data_vars ["ubt"]# ubt# alt_names 'u2d' 'u' cmap 'cmo.delta:piv0' name None squeeze None search_order 'sn' loc None add_loc False exclude False ["attrs"] standard_name 'barotropic_sea_water_x_velocity' long_name 'Sea water barotropic velocity along X' units 'm s-1' ["add_coords_loc"] Empty dictionary ["select"] Empty dictionary