data_vars ["lwuhf"]# lwuhf# cmap 'cmo.solar' name None alt_names squeeze None search_order 'sn' loc None add_loc False exclude False ["attrs"] standard_name 'surface_upward_longwave_flux' long_name 'Longwave radiation (positive when directed upward)' units 'W m-2' ["add_coords_loc"] Empty dictionary ["select"] Empty dictionary