If you wish to visualise a very large field (e.g. where a single field contains hundreds of millions of points), Metview may be able to plot it, but it is advised to do certain things to minimise the memory usage.
Also, it may be necessary to set an environment to increase the size of an internal memory buffer used by the MARS library that Metview uses for some of its GRIB handling. If you see a warning message such as the following:
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wmo_read_any_from_file: error -3 (Passed buffer is too small) l=140726296292856, len=3732480187 |
then you should set this buffer to the size indicated by the second number, or something a little larger, e.g.
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export MARS_READANY_BUFFER_SIZE=3732480200 |
Do this on a command-line before starting Metview from the same terminal.
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