For detailed review of steps needed to create new grids in ACME see CAM-SE Variable Resolution Grid Generation, CIME documentation, and CESM 1.2 manual and (most current) Running E3SM on New Atmosphere Grids .
This is a summary of steps required to create mapping/weighting/domain files for the model if one starts with an atmosphere, HOMME, mesh. We follow instructions in ACME and HOMME files with some modifications and clarifications.
These notes contain instructions for a particular situation, modifying input files for compset FC5AV1F with resolution conusx4v1_conusx4v1 . Since new algorithm for weights is being introduced in Homme (for locally refined meshes, new weights are now consistent with an element area), mapping files and domain files for refined meshes need to be replaced. Turns out that only one homme locally refined mesh is used in config_grids.xml, mesh conusx4v1.g . The process of creating new corresponding mapping files and domain files is described below.
There are a few types of grids/maps/files that are discussed below:
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