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Please note:
According to the WMO, the use of local tables in messages intended for non-local or international exchange is strongly discouraged. First of all ask the data provider for any local tables/definitions used to encode the which they used in their GRIB messages. |
Step-by-step guide
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/usr/local/share/eccodes/definitions/grib[edition]/localConcepts/[centre:s]
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So for example the GRIB edition 2 local parameters for DWD (centre=edzw) are defined in definitions/grib2/localConcepts/edzw and GRIB edition 1 local parameters for SMHI (centre=eswi) are in definitions/grib1/localConcepts/eswi.
The following in an example The following are examples of the contents for the above files in order to handle ECMWF parameter Geopotential in GRIB edition 1:
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib1/localConcepts/ecmf/name.def |
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#Geopotential
'Geopotential' = {
table2Version = 128 ;
indicatorOfParameter = 129 ;
} |
| Code Block |
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib1/localConcepts/ecmf/paramId.def |
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#Geopotential#Geopotential
'129' = {
table2Version = 128 ;
indicatorOfParameter = 129 ;
} |
| Code Block |
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib1/localConcepts/ecmf/shortName.def |
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#Geopotential
'z' = {
table2Version = 128 ;
indicatorOfParameter = 129 ;
} |
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib1/localConcepts/ecmf/units.def |
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#Geopotential
'm**2 s**-2' = {
table2Version = 128 ;
indicatorOfParameter = 129 ;
} |
In And for GRIB edition 2, the contents of the same files for parameter Geopotential Potential temperature gradient are:
| Code Block |
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib2/localConcepts/ecmf/name.def |
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#Geopotential#Potential temperature gradient
'GeopotentialPotential temperature gradient' = {
discipline = 0192 ;
parameterCategory = 3129 ;
parameterNumber = 43 ;
} |
| Code Block |
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib2/localConcepts/ecmf/paramId.def |
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#Geopotential#Potential temperature gradient
'129129003' = {
discipline = 0192 ;
parameterCategory = 3129 ;
parameterNumber = 43 ;
} |
| Code Block |
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib2/localConcepts/ecmf/shortName.def |
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#Geopotential#Potential temperature gradient
'zptgrd' = {
discipline = 0192 ;
parameterCategory = 3129 ;
parameterNumber = 43 ;
} |
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| language | bash |
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| title | /usr/local/share/eccodes/definitions/grib2/localConcepts/ecmf/units.def |
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#Geopotential
'm**2 s**-2#Potential temperature gradient
'K' = {
discipline = 0192 ;
parameterCategory = 3129 ;
parameterNumber = 43 ;
} |
Local Definitions (Local Use section)
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Also please study the slides here: Training course presentation.
And the How-To Article GRIB: Converting edition 1 to 2 (The "Local configuration" section)
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