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How to write Institut in grib file

Added by Isabella Ascione over 5 years ago

Hi

When I display attributes of a grib file I have, I get

cdo sinfon file.grib
File format : GRIB
-1 : Institut Source T Steptype Levels Num Points Num Dtype : Parameter name
1 : unknown unknown v instant 24 1 111375 1 P16 : var38

I would like to change the Institut from unknown to a different value. How can I achieve this using cdo?

what is the meaning of Dtype P16?

Thank you for your help


Replies (2)

RE: How to write Institut in grib file - Added by Ralf Mueller over 5 years ago

Hi Isabella!

I am not sure, how much you know about GRIB file format.

  1. P16 is an indicator for the compression factor of the grib records
  2. meta-data like institute, variable names and so on are saved as integers or triplets of them following the GRIB standard (see here for a little docu)

For handling grib1 and grib2 files, the eccodes library (including some command line tools) is very useful.

hth
ralf

RE: How to write Institut in grib file - Added by Isabella Ascione over 5 years ago

Hi,

I do not know much about the GRIB format. Can cdo be used to edit the Institut from unknown to something else?
thank you

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