{"ob_id":54099,"names":[],"terms":[{"ob_id":78,"label":"units","value":"1","vocabulary":""},{"ob_id":5899,"label":"long_name","value":"NH4 Mass Mixing Ratio","vocabulary":""},{"ob_id":5900,"label":"standard_name","value":"mass_fraction_of_ammonium_dry_aerosol_in_air","vocabulary":"cf_standard_names"},{"ob_id":5901,"label":"var_id","value":"mmrnh4","vocabulary":""}]}