do an emergency shutdown and remain offline until you can inspect.

If you are depending on the CDM/TDS to read GRIB files, you must upgrade to 4.3 AND closely examine the output of any files that you really care about. Check parameter names and everything else against the original documentation if possible, especially if there is any local parameter use. Please send us any files you suspect might be incorrectly read by the CDM library. Note that we will not backport fixes to version 4.2. Note that the variable names in 4.3 will be different from those in 4.2.

Evolving documentation for GRIB is at:http://www.unidata.ucar.edu/software/netcdf-java/formats/GribTables.html

In addition to GRIB files, version 4.3 also:

 1. handles the CF calendar attribute
    
(http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/cf-conventions.html#calendar)
 2. allows a new syntax for calendar dates
    (http://www.unidata.ucar.edu/software/netcdf-java/CDM/CalendarDateTime.html)
 3. implements the official version of the CF 1.6 Discrete Sampling
    Geometries
    
(http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/cf-conventions.html#discrete-sampling-geometries)
 4. supports client side certificates in OPeNDAP
 5. has functioning maven builds, with refactored modules
 6. has complete source at https://github.com/Unidata/thredds

If you need any of this, please test and give feedback now, while there is time to make changes. TDS version 4.3 (beta) will also be available shortly, but its much easier to test things with CDM and ToolsUI than in the TDS.

Thanks,
John

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