Re: [netcdf-java] Negative and unknown enum value

• To: netcdf-java@xxxxxxxxxxxxxxxx
• Subject: Re: [netcdf-java] Negative and unknown enum value
• From: netty.jawn@xxxxxx
• Date: Wed, 7 Jul 2021 11:44:50 +0200
• Sensitivity: Normal

Hi,

after searching for "Vaisala RS41/AUTOSONDE (Finland)" in your repository, I 
found this
https://github.com/Unidata/netcdf-java/blob/develop/cdm-core/src/main/resources/resources/wmo/Common_C02_20181107_en.xml
> <Common_C02_20181107_en>
> <No>120</No>
> <DateOfAssignment_en>03/11/2011</DateOfAssignment_en>
> <CodeFigureForrara>24</CodeFigureForrara>
> <CodeFigureForBUFR>124</CodeFigureForBUFR>
> <RadiosondeSoundingSystemUsed_en>Vaisala RS41/AUTOSONDE 
> (Finland)</RadiosondeSoundingSystemUsed_en>
> <Status>Operational</Status>
> </Common_C02_20181107_en>

This file is or should be used here:
https://github.com/Unidata/netcdf-java/blob/develop/cdm-core/src/main/java/ucar/nc2/internal/wmo/CommonCodeTable.java
Unfortunately only C1, C3 and C12 are active at the moment. C2 is commented 
out. This explains the "Unknown enum value".

> Gesendet: Montag, 05. Juli 2021 um 15:25 Uhr
> Von: netty.jawn@xxxxxx
> An: netcdf-java@xxxxxxxxxxxxxxxx
> Betreff: Re: [netcdf-java] Negative and unknown enum value
>
> Hi,
>
> attached is the LSSW-file.
>
> > Gesendet: Montag, 05. Juli 2021 um 15:23 Uhr
> > Von: netty.jawn@xxxxxx
> > An: netcdf-java@xxxxxxxxxxxxxxxx
> > Betreff: [netcdf-java] Negative and unknown enum value
> >
> > Hi,
> >
> > I am using netcdf-java 5.3.3 to read various bufr-files. It works very 
> > well, but 2 things are strange:
> >
> > 1. Compared to other tools, I got sometimes different values for the 
> > variable "obs.Radiosonde_type", -114 in this case. This is a invalid value, 
> > since the values of this enum are only positive.
> >
> > 2. I also got "Unknown enum value" for several enums, for example 
> > "obs.Radiosonde_type". In netcdf-java 5.4.1 these values are NULL. I am not 
> > sure, if this a problem with your library, since many (not all) enums can 
> > be transformed to string (NetcdfDatasets does this job) and only 
> > BUFRdisplay was able to transform "obs.Radiosonde_type" for me.
> >
> > Here are my test results:
> > - BUFR Viewer       https://kunden.dwd.de/bufrviewer/
> >             LSSW    0 02 011    RADIOSONDE TYPE                             
> > CODE_TABLE    10**  0              0       8 bits            142    [ 
> > 142.000 ]
> >             DWSG    0 02 011    RADIOSONDE TYPE                             
> > CODE_TABLE    10**  0              0       8 bits            124    [ 
> > 124.000 ]
> > - toolsUI 5.3.3     https://www.unidata.ucar.edu/downloads/netcdf-java/
> >             LSSW    Radiosonde_type =   "Unknown enum value=-114" CodeTable 
> > 0-2-11
> >             DWSG    Radiosonde_type =   "Unknown enum value=124" CodeTable 
> > 0-2-11
> > - toolsUI-5.4.1 Only NULL for both files
> > - BUFRdisplay       http://www.elnath.org.uk/
> >             LSSW    8,"Radiosonde type","Code table","0-02-011",142 -> 
> > Vaisala RS41 with pressure derived from GPS height/AUTOSONDE (Finland)
> >             DWSG    8,"Radiosonde type","Code table","0-02-011",124 -> 
> > Vaisala RS41/AUTOSONDE (Finland)
> > - ecCodes   https://confluence.ecmwf.int/display/ECC/Releases
> >             LSSW    "key" : "radiosondeType", "value" : 142, "units" : 
> > "CODE TABLE"
> >             DWSG    "key" : "radiosondeType", "value" : 124, "units" : 
> > "CODE TABLE"
> >
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> >
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    • From: netty . jawn
  • Re: [netcdf-java] Negative and unknown enum value
    • From: netty . jawn