polaris.mesh.attrs.add_mesh_var_attrs

polaris.mesh.attrs.add_mesh_var_attrs(ds: Dataset) → Dataset

Fill in the units, long_name and standard_name attributes of the MPAS mesh variables in a dataset, for those that do not already have them, from the table in mpas_tools.mesh.attrs.

The MPAS-Tools mesh tools write these attributes themselves, but mesh variables that Polaris adds to other datasets may not have them. Latitude and longitude variables get a standard_name only if the dataset’s on_a_sphere attribute is YES. Unlike mpas_tools.mesh.attrs.add_mesh_attrs(), no attribute is removed, so a dataset that does not carry on_a_sphere keeps the standard names its mesh variables came with.

Parameters:

ds (xarray.Dataset) – A dataset containing MPAS mesh variables (with MPAS-Ocean names)

Returns:

ds (xarray.Dataset) – A shallow copy of the dataset with the attributes added