data_vars ["mssy"]

mssy

name	None
alt_names
cmap	None
squeeze	None
search_order	'sn'
add_loc	False

["attrs"]

standard_name	'nortward_mean_square_slope' 'y_mean_square_slope'
long_name	'Northward mean square slope'
units	'm m-1'

["select"]

Empty dictionary