{"ob_id":61971,"names":[],"terms":[{"ob_id":9215,"label":"units","value":"1e-6","vocabulary":""},{"ob_id":22383,"label":"long_name","value":"A priori dry-air mole fraction of atmospheric methane (ppmv).","vocabulary":""},{"ob_id":22384,"label":"var_id","value":"ap_ch4_vmr","vocabulary":""}]}