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When defining your text, you can use a special tag grib_info, Magics will then get the information from the grib header and replace the tag by the value read. You can use all the grib api ecCodes keys, and Magics have a special one called valid-date that will compute the valid date for the data, taking into account the base date and the step.
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To get an idea of the available keys on your grib files, you can use the function tool grib_dump of the ecCodes package.
Here is a short list of keys that we find useful, and are used in the generation of the automatic Magics title
| grib_api ecCodes key | definition |
|---|---|
| centre | originating centre |
| name | long name of the parameter |
| shortName | short name of the parameter |
| valid-date | valid date ( computed by Magics) |
| units | units |
| level | level |
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