------------------------------- The Global Carbon Project - CH4 ------------------------------- The Global Carbon Project - CH4 is a comprehensive assessment of the global CH4 budget. It includes inter-comparisons of bottom-up and top-down quantifications of CH4 surface fluxes. Further details can be found about GCP-CH4 on the `Global Carbon Project webiste `__ and in the latest update of the `GCP-CH4 publication `__. pyCIF is used in GCP-CH4 to produce atmospheric inversions. Here we present a step-by-step tutorial to compute inversions with pyCIF-LMDZ. All steps of the tutorial can be adapted to one's model by changing the ``model`` and ``domain`` paragraph in the Yaml configuration files. .. toctree:: :maxdepth: 0 dl_preproc_edgar grouping_emissions inputs