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If you are using MARS to retrieve the data, we have prepared a script that will allow you to get the data and then call the Python script automatically. You can set the date, time, step, class, grid resolution, type, area... The script will create and execute the MARS requests to get (t,q,z,lnsp). You can find more information about the script here: compute_geopotential_on_ml.ksh

Download

repoSlugcompute_eccodesbranchIdrefs/heads/masterprojectKeyUSSfilepathcompute_geopotential_on_ml/
Python program
Bitbucket file
compute_geopotential_on_ml.py
progLangpythoncollapsible
true
Wrapper script
Bitbucket filerepoSlugcompute_eccodesbranchIdrefs/heads/masterprojectKeyUSSfilepath
compute_geopotential_on_ml/
compute_geopotential_on_ml.ksh
progLangbashcollapsibletrue

Examples

This example will compute the geopotential on the 2015-10-08 time 00 operational analysis model levels (137). Below you can see the MARS user documentation request used to retrieve both files. You can set a different class/stream/type for the input data. The gribType and resolution can also be changed.

Code Block
languagebash
pythonpython3 compute_geopotential_on_ml.py tq_ml_20151008_00.grib zlnsp_ml_20151008_00.grib
pythonpython3 compute_geopotential_on_ml.py tq_ml_20151008_00.grib zlnsp_ml_20151008_00.grib -o my_grib.grib

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