data_vars ["sig"]

sig

alt_names	's_level' 'sigma' 's' 'sigma_level'
name	None
cmap	None
squeeze	None
search_order	'sn'
loc	None
add_loc	False
exclude	False

["attrs"]

standard_name	'ocean_sigma_coordinate' 'ocean_s_coordinate' 'atmosphere_sigma_coordinate' 'atmosphere_s_coordinate' 'ocean_s_coordinate_g1' 'ocean_s_coordinate_g2'
long_name	'Sigma level'
units

["add_coords_loc"]

Empty dictionary

["select"]

Empty dictionary