data_vars ["vair"]

vair

alt_names	'vair' 'va' 'vwnd'
cmap	'cmo.delta:piv0'
name	None
squeeze	None
search_order	'sn'
add_loc	False

["attrs"]

standard_name	'northward_wind' 'y_wind'
long_name	'Meridional wind speed (northerly)'
units	'm s-1'

["select"]

Empty dictionary