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Try using grib_open_file (Fortran interface) with mode "a" instead of "w". The "a" mode means: Append to a file. Writing operations append data at the end of the file. The file is created if it does not exist. |
How do I append messages to an existing GRIB file?
Step-by-step guide
Try using grib_open_file (Fortran interface) with mode "a" instead of "w".
The "a" mode means: Append to a file. Writing operations append data at the end of the file. The file is created if it does not exist.
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