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How can I filter GRIB data?

Step-by-step guide

You need to use the GRIB Filter icon, which is implemented as the read() function in script. The following Python example shows how to read a GRIB file and extract temperature fields on pressure levels out of it:

import metview as mv
f = mv.read(source='my_grib_file', param='t', levtype='pl')

Alternatively the GRIB file can be read into a fieldset object and you can apply the filter on it:

import metview as mv
g = mv.read('my_grib_file')
f = mv.read(data=g, param='t', levtype='pl')

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