{"ob_id":69717,"names":[],"terms":[{"ob_id":2916,"label":"units","value":"1e-9","vocabulary":""},{"ob_id":13898,"label":"long_name","value":"prior column-average dry-air mole fraction of atmospheric methane (ppb)","vocabulary":""},{"ob_id":13899,"label":"var_id","value":"xch4_prior","vocabulary":""}]}