data_vars ["fp"]# fp# cmap 'cmo.tempo' name None alt_names squeeze None search_order 'sn' loc None add_loc False exclude False ["attrs"] standard_name 'peak_frequency_of_wind_and_swell_waves' long_name 'Peak frequency' 'Frequency of wind and swell waves at spectral peak' units 's-1' ["add_coords_loc"] Empty dictionary ["select"] Empty dictionary