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Full documentation on GRIB functionality in Metview is here. |
Setup
Navigate into the 2_grib folder within Metview. A copy of called t_fc.grib is there.
Customising the plot to bring out information
Right-click on the Metview desktop, Create new icon and select Contouring. Rename the newly created icon to 'shade' and edit it, setting these parameters:
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Right-click on the GRIB file icon and choose Examine. This brings up the GRIB examiner tool - have a look!
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If you find this tool useful, you can invoke it directly from the command line:
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If you have time...
Compute and plot a time series from a point
Look at the supplied script plot_time_series.py as an example. It takes a GRIB file containing temperature data on multiple vertical levels for multiple time steps. The script plots a time series for each level for a given grid point.
Convert a GRIB field into text format
Create a new Grib to Geopoints icon. Edit it and drop one of the GRIB files into the Data box as shown.
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Executing this icon will convert the first GRIB field into Geopoints format. The result can be directly visualised, examined or saved to disk.
Get a Python xarray from a GRIB file
The script grib_xarray.py shows how to get an xarray from a GRIB file. This Jupyter notebook gives a more detailed example using ensemble data.